Document DMw0V6k0N1o2gRdLzOjjRj69O

CATALOG Tf` U II BASECOAT PIASTERS PIASTER FINISHES PIASTER BASE 9ATA) TIME PRODUCTS = U6S REVISED AUGUST 1, 1937 Mi:m=ra TATES GYPSUM COMPANY ft} oUaS LATHING PLASTERING MATER BASE COAT PIASTERS Page RED TOP CEMENT PLASTER........................................................ 3 RED TOP WOOD FIBER PLASTER........................................... 4 RED TOP SANDED PLASTER........................................................ 5 BONDCRETE -- FOR PLASTERING OVER CONCRETE . . 5 PLASTER FINISHES RED TOP GAUGING PLASTER..............................................6 USG MOULDING AND ART PLASTERS.................................7 RED TOP KEENE'S CEMENT.......................................................8 ORIENTAL COLORED FINISHES (Interior and Exterior) . . 9 RED TOP TROWEL FINISHES...............................................10 RED TOP FLOAT FINISHES..................................................... 11 SABINITE ACOUSTICAL PLASTER......................................... 11 PLASTER BASES LIME PRODUCTS '-V; 3k i v 3 f, jj K'j | jijN\ -:nUr f !_l i 6 '-a J | ROCKLATH. THE FIREPROOF LATH . INSULATING ROCKLATH . . . PERFORATED ROCKLATH . . . WEATHERWOOD INSULATING LATH RED TOP METAL LATH .... RED TOP METAL LATH ACCESSORIES USG PLASTERING SYSTEMS . . PYROBAR PARTITION TILE . . . USG HYDRATED FINISHING LIME USG FINISHING QUICKLIMES . USG MASONS HYDRATED LIMES USG MASONS QUICKLIMES 12 13 14 15 16 18 20 25 21 22 23 24 I1U 016 2 IB S X-170 COPYRIGHT 1937 U.&. GYPSUM CO. tOM 9-37 RED TOP CEMENT PLASTER Red Top Cement Plaster is a gypsum plaster. It is job-mixed with, sand and used as the plaster base coat for interior work over all of the stand ard types of lath, including wood, metal, gyp sum and insulating laths, and over gypsum tile, clay tile and brick. Most base coat plastering is done with this type of material. TYPES Most cement plaster is "fibered." Also made not fibered and extra fibered. riBERED "Fibered" cement plaster is used for most base coat work. It is fibered with a long tough fiber to make the mortar more cohesive, to prevent droppings and to help hold the mortar in place until it sets. NOT FIBERED Like fibered cement plaster except that the fiber is left out. EXTRA riBERED Contains more fiber than "fibered" plaster. Usually ordered for plas tering over metal lath. BRANDS Red Top*, Ivory*, Granite, Big-4*, Niagara, Peerless*, Hardwall, and King's Wind sor*. Dark (Gypsite) plaster is Red Top Eldorado*. PACKAGE The 100-pound US G paper bag. COVERING CAPACITY For average conditions mixed and applied in accordance with standard specifications: Plaster ing surface Wood lath Metal lath Gypsum lath Brick and clay tile Gypsum tile Sq. yds. 180-210 105-135 225-240 165-200 235-255 per ton (Sanded 2 to 1) (Sanded 2 to 1) (Sanded 2 to 1) (Sanded (Sanded 3 to 1) 3 to 1) ADVANTAGES Red Top Cement Plaster sets from the lath to the surface. It sets in a few hours and dries out in a few days. Early hardness and strength promote speed in build ing, early decoration and early occupancy. FIREPROOF Has the fireproof qualities of gypsum. Gypsum will not burn. It will not even transmit high temperatures until it is calcined. It helps protect the building from fire. WOOD FIBER BLASTER * SAUCING PIASTER * MOULDING PIASTER * SEASONS LIME =* FINISHING LIME METAL LATH PRODUCTS s 9ETia^.A?H JICOESSORIES * ROCKLATH. THE FIHEPROOF LATH : INSULATING ^OCKLATH ~ '' .2$ 3ffZAX&EfiWJ>DD sLATH . * DEPENDABLE SETTING TIME Red Top is outstanding in dependability of setting time. There is no other plaster like it. All Red Top Gypsum Cement Plasters are specially proc essed to give dependability of setting time and job performance. All Red Top Gypsite Cement Plasters have similar dependability because of the natural qualities inherent in such plasters. SAND SPECIFICATION Sand shall be clean, sharp and free from saline, alkaline, organic and other harmful substances. It shall be graded from fine to coarse and, when dry, shall screen as follows: all through a No. 4 sieve; 0 to 10 per cent retained on a No. 8; 15 to 80 on 30; 70 to 95 on 50; not more than 5 through 100. MEASUREMENT OF SAND Fourteen to sixteen No. 2 shovels (not scoops) of dry sand to the 100-lb. bag is approximately the right sanding for a 2 to 1 mix; or use six 10-qt. pails to one 100-lb. bag. MIXING--MACHINE MIXING Red Top Cement Plaster can be mixed by hand or machine, mixing only enough material for one hour. Either way, it should receive the same amount of sand and the mixing equipment should bekeptclean and free fromset-upmortar. Gypsum plasters should not be remixed or retempered. * JUg. Trade-mark 3 Makes weight in mixed cars to most destinations. Takes LCL rate when included in mixed car but saves extra hauling. BB016 2190 RED TOP WOOD FIBER PLASTER ADVANTAGES Red Top Wood Fiber Plaster brings to the building the good features of gypsum in even greater degree than cement plaster. Has greater resistance to fire, has better insulation value. It aids remodeling, can be sawed if necessary In winter time it has the advantage of requiring only water to prepare it fllliEfl DSC PNODUCTS USED UN SAME JOB ir Makes weight in mixed cars to most destinations. Taka* LCL rate when Included in mixed car but mtm extra Hauling. * CEMENT PLASTER * mOCKLATH, THE FIREPROOF LATH * INSULATING OCKLATHv : S-SVEATHEHWOOD XATH * CADGING PLASTER * MOULDING PLASTER * KEENE'S CEMENT METAL LATH PRODUCTS $ METAL LATH ACCESSORIES : * MASONS LIME * ^FINISHING LIME for application. This does away with the winter difficulties of sand--occasional need for thaw ing, etc. It can be troweled smooth for one coat finish if necessary. USE Red Top Wood Fiber Plaster is used as a base coat plaster over all standard types of lath. Useful for new work, also for patching re modeling and repairing. It is called wood fiber because it contains a small amount of wood pulp fiber to give it cohesiveness and improve its working qualities under the trowel. WITH SAND Use neat for scratch coats on gypsum laths, metal lath and wood lath. For second or brown coat on above bases and for all plastering on brick, gypsum or clay tile use either neat or with equal parts by weight of plaster and dry sand. PACKAGE The 100-pound USG paper bag. Also put up in 50-pound and 10-pound paper bags. BRANDS Red Top Wood Fiber Plaster is the leading USG brand. Dark (gypsite) plaster is sold under the brand name Red Top Eldorado Wood Fiber Plaster. COVERING CAPACITY For average conditions mixed and applied in accordance with standard specifications: Plastering surface Sq. yds. per ton Wood lath Metal lath Gypsum lath 90-100 (Unsanded -- water only added) 55-65 (Unsanded -- water only added) 115-120 (Unsanded -- water only added) MIXING Mixed with water only, the plaster is hoed into the water to get a good plastic mix that stands up well in the hod and on the hawk. Where used with sand, plaster and sand are hoed into the water to get a rich mix. Tools and mixing box should be kept clean and free from set-up plaster. Do not retemper. 13BO 1 6 2 1 9 1 4 RED TOP SANDED PLASTER USE Red Top Sanded Plaster, sometimes called Prepared Plaster, is used for base coat plastering in the same manner and over the same plaster bases as Red Top Cement Plaster. It is mill-mixed with sand and requires the addi tion of water only to prepare it for application. PACKAGE 100-pound paper bag. COVERING CAPACITY For average conditions mixed and applied in accordance with standard specifications: Plaster ing surface Wood lath Metal latil Gypsum lath Brick and clay tile Gypsum tile Sq. yds. 60 to 70 35 to 45 75 to 80 45 to 55 i65lo 70 per ton (Plaster mixed with water only--no sand added) MIXING Mixed with water only. Use clean mixing equipment and clean after each mix. Plaster is hoed into water, allowed to soak ten minutes, and mixed to proper consistency. May be hand-mixed--with mixing box and hoe--or machine mixed. Machines and mixing equip ment should be kept clean. ADVANTAGES Has the advantage of a mill-mixed material--contains the right amount and grading of sand to make a good mortar and a rugged, durable interior finish. It is especially useful and desirable where clean sharp sand properly graded is difficult to get. It is especially desirable, too, for winter plastering. OTHER USG PRODUCTS USED ON SAME JOB * CEMENT PLASTER -.V* WOOD TIBER .PLASTER * GAUGING PLASTER MOULDING PLASTER - EEENES CEMENT * FINISHING LIME * MASONS LIME '* ROCKLATH, THE FIREPROOF LATH ' * INSULATING ROCKLATH $ WEATHERWOOD LATH ~ . METAL LATH PRODUCTS 3 METAL LATH ACCESSORIES Makes weight in mixed cars to most destinations. $ Takes LCL rate when included in mixed car but saves extra hauling. BOND CRETE USE A specially made gypsum base coat plaster for application to concrete surfaces. It is mixed with water only, troweled over the con crete and later finished with any one of the plaster finishes typically used over a gypsum base coat. Neither cement plaster nor wood fiber plaster should be used over concrete. ADVANTAGES Bondcrete plaster forms a better bond with concrete than does either wood fiber or cement plaster. Concrete surfaces are usually comparatively smooth with little oppor tunity for a key. Plaster, to stick to them, must knit into the surface. PACKAGE The 100-lb. USG paper bag. COVERING CAPACITY From 90to 120 square yards per ton, depending upon regularity of concrete surface and thickness applied. MIXING Bondcrete* is mixed with water only. It should not be mixed with sand or aggre gate of any kind, nor should other plasters be added to it. The plaster is dumped into the water and hoed into it to get a smooth plastic mix. Bondcrete should not be remixed or retempered. Apply only over a semi-rough, porous, open surface, free from grease and other sealing matter. Reg. Trade-mark 5 RED TOP GAUGING PLASTER ADVANTAGES USG* Gauging Plasters mi* readily and quickly with water. They blend with the lime to produce a rich plastic putty that spreads easily and produces a smooth hard fin ish. They are made by a special Aridize* process and are superior to every other type of plaster tor gauging purposes. STUB) DSC PRODUCTS USED ON SAME JOB ^ Makes weight in mixed cars to most destinations. $ Take* LCL rate when included in mixed car but saves extra hauling. FINISHING LIME --CEMENT PLASTER WOOD TIBER PLASTER MOULDING PLASTER KEENE'S CEMENT MASONS LTME METAL LATH PRODUCTS METAL LATH ACCESSORIES ^ROCKLATH. THE FIREPROOF LATH INSULATING ROCKLATH 3 WEATHERWOOD LATH USE For blending with lime putty to prepare it for application as a finish plaster. In gauged lime putty finish, lime contributes plasticity and whiteness, gypsum contributes early hardness and freedom from shrinkage cracks. USG Gauging Plaster is also used for run ornamental work -- for coves and cornices where a quick setting material is wanted. For this purpose it can be used neat or with some lime putty added. It should be a quick setting type of gauging or should be accelerated. QUICK-SET GAUGING Has a compara tively short setting time. Used for run work (running cornices, soffits of beams, etc.) or for special purposes, or for lime putty finish where mechanic expects to retard gauging himself. SLOW-SET GAUGING Used fox lime putty finish. Lime although it does not set itself, accelerates the set of the gypsum. Therefore the latter needs to be slow-setting to give the me chanic time for gauging, applying and troweling. WHITE GAUGING Made from white gyp sum rock selected from special deposits. Pre ferred for its white color. Made under special brands -- see below. LOCAL GAUGING Made from the same rock as Red Top Cement Plaster. Called "local" gauging because made from local rock at each USG rock plaster plant. BRANDS Slow set brands are: Red Top Gauging Plaster, Red Top Star* Gauging Plaster (pure white), and Red Top Superfine Finishing Plaster (pure white). Quick set brands are Red Top Gauging Plaster, and these purewhite brands: Red Top Champion*, Red Top King's Diamond*, Red Top N.Y,C. Mills* Red Top Quick Setting, and Red Top Fast Setting. Brand names are given to these types to give the mechanic a means of identifying the material he prefers. Order by brand. PACKAGE All USG gauging plasters are shipped in 100-lb. paper bags. From some plants gauging is also shipped in barrels of 230 lb. net and 250 lb. gross and in export barrels of 300 lb. net, and 320 lb. gross. COVERING CAPACITY USG Gaug ing Plaster on an average covers, when used with lime putty finish, approximately 1000 to 1400 square yards per ton. MIXING Well-soaked lime putty is dumped on a mixing board, a ring is formed in the putty and water poured into the ring. See directions page 21. 6 * Reg. Trade-marl; BSG MOULDING & ART PLASTERS USE U S G Moulding Plasters aie used archi tecturally for casting plaster ornaments in gela tine and other moulds, for running cornices, coves and soffits and for other similar use re quiring a quick-setting, finely-ground plaster that produces excellent hardness and density in the set-up material. Art Plasters are made for casting novelty art work pieces; they contain ingredients to produce extra surface hardness in the finished work. pansion during setting, thus insuring longer life for gelatine or glue moulds. ARIDIZE PROCESS An exclusive USG patented process used in the manufacture of all Moulding Plasters. Assures uniformity, produces unusual strength and density, eliminates the necessity of aging in the warehouse. OTHER USC PRODUCTS USED ON SAME JOB NO. 1 MOULDING Made from specially selected white rock of extra purity. WHITE ART PLASTER Made from same rock as No. 1 Moulding, plus ingredients to produce extra surface hardness. IVORY ART PLASTER Identical with White Art Plaster but containing mineral color ing ground in to produce casts of uniform, lasting ivory color. LOCAL MOULDING Made from the native rock at each U S G rock plaster plant. GRIND All moulding plasters are finely ground. CONSISTENCY Moulding plasters are low-consistency plasters. They take little water; therefore, they produce less bulk and set into a more dense material--actually more gypsum per cubic inch. SETTING TIME About30minutes. (No.2 White furnished to set in 20 minutes.) * CEMENT PLASTER 1* WOOD FIBER PIASTER * GAUGING PLASTER * FINISHING TIME * MASONS TIME * KEENE'S CEMENT $ METAL LATH PRODUCTS 3 METAL LATH ACCESSORIES ^ ROCKLATH. THE FIREPROOF LATH * INSULATING ROCKLATH WEATHERWOOD LATH -* TROWEL FINISHES * FLOAT FINISHES Makes weight in mixed cars to most destinations. Takes LCL rate when included in mixed car but saves extra hauling. BRANDS Red Top Moulding Plaster (local moulding). Red Top No. 1 Moulding Plaster (white). Red Top No. 2 Moulding Plaster (white). Red Top King's Diamond Moulding Plaster (white), and Golden Seal* Moulding Plaster (white). PACKAGE The 100-lb. paper bag. Mould ing is also shipped in barrels of the following weights: 230 lb. net weight, 250 lb. gross and 300 lb. net weight, 320 lb. gross. ADVANTAGES Uniformity of grind, de pendability as to setting time, and mixing quali ties, and the other advantages listed below. WHITENESS Both the No. 1 Moulding and White Art Plasters are made from specially selected white rock. SMOOTH, HARD CASTINGS No. 1 Moulding Plaster makes hard, dense castings free from bubbles and pin holes. It is preferred for use for fine ornamental and undercut work where sharply defined pieces are wanted. HEATING AND EXPANSION These plasters are free from excessive heating and ex- * Beg. Trade-mark 7 C t c v c r RED TOP KEENE'S CEMENT ADVANTAGES Red Top Keene's Cement is the hardest, densest gypsum material applied with a trowel--approximately twice as hard and strong as other gypsum plasters. It is made from gypsum rock, mined at Southard, Oklahoma, specially hand-selected for size and purity, cal cined at very high temperature to drive off vir tually all water of crystallization and ground to extreme fineness. It is pure white, non-staining, non-corrosive, non-acid, and takes an easily cleaned, high, glass-like polish. It lacks the plasticity common to other gypsum plasters, does not change in plasticity or working qualities with age, takes its set slowly and may be retempered. USE Used over gypsum plaster base coats as a finish coat for high grade plaster work to receive fine decorative treatment and where the utmost in hardness and density is required. * CEMENT PLASTER * WOOD -FIBER PLASTER * GAUGING BLASTER =* MOULDING PLASTER * TROWEL TINISHES " *T*LOAT -FINISHES * FINISHING -UME .WMASONS LIME ; seihef!ROor lath ; -*INSULATING AOCKLATH - METAL LATH PRODUCTS METAL LATH ACCESSORIES 5 WEATHERWOOD LATH : fa Makes weight in mixed cars to most destinations. Takes LCL rate when included in mixed car but saves extra hauling. WITH LIME Depending on the hardness required, Keene's Cement is used either neat (add water only) for extra hard, or with the addi tion of from 25 to 80 lb. of lime putty to 100 lb. of Keene's for hard or medium finishes, respectively. USE FOR BASE COAT Keene's Cement with lime putty and clean sand can be used for both first arid second plaster base coats. See special direction sheet pictured here. SPECIAL USES Besides standard Keene's Cement, Red Top is also made in three special types: Quick Troweling Keene's, used with lime putty for finish, permitting application and finish in one operation (setting time within two hours); Casting Keene's used neat for cast ing ornamental pieces (quick-setting);and Scagliola Keene's for the manufacture of artificialmarble (initial set, 3 to 6 hours--final set, 15 to 20 hours). PACKAGE Shipped in 100-lb. paper bags. MIXING For Extra Hard Finish, use Keene's neat; for Hard Finish, use 100 lb. Keene's and 25 lb. lime putty (one 12 qt. pail): for Medium Finish, use 100 lb. Keene's and 80 lb. lime putty (40 lb. dry lime). See Keene's direction sheet. COVERING CAPACITY For Trowel Finish, one ton covers: Extra Hard (neat)--400 to 500 sq. yds. Hard (with 25 lb. lime putty)--from 425 to 525 sq. yds. Medium (with 80 lb. lime putty)--from 500 to 600 sq. yds. RETEMPERING Keene's Cement may be retempered (remixed with the addition of water) after its set has begun with no effect on ultimate hardness. APPLICATION Apply thinly and evenly in 2 coats over dry base. Reduce suction of base coat by wetting as required. See Keene's Cement direction sheet. 8 ORIENTAL COLORED FINISHES ORIENTAL INTERIOR FINISH A factory-made, colored, finish- coat plaster, float or texture finish, for appli cation over gypsum base coat. COLORS Made in thirteen soft pastel shades and white. Travertine and Caenstone included. Select from color card or sample. ADVANTAGES Oriental*furnishes colored plaster and stucco finishes which, when properly applied, are uniform in tone and require no further decoration. Various textures are easily attained in the Oriental Interior even to excellent replicas of Travertine and Caenstone masonry. Oriental Exterior has all the natural advantages of a manufactured (as contrasted with a job mixed) stucco. PACKAGE Shipped in 100-lb. paper bags. COVERING CAPACITY From250to 300 sg. yds. per ton, depending upon texture. CHECK THESE MATEDIALS BASE COAT Any approved new plaster (gypsum, lime, lime-Keene's) at least %-inch thick, screeded level and true, set hard with a broomed surface to insure a mechanical bond. MIXING AND APPLICATION Hoe material into water, using approximately 1 part of water to 2 parts of plaster by volume (lJ/2 10-quart buckets to 100-lb. bag). Let soak over night. Mix thoroughly to a smooth, creamy con sistency. Transport in buckets. Wet down base lightly if suction is too great. Use as little water, applied wi+h a damp brush, as possible. Direc tions on each bag. ORIENTAL EXTERIOR STUCCO A factory-mixed water-resist ive stucco base coat and colored finish coat for application over standard masonry or metal rein forcement. Finish may be applied over Portland cement base coat. Water only is added. JkGAINST YOUR HEEDS M THE SAME JOB Makes weight in mixed cars to most destinations. $ Takes LCL rate when included in mixed car but saves extra hauling CEMENT PIASTER WOOD FIBER PLASTER GAUGING PLASTER MOULDING PLASTER TROWEL FINISHES .. FLOAT FINISHES ^FINISHING 3LTME ^MASONS aUIME INSULATING ROCKLATH KEENE'S CEMENT 5 METAL LATH PRODUCTS METAL LATH ACCESSORIES 4 TVEATHERWOOD LATH COLORS Finish coat is made in eleven stand ard colors and white. (Select from color card or sample and order by number). PACKAGE Shipped in 100-lb. paper bags. COVERING CAPACITY Basecoat covers same as Portland cement base coat. One ton of Finish Coat (from Vs to % inch thick) will cover from 150 to 200 sq. yds., depending on the texture. MIXING AND APPLICATION Keep stucco dry and mixing box and tools clean. Add only clean water. Mix with a hoe to the proper consistency only sufficient material for applica tion within the hour. Do not retemper, nor apply during freezing or wet weather. Allow finish coat to soak from 20 to 30 minutes. Spray base coat sufficiently to cut suction (avoid drowning surface). Apply not less than 1/g-inch nor more than 1,4-inch thick as required for texture desired. Apply over 34-inch thick base coat. Reg. Trade-mark 9 RED TOP TROWEL FINISHES ADVANTAGES Red Top Prepared Trowel Finishes are made to take full advantage of the early setting and early drying qualities of gyp sum that permit early decoration. They are basic ally gypsum finishes and therefore do not re quire the seasoning time that is required for lime finishes before they may be decorated. They produce a hard smooth finish that will take any decoration. They forr a secure and permanent bond with gypsum base coat plaster of any type; they are obtainable either in a white or pleasing gray color. TYPES There are two principal types of Red Top Trowel Finish, white and gray. A special slate colored trowel finish is also manufactured. Its use is confined to the north central states west of the great lakes. WHITE White finishes are made for those who prefer a white finish as a background for decoration. They are listed below by brands for convenience in ordering. GRAY Gray trowel finishes are used where a gray finish is preferred and often where the fin ish is left undecorated for some time. Gray Makes weight in mixed cars to most destinations. $ Take* LCL rate when included m mixed car but saves extra hauling. USE Red Top Trowel Finish is used as the plaster finish coat, the. final coat that receives the decorative treatment of paint or whatever the interior decoration may be. It is especially popular in certain parts of the country where it has been used for twenty or thirty years, where mechanics know the good work that can be pro duced with it and where the home owner wants a finish above the average in quality. I ft*CTBENTlB**Sf^? ' " - [ ';**VOOD PIASTER ~ r ^GAUGING -PLASTER ~~ ~ * FINISHING XIME ' *YASONS XTME - * BEENE'S CEMENT MOULDING PLASTER jROCKLAlH. ^HEFIREEROOFXATH- ... -* INSULATING ROCKXATH ; % TOATHERWOOD i&ATH - J : -S 3META1 XATH PRODUCTS * ] `METALPATH ACCESSORIES : trowel finish can however be decorated just as soon as the wall is thoroughly dry. BRANDS Red Top Trowel finishes are made in the following brands: Red Top Universal White Trowel Finish, Red Top Adamant White Trowel Finish, Red Top Adamant Slate Colored Trowel Finish, Red Top Adamant IXXX Trowel Finish, Red Top Badger* Gray Trowel Finish. PACKAGE Shipped in 100-lb. paper bags. COVERING CAPACITY Underaverage conditions the covering capacity of Red Top Trowel Finishes is from 350 to 400 yards per ton, mixed and applied according to standard specifications. MIXING Red Top Trowel Finishes are mixed with water only. When properly mixed they do not stand up on the hawk with, the body of base coat plasters; they appear to make a thinner mix which permits easy spreading; they are readily troweled out to a very smooth surface. APPLICATION Trowel finishes are applied over a dry and roughened base coat. They are then troweled out smooth and free from depressions and trowel marks. SHIPPING POINTS Boston;Detroit;East Chicago, Indiana; Gypsum, Ohio; Milwaukee, Wisconsin; New Brighton, New York; and Oakfield, New York. 10 Beg. Trade-mark JI2 J 0? :Jr'V-/-. ''.:>-USE v Red:Top Float Finishes are used as the trowel, then use a float, working the :; ftTMhvcdat of plaster over a gypsum base coat. ' to a true, even surface, free from float I TYPES'They of two types, white and VENTILATION After plastering * gray. USG White Sind float Finishes are gyp: r, plated ventilation must be provided to ..... .... . fmiahesmade w' ith wh ite silica sand to pro-: all excess moisture from walls and ceilings.^^;^* duce 'a finish of unusual whiteness. - ' ' EKISiifiEiKteEBSMBJ:]; USG. Gray. Sand float flnishes are slightly:-, darker than white float finishes but still compare- vi .j tively."white." They take their gray color prinJ dpally from their sand content. 3RANDS Bed Top White Silica Sand Float .: i j -1 r 5?? fL -1|i;i; >y*= - - Finish,^ Red. Top Gray Silica Sand Float Finish, - Red Top' Adamant Gray Sand Float Finish, Red: Top - Adamant . White Sand Float finish and Red Top Sand Float Finish (light gray). PACKAGE:; Shipped in 100-lb. paper MIXING Water only is added to these finishes to prepare them for application. COVERING CAPACITY USG..Sand Float Finishes cover 250 to 275 yards per ton. "APPLICATION" Apply after base coat has : set firm and hard, hut while it is still green (with-; .".in -12: hours after application). Lay on; with a- ssc.raajufgr.-.____ ir Make* weight in mixed can to most Sft0OyS?ft?afeEllSIE8: USE. Sabiniie*combines an effective acoustical corrective material and a permanent plaster finish. It is widely used to improve acoustics in churches, theaters, and audi toriums, and to quiet hospital rooms, offices and similar interiors. ADVANTAGES Its low cost and ease of application make Sabinite economical to use. Nothing but water is added to prepare it for application. It spreads with a trowel, from the hawk, like ordinary plaster, and bonds easily and firmly to the base coat. Sabinite is as rugged and durable as the ordi nary sand float finish. It is incombustible, it does not shrink or swell, is sanitary and vermin-proof. COLORS Both Sabinite *T" and "38" are furnished in four standard colors: Ivory, cream, buff and ecru. Other colors can be obtained on special order. TYPES There are two types--Sabinite "F" and Sabinite "38." Sabinite "F" is for general use on ceilings and walls. It may be troweled to a smooth, hard surface that resists wear. Sabinite "38" was specially developed to resist moisture in kitchens, shower rooms, laun dries, and natatoriums. APPLICATION Sabinite is sold in amounts required for a given job. Its application is always supervised by an experienced representative of the United States Gypsum Company. The application of IQ0 square yards requires about 11 hours of plasterer's tim<i and 7 hours of mixing labor, including delivery to the machine. ROCKLATH, THE FIREPROOF LATH ADVANTAGES Rock] 3 tfc* is fireproof, rigid, non-warping; it forms a stronger bond with plaster than any other type of lath. Falling plaster is unheard of where Rocklath is used. It is economical, costing very little more than the cheapest kind of lath. USE As an incombustible, fire-retarding plas ter base, especially for frame buildings. SIZE Rocklath is made in three-eighths inch thickness, 16 inches wide by 32 and 48 inches long. 4JMCK THIS 11ST Ft)ft fJSE DN HOCKUIH JOBS Makes weight in mixed cars to most destinations. $ Takes LCL rate when included in mixed car but saves extra hauling. INSULATING ROCKLATH * CEMENT PLASTER > WOOD FIBER PLASTER GAUGING PLASTER * FINISHING LIME * TROWEL FINISHES "' FLOAT FINISHES * KEENE'S CEMENT * MASONS LIME -^MOULDING PLASTER - -----j: $ METAL XATH PRODUCTS 5 METAL LATH ACCESSORIES .! -:3 ]A j l ) | BUNDLES Packed in bundles, six lath to the bundle, to protect edges and surfaces. FOOTAGE AND WEIGHT PER BUNDLE The bundle of 32-inch length Rocklath contains 21V3 sq. ft. and weighs approxi mately 30 lb.; and each bundle of 48-inch Rocklath contains 32 sq. ft. weighing approxi mately 45 lb. IDENTIFICATION Identified by the name in red on the edge of each package. NAILS USED One and one-eighth inch, 13 gauge, 5/ig-inch flat head blued lath nails. Rocklath is easily and quickly erected. It saves plaster and protects the framework from the un necessary absorption of moisture and the warping that may result from it. It does not stain plaster nor create lath marks. SPACING OF NAILS Nails are spaced approximately 4 inches apart, using 5 nails per stud. Nails at edges should be spaced % inch from edge. First nail to intermediate supports, then the ends. Drive all nails home. Center ends over support except when using Bridjoint clips. OTHER APPLICATION DETAILS To cut, score with a hatchet or knife and break over knee. Butt Rocklath units, breaking joints in alternate courses. Space cut ends *4 inch apart. Stagger joints between walls and ceilings. Fit Rocklath tight together at re-entrant angles and comers. Cut accurately and fit neatly around electric. outlet- boxes, pipes, etc. All re-entrant angles should be reinforced by applying Comerite over the Rocklath. PLASTERING Do not wet lath. Apply plaster in three coats to a full half-inch thickness over the face of the Rocklath. With cement or prepared plaster bases, darby brown coat lightly --use water sparingly. With wood fiber base coats, broom brown coat before plaster begins to set. Apply finishes in customary manner. Always provide ventilation. THICKNESS Or GROUNDS Plaster grounds must be full %-inch thick (3/g-inch Rocklath, V^-inch plaster). Reg. Trade-mark 12 INSULATING ROCKLATH USE As an insulating, incombustible lath or plaster base ior outside walls and top-floor ceil ings especially for frame building construction. ADVANTAGES Insulating Rocklath has all of the advantages of Rocklath. It is the same material, upon the back of which is mounted a thin, smooth, bright sheet of aluminum foil. Its heat insulating value is equal to or better than that of a half-inch thick fiber insulating lath. Its insulating efficiency is based on a new principle, briefly outlined as follows: 1-CONDUCTION Hold a poker in a hot fire and the heat travels from the fire to the hand along the poker by conduction. 2 - CONVECTION Stand over an open register; the hot air flows up the pipe. This heat travel is by convection. 3-RADIATION Heat travels from a fireplace and warms the hand without warming the air between. This is radiant heat. Heat passing through the walls or roof of a frame building (from inside out or from outside in) must pass across the air space between the studs and rafters. Approximately seventy-five per cent of such heat travel is by radiation. Insulating Rocklath resists the passage of radiant heat. It resists summer heat by reflect ing it back as a mirror reflects light. In winter time, when the heat flow is out ward, Insulating Rocklath insulates by reducing the flow of heat by radiation. I PDCKLATH.'THE FIREPROOFLATH $ METAL LATH PRODUCTS $ METAL LATH ACCESSORIES .CEMENT PLASTER v * WOOD TIBER PLASTER . .* SAUCING PLASTER * FINISHING LIME .:>*3bWEL ^TNISHES v:.* ''KEENE'S CEMENT <* MASONS LIME * MOULDING PLASTER Bright surfaces that are efficient in reflecting light and radiant heat are also efficient in refus ing to emit or give off heat by radiation (Kirchoff's Law of Physics). Insulating Rocklath reflects approximately 90 per cent of the radiant heat coming in contact with it, whereas other materials, such as wood, brick, and fiber reflect only about 10 percent. The aluminum surface does not dull appre ciably. The slight ultimate oxidation reduces but little its reflecting and non-radiating quality. SIZE %-inch thick, 16 inches wide, 32 and 48 inches long. BUNDLES, FOOTAGE, WEIGHT PER BUNDLE Same as Bundled Rocklath. IDENTIFICATION Insulating Rocklath like Rocklath, is identified by the distinctive edge marking on the bundle. Here, however, look for the name Rocklath on the blue label. APPLICATION Insulating Rocklath is ap plied exactly the same as described on the opposite page. The foil side of the units should be set against the framing members. It should face an open air space. Thickness of grounds and plastering is the same as specified for Rocklath. 13 SAME JOB Makes weight in mixed cars to most destinations. $ Takes LCL zale when included in mixed car but saves extra hauling. PERFORATED >i<. i: h ROCKLATH USE Perforated Rocklath is an improved gyp sum plaster base, combining fire resistance, great strength, and low cost. In appearance this lath is like other bundled Rocklath except for the perforations, which give it its distinctive qualities. These perforations, spaced at regular intervals, are of suitable size to allow the plaster to penetrate the perforations, and form stout mechanical "keys" at the back of the lath. DHE* YOUR DTHER NEEDS AGAINST [rnsrn * METAL LATH PRODUCTS ^ * METAL LATH ACCESSORIES - " *OEMENT BLASTER .v * WOOD OTEfi;3UJlSIEB::.:;^v7,r::'-| USED ON SAME JOB ' * GAUGING PLASTER * FINISHING LIME * TROWEL FINISHES v + FLOAT FINISHES * XEENE'S CEMENT ** MOULDING PLASTER * MASONS LIME : ^1 1 1 [>% at the back of the lath, which supplement the "natural" bond between plaster and the sur-T~ face of the lath. -4 EASY TO PLASTER OVER Mechaa. ics like to work with Perforated Rocklath. The perforations spaced four inches apart help the lather to measure the board with his eye, making it easier to measure off and score and to produce odd pieces of correct length to fit standard stud spacing. The plasterer likes the way the perforations slice plaster off the trowel as it sweeps over them, and makes plasterinc easier. SIZE %-inch thick, 16 inches wide, 32 anc 48 inches long. BUNDLES AND FOOTAGE Packed! bundles, six lath to the bundle, containin 2IV3 and 32 sq. ft. respectively. IDENTIFICATION Perforated Rocklatl similar to Bundled Rocklath, is shipped in bir dies distinctly identified with a red bundlir label carrying the product's name. APPLICATION Perforated Rocklath applied just like Rocklath--see complete deta on application of Rocklath on page 12. ADVANTAGES The outstanding advan tage of Perforated Rocklath is its added resist ance to the progress of fire in lath and plaster construction. It has all the advantages of Rock lath--it is economical, non-combustible, has an even greater bond for plaster. Its plus value is persistence of the bond between the lath and plaster for a longer time after having been attacked by fire. Holes in Perforated Rocklath "slice" plaster from the trowel. Insert shows formation of keys at back of lath ONE-HOUR FIRE RATING Tests con ducted at the U. S. Bureau of Standards on a Perforated Rocklath partition, plastered with onehalf inch of gypsum plaster, demonstrated that this construction had sufficient fire resistance to be qualified for a one-hour fire rating. Hundreds of cities have already granted authority for the use of Perforated Rocklath for one-hour fire construction. MAXIMUM BOND WITH PLASTER Plaster applied over Perforated Rocklath bonds with a double grip. First of all, the surface of the lath forms a stronger bond with plaster than any other type of lath. Secondly, plaster penetrates the holes, and forms stout "mechanical" keys 14 m WEATHERWOOD INSULATING LATH ADVANTAGES A felted wood fiber prod uct, highly moisture-resistive. Low thermal conductivity of .33. Provides plaster base and insulation, a two-in-one material. Has approximately twice the bond of plaster with the average lath. Long, unsupported joints between the board units are tongue-and-grooved and face-beveled for greater strength at joints. Also made with metal reinforcement attached to the long, unsupported edge. Can be furnished with reinforcement on end edges as well. USE As an insulating plaster base for gypsum plaster in wood frame construction for exterior walls and top-story ceilings. YARDAGE PER BUNDLE Half-inch thickness contains 12 units to the bundle (8 sq. yds.); three-quarter-inch thickness, 8 units to the bundle (5]/3 sq. yds.); one-inch thick ness, 6 units to the bundle (4 sq. yds.). IDENTIFICATION Each bundle is dis tinctly marked for thickness and name. NAILS USED One and one-eighth inch, S/J6-inch head, blued lath nails for the half-inch thickness; 1%-inch, y^-inch head, blued lath nails for three-quarter and one-inch thicknesses. r TYPES Two types: 1-Has tongue-and-groov ed and face-beveled long edges. 2-Has metal reinforcement on one long edge, otherwise this type is identical with the standard unit. SIZES Weatherwood* Insulating Lath is y made half-inch, three-quarters and one-inch JI. thick, 18 inches wide by 48 inches long. S- PACKAGE Wrapped in bundles for easy handling and stacking and protection of edges g\ and surfaces of lath. Illustration shows plastering over metal reinforced insulating lath--metal reinforcing strengthens joints. . METAL iLATH PRODUCTS *YETJLL &RIH ACCESSORIES 5* CEMENT PLASTER ;r':- , * WOOD FIBER PLASTER * GAUGING PLASTER * FINISHING LIME * TROWEL FINISHES * FLOAT FINISHES KEENE'S CEMENT * MOULDING PLASTER MASONS LIME SPACING OF NAILS Space nails ap proximately 5l/2 inches apart, y2 inch from the edges, four to each bearing. OTHER APPLICATION DETAILS Apply lath with the bevel edge exposed, the length at right angles to the framing members. Center end joints over supports staggered in alternate courses. Break end joints at walls and ceilings. Long joints shall be brought in moderate contact; space J/4 inch apart at ends. Where metal reinforcement is used, place the unit with reinforcement at bottom edge of lath; slide reinforcement over joint after lath is applied; do not nail reinforcement. PLASTERING Do not wet lath. Apply gyp sum plaster in three coats, scratch, brown, and finish, to a uniform full half-inch thickness over the face of the lath. Provide ventilation. THICKNESS OF GROUNDS Plaster grounds must be full one inch for half-inch lath; 1*4 inch for three-quarter-inch lath; and 1 y2 inch for one-inch lath. Reg. Trade-mark 15 US USED ON SAME JOB BB016 2202 RED TOP METAL LATH PRODUCTS ADVANTAGES Metal Lath has distin therefore should be used in all classes of byj guished itself as a logical base and reinforce ing at as many of the following points as possib I ment for all types of plain and ornamental 1-All stud bearing partitions and stud e* plastering. Its function is to help prevent plaster rior walls including fire stops. cracks and streaks and to provide an economical 2-All ceilings, particularly under inhabit method of fireproofing. Metal Lath walls and ceilings resist the strains of settlement, wind, earthquakes, impact, vibra tion, etc. and retain .heir firm, smooth surface, unmarred by cracks. Walls and ceilings of Metal Lath covered with three-coat plastering have been accorded a one hour fire safety rating by the Underwriters, and floors, over heating plant, fuel storage, etc. 3-At chimney breasts, around flues and ha( of kitchen ranges. 4-Stairwells and under stairs. For economy in floor space, use 2-inch sol Metal Lath and plaster partitions on non-bearir walls and also for stair and elevator enclosure MATERIALS USED Red Top* Metal La: products shown on pages 16 and 17 are mac of the following standard lath materials, eac distinctly tagged for identification: Open Hearth Steel (Painted Steel)--A con 1 l pound of iron and carbon with few impuritie (phosphorus, manganese, etc.). Painted blacl Copper Bearing Steel--Similar to Ope is Hearth Steel with the addition of about Vi of per cent of copper. Tests prove its superiority i resisting corrosion and acid. Painted black. i Armco Ingot Iron -- A pure iron, excep tionally free from impurities, highly rust-resis tive. Painted black. Galvanized Steel -- Fabricated from higl quality, tight-coated galvanized steel sheets. * Re$. Trademark )t V TO fffl 16 ! RED TOP METAL LATH PRODUCTS SL; r red TOP DIAMOND (JUNIOR) MESH * material weights per sq. td. size, inches Painted Steel.......... 2.2- 2.5-3.0-3.4 Copper Bearing... *2.2--*2.S-3.0-3.4 Armco Iron....................... *2.5 -- 3.0--3.4 Galvanized....................... 2.5 . . 3.4 24 or 27x96 24 or 27 x 96 24 or 27x96 24 or 27 x 96 & Above also supplied in Self-Furring or Corrugated. ? PACKING: 27 x 96 in. (standard), 10 sheets or 20 sq. yds. f per bundle. 24 x 96 in. (when ordered), 9 sheets or 16 sq. ~ yds. per bundle. ONE-EIGHTH-INCH Z-RIB (FLAT RIB) LATH WEIGHTS MATERIAL PER SQ. YD. Painted Steel.............. .... 2.75-*3.0- 3.4 Copper Bearing......... .... *2.75-*3.0- 3.4 Armco Iron................. ............................... *3.4 Galvanized................. ............................... 3.4 SIZE INCHES 24x96 24x96 24 x 9b 24x96 All above items packed 9 sheets (16 sq. yds.) per bundle. three-eighths-inch rib lath material Painted Steel............... Copper Bearing. Armco Iron........... Galvanized Steel.. WEIGHTS PER SO. YD. *22..55-- 3.0-3.4- 4.0 *2.5- `3.0-3.4- *4.0 ................ 3.4-*4.0 ................ 3.4-*4.0 SIZE INCHES 24x96 24x96 24x96 24x96 All above items packed 9 sheets (16 sq. yds.) per bundle. THREE-QUARTER-INCH RIB LATH MATERIAL: Painted Steel (Copper Bearing and Galvan ized Steel on order). WEIGHTS PER SO. FT. SIZE, SHEETS .50 lb. (28 gauge) .60 lb. (26 gauge) .75 lb. (24 gauge) 2 it. x 8, 10 & 12 ft. 2 ft. x 8, 10 & 12 ft. 2 ft. x 8, 10 & 12 ft. PACKING: Normally packed 9 sheets per bundle, but orders will be filled for the specified number of sheets. Odd lengths can be supplied by cutting down from the next longer stock length. Charge will be made for waste involved. RED TOP EXPANDED STUCCO MESHf MATERIAL WEIGHT PER SQ. YD. SIZE INCHES Copper Bearing................................. 1.8 - 3.6 48 x 99 (Painted Steel and Galvanized -- both weights can be had on order.) Packed 10 sheets (36% sq. yds.) per bundle. RED TOP STRIPLATH--CORNERITE PRODUCT SIZE INCHES WEIGHT PER 1,000 FEET STRIPLATH.......................... 3 X 96 CORNERITE.......................... 3x3x96 60 lb. 1251b, Painted SteeL Other sizes and Galvanized material on special order. Packed 504 lin. ft. per bundle. `Items marked thus (*) are non-standard and are fabricated on order. RED TOP METAL LATH ACCESSORIES Complete information on the complete Line of Bed Top Metal Lath Products and Accessor ies is found in the Red Top Metal Lath Hand book, pictured below. Write for a free copy. Ask for ML-18. SMALL NOSE CORNER BEADS Standard in 26 gauge Galvanized Steel. 24 gauge can be supplied on order. ITEM AND DESCRIPTION WGT. 1,000 UN. FT No. 1A 2'/2-in. Expanded Flange Bead.......... 230 lbs. No. 2A ]3'4-in. Scalloped Solid Flange Bead. 220 lbs. No. 4A 1 Vi- in- Standard Solid Flange Bead . 200 lbs. No. 12A 2!/2->n. Wide Solid Flange Bead........ 370 lbs. No. 16A 2 Vi-in. Wide Scalloped Solid Flange 370 lbs. BULL NOSE CORNER BEADS Standard in 26 gauge in Galvanized Steel. 24 gauge can be supplied on order. NO. RADIUS DESCRIPTION WGT. 1,000 LIN. FT. No. 5A Vi-in. 13/4-in. Solid Flange Bead 273 lbs. *No-10A 3/4-in. 2'/2-in. Expanded Flange Bead. 375 lbs. No. 600A %-in. 21/2-in. Reiniorced Nose, Solid Flange Bead........ 570 lbs. No. 603A 1 Vi-in. 2V2-in. Reinforced Nose, Solid Flange Bead........ 900 lbs. No. 14A 3/4-in. 2 Vi-in. Non-Reinforced Nose, Solid Flange Bead........ 420 lbs. Also supplied in 24 gauge on order. PLASTERING ACCESSORIES The following items are made of 26 gauge Galvanized Steel. Standard lengths of 10 feet only. No. 6A-Flush Base Ground, Vi-in. ground, 160 lbs. per 1,000 lineal feet. No. 6A-Flush Base Ground, %-in. ground, 175 lbs. per 1,000 lineal feet. No. 6A-Flush Base Ground, 3/J-in. ground, 190 lbs. per 1,000 lineal feet. No. 3A- Expanded Flush Base Ground, Vz-in. ground, 2 Vi-in. flange, 230 lbs. per 1,000 lineal feet. No. 7A-Curved Point Base Screed, V-in. ground, 195 lbs. per 1,000 lineal feet. No. 8A-Metal Picture Mould, Concealed Type, 260 lbs. per 1,000 lineal feet. No. 9A-Comer Bead Clips, Blue Steel, 25 lbs. per 1,000 pieces. COLD ROLLED CHANNELS Not painted unless otherwise noted. Black Asphalt Pjj coat or Galvanized obtainable on order. Standard lengths--14, 16, 18 and 20 feet. TYPE SIZE WGT i -3 GAUGE Un'_ | Regular................... Regular................... Regular................... Regular................... Box (Square)......... 34 in1 in. l'/iin. 2 in. % in. 16 276 lt^ 16 332 Ik, 16 44211^ 16 553 18 276 lb. HOT ROLLED CHANNELS AND SHAPE} Not painted unless otherwise noted. Black Asphalt Paint di coat obtainable on order. Standard lengths--16 and 20 ft. Other lengths on ordei SIZE WEIGHT UN. rr V4 in. 1 in. 1V2 in. 2 in. .30 lbs. .41 lbs. .85 lbs. 1.26 lbs. 300 lbs. 410 lbs. 850 lbs. 1260 lbs. Other weights of these sizes also available on order. Angles, Flats and Rods can be supplied on request. TRUSSTEEL STUDS & RUNNER TRACK: Ideal for hollow partition construction. Fireproof. Econon ical. Permits concealing of pipes and conduits. Easytoerec Standard lengths of studs--7, 8, 9, 10 and 12 feet Runne Track--8 ft. 2 in. only. "Fixed" lengths of studs have a adjustable feature permitting length adjustment from 6 i: under to 2 in. over the length purchased. Black aspha dip-coat painted. Write for complete information. METAL ARCHES A ready-formed plastering arch that provides perfect arched openings at low cost. Made from "Galvanealed" steel. STYLE OF ARCH iFOR 2 z 4 STUDDING) No. 11-Half-Circle.................. DOOR OPENING 20 inches NO. PCS. PER SET No. 22 - Half-Circle. 2 ft. 6 in. No. 33-Gothic......... 2 ft. 6 in. No. 44-Gothic......... 4 ft. No. 55-Elliptic........ 5 ft. No. 66-Elliptic........ 6 ft. TIE AND HANGER WIRE 18 ga. Galv. Tie Wire....................................... 12 V^ lb. spools 18 ga. Galv. Tie Wire.................. 25 lb. hanks (cut lengths) 18, 16, 14 and 12 ga. Galv. Tie Wire 50 and 100 lb. coils 18, 16 and 14 ga. Black Tie Wire. .. .50 and 100 lb. coils 10, 9, 8, 7, 6, 5 & 4 ga. Galv. Hanger Wire..............................50 and 100 lb. coils NAILS AND STAPLES NAILS--4d blued, 3/4 in. concrete. FURRING NAILS-(For Stucco Mesh) 850 per 7 lb. box. STAPLES -- 1 in. and 1 Vi in., blued. 18 RED TOP METAL LATH ACCESSORIES fc. USG PLASTERING SYSTEM^ USG RESILIENT PLASTERING SYSTEMSl USE USG Resilient Plastering Systems per mit Rocklath (gypsum lath units) or metal lath and plaster to be connected to wood or steel framing or furring members of wall partitions and ceilings by means of spring clips which form a floating unit. Both types of Resilient Systems are erected by the lather. ADVANTAGES USG Resilient Plaste: Systems are practical plastering systemdesigned to give maximum protection agaj_Y cracking, to eliminate lath and joist streaks aa^S to make walls and ceilings more sound-proofjl In addition, they are fireproof, easily erected,^ and low in cost. ROCKLATH RESILIENT PLASTERING SYSTEM This is a practical system for attaching Rocklath with spring clips to fram ing members. It is adapt able to all types of frame construction, to steel stud partitions, and sus pended ceilings. ADVANTAGES Al most entire elimination of cracking, freedom from lath and joist streaking, permanence, fireresistance, better sound insulation. ERECTION The only materials used in the construction of the Rocklath Resilient Plastering System not used in ordinary plastering construc tion jobs are the resilient clips. Various types of clips are used to apply Rocklath resiliently for various types of construction. Materials used in the system are sold as a unit--bundled Rock lath, resilient clips, and nails. RED TOP METAL LATH RESILIENT SYSTEM USE Red Top Metal Lath Resilient System by the use of spring clips, provides a prac tical method for resili ently attaching and fur ring metal lath in virtu ally all types of work. ADVANTAG ES Maximum protection against cracking, preven tion of lath and joist streaking, sound insulation. It is adaptable to practically all types of resi dential and commercial fireproof and semifireproof construction, suspended ceilings, wood frame construction, steel-stud partitions and masonry surfaces. MATERIALS For use in the system five different types of clips and a special steel channel stud and seat are available. All parts of the system are sold as a complete unit. SPECIAL METHODS FOR ATTACHING ROCKLATH NOTE: The Company will furnish on request bulletins giving complete information on the systems described below. USG BRIDJOINT SYSTEM In this system Rocklath is nailed to studs in the standard way with 5 nails per width of board except that end joints of the board fall between, rather than on, supports. To reinforce end joints, a special clip--No. W-22--is used. Advantages of this system of Rocklath attachment are: (1) All Rocklath joints are kept off wood framing--this helps reduce a common source of plaster cracks caused by movement resulting from the expan sion and contraction of wood. (2) Comers are not nailed--instead Rocklath meeting at comers is secured with another type of clip--No.W-33 --permitting free movement of wood framing at corners. (3) Waste is greatly reduced--all lengths of lath can be used. (4) Framing mem bers need not be spaced exactly 16 inches on centers; this reduces framing cost materially. USG "FREFLOTE" CLIP SYSTE1 0 The Freflote System for Rocklath offers six meti ^ ods for the attachment of lath to wood or %-incl * steel channel framing. Each method has a dis tinctive semi-rigid or "knee-action'' clip to hold ' Rocklath to supports. The system tends to reduce plaster cracks by minimizing strain on lath caused by movement of framing. It provides construction using stand ard grounds, or a self-furring plan to eliminate lath stains, with l^-inch grounds. The system also offers the Bridjoint principle if desired. 20 USG HYDRATED FINISHING LIME USE Hydrated Finishing Lime is a lime that has been slaked as a part of the process of manufacture, ground to a fine powder and packed in bags. It requires only soaking to pro duce lime putty ready to use, free from the pos sibility of "pops" and "pits." It is used with Red Top Gauging Plaster for the lime putty finish coat which is applied over any of the gypsum base coat plasters. It is occasionally used, mixed with sand, for plaster base coats and as an ingredient in stucco base and finish coats where it adds plasticity and waterproofing. TYPES There are two types of U S G Hydrated Finishing Lime, "Dolomitic" from the North western Ohio dolomitic field and "High Cal cium" manufactured at Farnams, Mass., and New Braunfels, Texas. Dolomitic limes are produced from limestones containing, in addition to calcium, a high per centage of magnesium. High Calcium limes are produced from limestone composed largely of calcium and a small amount of magnesium. BRANDS Dolomitic Finishing Lime from Genoa, Ohio, is shipped as Ivory, Grand Prize*, and Red Top Hydrated Finishing Lime. High Calcium Finishing Lime from Farnams is sold under the Cheshire brand, and from New Braunfels, Texas, as Plastimax*. PACKAGE The standard package is a 50-lb. multiwall paper valve bag. Plastimax, however, is shipped only in a 40-lb. paper bag. by weight). Make a shallow ring of lime putty on the gauging board, add water, sift gauging plaster into water, allpw to soak and become thoroughly wetted, then mix with the putty. COVERING CAPACITY Depending upon the mechanic, conditions of application and trueness of base coat, one ton of USG Hydrated Finishing Lime will cover from 500 to 700 square yards. ADVANTAGES USG Hydrated Finishing Limes offer uniform, snowy whiteness and free dom from black specks and unslaked particles which tend to cause popping or pitting in the finished work. Thoroughly hydrated at the fac tory, they are not subject to deterioration in storage when properly stored in a dry warehouse. Complete tests are constantly made at every stage of manufacture, to assure a uniform prod uct of maximum plasticity and covering capa city. Not only is the quicklime thoroughly hydrated, but the resulting product is air floated to eliminate all impurities. MIXING AND SOAKING Pour water into clean, tight, wood or metal box. Sift dry hydrated finishing lime through a coarse screen into the soaking water, until the water is com pletely absorbed and the surface shows a lightly cracked appearance. Use about 6V2 gallons of water to the 50-lb. bag. Allow to soak undis turbed, for at least twelve hours. Protect from frost, evaporation, and dirt while soaking. Hoe putty through Vi-inch mesh screen to bring out smooth, even, texture. Soaking develops plasticity. Many plasterers produce a smoother, more plastic putty by hoeing the lime thoroughly and then running it through an 8-mesh screen into an aging box and allowing to remain for at least 12 hours, or overnight. Plastimax has the advantage of requiring no soaking. It can be mixed with water, hoed thor oughly, and used immediately. GAUGING Lime putty finish is made of lime putty and calcined gypsum. One part dry USG Gauging Plaster is added to 3 parts of lime putty by volume (equal to one part dry gauging plaster to 2 parts dry hydrated lime Trademark 21 USG FINISHING QUICKLIMES >!; J r. USE USG Finishing Quicklime is used with Red Top Gauging Plaster for white or lime putty finish coat applied over any of the gypsum base coat plasters. It is also used, mixed with sand, for base coat plaster and as an ingredient for stucco base and finish coats where it adds plas ticity and waterproofing. Quicklime requires time for slaking and aging before use. TYPES USG Finishing Quicklime is made from High Calcium rock at Farnams, Mass., and New Braunfels, Texas. At the Farnams plant, it is made in lump, pulverized, fine grained, and superfine; at New Braunfels plant, in lump and pulverized. The difference between lump, pulverized, fine grained, and superfine is the fineness of the grind. The finer the grind the quicker and more thorough is the slaking process. BRANDS Farnams lime is sold under the Cheshire brand, New Braunfels under the Peerless brand. PACKAGES Cheshire lime is shipped in 80lb. moisture-proof paper bags. Peerless in 50and 100-lb. waterproof liner paper bags. Cheshire is also shipped in 180- and 280-lb. net wood barrels or steel drums; Peerless in 180-lb. steel drums. All types of Cheshire lime are sold in bulk. Peerless is sold in bulk in lump only. SLAKING Fill the slaking box half way with water, allowing the hose to run while the lime is added. As the lime is added, agitate it vigorously with a hoe. These limes slake quickly and must be submerged at all times to prevent burning. When mixed to a consistency of heavy cream, screen through an 8-mesh screen. AGING After screening, run mixture into an aging box. Lime must be aged until it is cool and the putty is hodable. Lime putty produced from quicklime should never be used until aged at least one week and a longer time is preferable to assure complete slaking of all particles. GAUGING See preceding page. COVERING CAPACITY One ton of quicklime when prepared and mixed as above should finish 1,000 square yards. ADVANTAGES The advantage of quick lime over hydrated lime is its greater putty yield, ton for ton. Quicklime putty must, how ever, be thoroughly aged before use. In the early days before the introduction of gypsum plasters when quicklime was universally used for plastering, both for base coat work and finish, the plastering contractor often slaked and pitted lime putty to age for a year before use--thus, much old time plastering has stood the test of time over generations. USG Finishing Quicklimes are made from selected high calcium rock in completely mod ern USG mills. Burning kilns are of both the shaft and rotary types. The same high standards of qualiiy inherent in all USG building materials are present in USG Finishing Quicklimes. Unified labor atory control assures com plete uniformity of product. 22 USG BASOKS HYDRATED LIMES USE For masonry mortar of good plasticity and having good waterproofing qualities. Bureau of Standards' Research Paper R. P. 683, "A Study of the Properties of Mortar and Brick and Relation to Bond," establishes the weakest point in brick work to be at the juncture of the masonry unit and the mortar. Tests and numerous field observations made by competent authorities indicate that brick masonry walls can be made water-tight by the proper use of non-shrinking mortars which form a solid bond with the masonry unit. Lime and Portland cement mortar for masonry above grade fulfills perfectly this specification when mixed as here inafter specified in the proporfions of 2 parts of lime putty, 1 part of cement, and 9 parts of sand (proportions by volume). Standard Portland cement mortar gauged with at least 10 per cent of lime has increased plasticity and workability as well as waterproofing qualities. TYPES Dolomitic from all plants except Farnams, Mass., Evans, Wash., and New Braun fels, Texas where High Calcium limes are produced. BRANDS The Masons Hydrated Lime from the Farnams, Oakfield, Genoa and Cordova plants are shipped under the "Red Top" brand, that from the New Braunfels, Texas plant, "Dittlinger Snowdrift*," and that from the Evans, Wash, plant, "Marble Rock." PACKAGES Masons Hydrated Lime is ship ped from the various plants packaged as follows: Farnams, Oakfield, Genoa, Cordova .... 50-lb. paper bags New Braunfels, Tex., 40-lb. paper bags Evans, Wash., 10 and 50-lb..paper bags All Plants............................... In bulk MIXING Thoroughly mix the hydrated lime (dry) with sand or with sand and cement, then add sufficient water to bring mix to hodable consistency. The following proportions by volume are recommended: musoiis iiwiEs 1 - For common and face clay, shale or sandlime brick in dwellings and similar construction --1 part of lime to 3 parts of sand. 2 - Clay or shale brick in walls and piers below grade continuously exposed to wet or damp condition-- 1 part of lime, 1 part of Portland cement, and 6 parts of sand. 3 - Common and face clay, shale or sandlime brick in exterior walls and piers above grade--2 parts of lime, 1 part of Portland cement, and 9 parts of sand (2.25 cu. ft. of putty per 100 lb. of hydrate; 94 lb. per cu. ft. Portland cement; 80-85 lb. per cu. ft. sand, loose and moist). ADVANTAGES Hydrated Limes are scien tifically slaked by the manufacturer and come to the job ready for mixing and use after soak ing. The advantages of lime mortar for use in brick, tile, or stone masonry are economy, strength, plasticity, and waterproofness. Lime and cement mortar forms a non-shrinking, per manent water and weathertight bond with masonry units and is today advocated by thd best authorities for masonry mortars. 23 * Beg. Trade-mark USGBASOKS QUICKLIMES USE Same as Masons Hydrated Limes, see preceeding page. TYPES Dolomitic from all plants except Farnams, Mass., Evans, Wash., and New Braun fels, Texas, where High Calcium Limes are produced. USG Pulverized Masons Quicklime is shipped in 50-lb. paper bags and 180-lb. net steel drums. USG Pebble Masons Quicklime, USG Crushed Masons Quicklime, and USG Masons Lump Lime are shipped in 180-lb. net wood barrels or steel drums. All brands of Masons Lime from Genoa can be shipped in bulk. BRANDS AND PACKAGES USG Masons Quicklimes are shipped from the various mills under brands in containers as follows: FARNAMS, MASS. USG Superfine Masons Quicklime USG Pulverized Masons Quicklime USG Fine Grained Masons Quicklime USG Lump Lime All quicklimes from Farnams except USG Lump Lime are shipped in 80-lb. paper bags; 180-lb. net and 280-lb. net wood barrels or steel drums. All brands including USG Lump Lime can be shipped in bulk. GENOA, OHIO USG Pulverized Masons Quicklime USG Pebble Masons Quicklime USG Crushed Masons Quicklime USG Masons Lump Lime CORDOVA, ILLINOIS USG Crushed Masons Quicklime USG Pebble Masons Quicklime USG Lump Lime All brands of Masons Lime irom Cordova are shipped in 180-lb. net steel drums or bulk. NEW BRAUNFELS, TEXAS Dittlinger Peerless Pulverized Masons Quicklime Dittlinger Peerless Crushed Masons Quicklime Dittlinger Lump Lime Dittlinger Peerless Pulverized Masons is ship ped in 50-lb. and 100-lb. paper bags and 180lb. net steel drums. Dittlinger Peerless Crushed Masons Quick lime is shipped in 100-lb. paper bags and 180lb. net wood barrels or steel drums. Dittlinger Lump is shipped in 180-lb. net steel drums. All above brands may be shipped in bulk. EVANS, WASHINGTON Marble Rock Lump Lime is shipped in 90-lb. waterproof, paper-lined cloth bags, known as Calsax, and in barrels and drums; Pulverized is shipped in 60-lb. paper bags; also in bulk. SLAKING Add water and lime gradually while mixing, constantly agitating mixture to prevent burning of unslaked portion. Mix to a thin consistency and screen through a quarterinch mesh screen. AGING After screening, run mixture into aging box. Lime must be aged until it is cool and the putty is hodable. Lime putty produced from quicklime should never be used until aged at least one week. A longer time is preferable - to assure complete slaking. 5 MIXING See preceeding page. \ ADVANTAGES While quicklimes must be thoroughly slaked and aged before use, wher. compared to the preslaked hydrated limes, they have the advantage of a greater putty yield, ton for ton. They have the same ad vantages as hydrated limes for brick and masonry work and for use with Portland cement. 24 PYROBAR PARTITION TILE USE Pyiobar Partition Tile are pre-cast gyp sum tile for use as non-bearing partitions and for furring. They consist of 97% gypsum and 3% special wood fiber, moulded in steel moulds by a process that insures accurate proportions, and uniform size, weight, strength and density. ADVANTAGES The large, uniform units are much easier and therefore cheaper to erect than other masonry partition units. Straight edges and true faces insure, a perfectly even, true wall that takes a minimum of plaster. Exper ience shows that plastering on Pyrobar Tile saves as much as 20% of plaster as compared to other masonry surfaces. Pyrobar* is economical to use. Breakage is almost negligible. Cutting around openings and pipes does not cause waste as all the pieces can be used. Ordinarily from 5 to 7% less Pyrobar Tile is required for a job than clay tile. Alterations in the partitions are easily made after completion of the building. Additional openings in Pyrobar walls may be cut with a saw, saving replastering, patching, and time. FIREPROOF Because made of gypsum, Pyro bar tile are fireproof. Gypsum tile alone have pass ed the Underwriters' requirements for fireproof partitions. Gypsum complies better with the essential of the ideal fireproofing than any other commonly used material. These essentials are: 1 -Incombustibility. 2-Protection of framing against high temper ature. 3-Refusal to expand sufficiently to spall off and expose the steel. 4-Maintenance of these qualities for the dur ation of the fire. . SET FAST CEMENT A specially pre pared gypsum cement used with water and sand as a mortar for setting gypsum partition tile and gypsum fireproofing and column covering. Also used as a mortar for interior clay tile partitions. Shipped in 100-pound paper bags. * CEMENT PLASTER -* WOOD FIBER PLASTER * GAUGING PLASTER . * "FINISHING LIME * MASONS LIME -KEENE'S CEMENT -$ METAL LATH PRODUCTS 5 METAL LATH ACCESSORIES BOCKLATH.THE FffiEPBOOF lATH * INSULATING HOCKLATH -WEATHERWOOD LATH TROWEL FINISHES FLOAT FINISHES if Makes weight in mixed cars to most destinations. Takes LCL rate vrhen included in mixed car but saves extra Hauling. Sizes and Weights cf Pyiobar Partition Tile Size, Inches Recom- Heights lor each Site Weight of Tile per Sq. Ft., Lb. MortarRequirements per 1,000 Sq. Ft. Pounds Set Fast Cement Cubic Yds. Sand 2x12x30 Solid 3x12x30 Hollow 3x12x30 Solid 4x12x30 Hollow 5x12x30 Hollow 6x12x30 Hollow 10 ieet* 13 feet* 15 leetf 17 ieet* 20 feet* 30 feet* 9.4 9.9 13.0 13.0 15.6 16.6 600 800 800 900 1000 1100 0.75 1.00 1.00 1.125 1.25 1.40 `Underwriters' Laboratories Recommendation. fNo Underwriters' Recommendation. * Reg. Trademark 25