Document ppQnXX7doQVj3qeRrwjEop95B

I, TECHNICAL INFORMATION RED TOP* F1REC0DE PLASTER 101 IV O cO RED TOP gTmvni FIRECODE PLASTER Description '* Res Top Firecode Plaster is a ready-tivus* gypsum piaster lor jpraying directly to steel floor units, beams and columns, to provide fire protection.. It is lightweight, requires no lathing, bonding agents, or band tool operations, and does not shrink on drying. It can also be applied over metal lath to provide a fire resistive enclosure around structural members in which piping, ductwork or electrical conduits may be enclosed. Function and Utility Use of this light weight fireproofing plaster in multi-story buildings to replace the heavy masonry or concrete formerly used to protect the steel structure greatly reduces the dead load and enables the designing engineer to use substantially Kjhier, less costly steel members. This new concept in building design is not only lower in cost, but provides increased flexi bility in design, beauty, utility and safety. Red Tor Firecode Plaster provides fire-resistive ratings on all major types of steel floor units, and on steel beams and cnlumns. (See FIRE TEST DATA (or details). Underwriters' Labora tories, Inn, have assigned a favorable Fire Hazard Classifica tion. Guide No. 40 U 8.4H. which meets the requirements of NFPA pamphlet No. 220. UL labels on each bag verify that Red Tor FlXECODE Plaster, 'Type D, Ceraenriaous (cement and plaster) Mixtures", may be used in accordance with con struction details shown in Guide No. 40, t7l8.3, to meet the oublished fire rating. "One coat appiicadon without hand tooling on steel floor units, ar.d only two coat application on beams and columns, as weil as higher fire-retardant efficiency resuldng :n lower material usage, contribute to lower applied fireproofing costs than with other available materials. Although not generally considered a finished surface, a pleasing spray texture can be accomplished. Acoustical Plaster may also be applied as a finish coat. Surface may also be spray painted with TEXOUTE Standard. TECHNICAL DATA --FIRECODE PLASTER Otntify Avence applied dry density......................................... 27#/cu. ft. VIv factor........................................................................ SO FroQwo^cy 1 23 330 300 1000 2000 4000 NRC Soiid AbioretteM .42 .34 .37 .46 .61 .42 .45 Sown4 abk04*pron from rtfi of o naftonaUy fMO^nitd s4idipndAl laboratory. FIRE TEST DATA .J> Fire tests have been conducted, and ratings established on the below.listed constructions. Other tests are in progress, and additional ratings will be established. For details o( additional tests and ratings, refer to the latest publications of Under writers' Laboratories, Inc., or contact your USG representative. SaU: All details are shcrum -- iy$' I`-o' UL OESIGN NO. 10--3 HRS. GUIOE NO. AO UIS-3 GLASS D -- 2 OESIGNS ON CELLULAR STEEL FLOORS Two tests have been conducted using U.L. listed Cellular Steel Floor Units, as shown below; UL DESIGN NO. 33 -- 3 HRS. GUIDE NO. *0 U1IJ CLASS C-- 3 OESIGNS Cdilwlof floor ON CORRUGATED STEEL FLOORS Details of the fire test construction using U.L. listed Corrugated Steel Floor Units, are shown below. UL DESIGN NO'S.. 23 -- 3 HRS.. 3a--3 HRS. JUNCTION fOX--j .~rT~rzz: Collulo' Floor -HtADOt OUCT T\ 5/B- floclfifltd Cillulof Floor t-- CELLULAR otr.K OUTLET SOX Cortv9ofd floo r HLADE* OUCT lt JZ Chairs \ _y" JT ' 1 9/14- Elirlnlird Canwgoiid floor \ 3/4* O 0 M lOK) r 4* * USG GYPSUM PLASTERS ON "blENO SYSTtM" STEEL FLOORS .The details of a fire test on a combination of Cellular and Fluted U.L. listed Steel Floor Units are listed below. W. DESIGN NOS. 14_2 M*S_ IS--2 HIS. ' CUIOC NO. *0 UIIJ CLASS 0 -- 3 OESIGNS i-\nr CONCtETE (SANO-GJAVEl) jL * > ' . OH STCEi. Ul DESIGN NO. 24 -- 3 HRS. {B..m 4 Hr..) CUiDJ HC. 40 UHJ CLASS C--3 DESIGNS - T?- nr conceete (sano-g*aveu -- STEEL ELOO* UNTTS 'A . - ** . ` ' . * * . ` * / * ' * * '* .' . . 4_ ` .* ' #. * . . *. * . -* IL T-'j . p'O/'e- TUTTED SECTION - CELLULA* SECTION I * **BI*rf Jyrt*m " FtW * * I-'- I JUNCTION SOX--t .HEADER DUCT 4* EivctnfiW **8f*d $ytlmM f\mt ON STEEL BEAMS Steel beams have been tested and rated using both the '`Direct'' and "Caged" methods of application. Details of construction and thicknesses required are shown below. Ul DESIGN NO. 33 -- 3 H(S. IS.om 4 hri.) GUIOE NO. 40 UIIJ CLASS C -- 3 OESICNS 2-1 nr CCNOtETE (SanO-GEaveu STEEL FLCOa UNITS The above tests were run to the four hour limit, based on the ability of the beams to sustain their design load. When beam protection requirements are based on the steel temperature criterion, tbe average thicknesses shown below should be used. UL DESIGN NO. 14 -- 2 H*S. (&m 4 hft.) GUIOC NO. 40 U1 4.3 CLASS 0 -- 3 DESIGNS . 1 H* t.d.l **Cogd** Method UL 0ES1GN NO. IS --2 HRS. (B*om 4 hn.) GUIDE NO. 40 UIU CLASS 0 -- 2 DESIGNS 2'/t* virg Mihod N.i.: When 3 hour ratings based on tbe steel temperature criterion are required, refer to UL Design No 3 --3 hrs (Beam 4 hrs.l and No. 24--3 hrs (Beam 4 bra.) ' ON STEEL COLUMNS Steel Columns may be protected from the effects o( fire with Firecode Piaster applied directly to the column without lathing. However, il the surface o( the plastered columns are sub;ec: to contact, they should be protected bv i suitable enclosure. Fire tests have been conducted, and ' two ratines e*uoissned. * Ul OESIGN NO. --3 HRS. GUIDE NO. 40 U 11.3 CLASS C -- 3 OESIGNS UL OESIGN NO. --4 HRS. GUIDE NO. 4 U 11.3 ClASS 4--4 OESIGNS G 0 '.l 1 0 1? TM. i*g, U.S. tat. Off UNITED STATES GYPSUM SPECIFICATIONS FiRcrRGOflNG PIASTER. - Scope. RED TOP FIRECODE Plaster shall be applied . . directly to the underside of all steel floor units, and to beams and columns as herein described. b. Materials. Fireproofing Plaster shall be RED TOP FIRECODE Plaster as manufactured by the U. S. Gypsum Company. c. Grounds. Thicknesses shall be measured following the contour of steel floor units, beams and columns, or from the face of metal lath on caged beams. Thick nesses shall be as specified oo the plans to adora the required fire protection. d. Surface Preparation. All surfaces shall be clean, dry and free from oil and grease. e. Mixing. RED TOP FIRECODE Plaster shall be machine mixed. The plaster shall be added to 35--40 quarts of water per 50/ bag while the mixer is running. Mix for 4-7 minutes, depending on the speed of the mixer. Application. RED TOP FIRECODE Plaster shall be spray applied with any basecoat plastering machine, using medium output with high atomizing air pressure and a small enough nozzle orifice to obtain a narrow uniiorm spray pattern. For steel floor units, the nozzle should be held 3' to 4' from the surface, and moved uniformly along the valleys and ribs in such a manner that the required thickness is applied as uniformly as possible. For direct application to steel beams and columns, and on metal lath used for caging beams, a first coat of to Y' thickness shall be applied, allowed to set and partially dry. A second coat to bring the plaster out to the required thickness shall then be applied. The finished surface shall be left with a spray finish following the contours of the base. If desired, however, the surface may be rodded, darbied. or trowelled. S TATI* m2 ii mt UNITED STATES GYPSU M -- The Greatest Nome in Building GENERAL OFFICES 300 WEST ADAMS STREET CHICAGO B. IlllNOIS U. S. C. SALES OFFICES LOCATED AT THESE CITIES ALBANY, N T. albuquerque. nm. ARLINGTON. VA. (Washington, d.cj ATLANTA. GA. BALTIMORE. MO. BIRMINGHAM. ALA. BUFFALO. N.r. charlotte, n.c CHICAGO. ILL CINCINNATI. OHIO CIEVELANO HEIGHTS. OHIO ICIEVELANO) CLIFTON. NJ. INEWarX) OalIaS, TOLAS DENVER. COLO. 0E WITT, N.T. (STRaCUSEI GRANO RAPIDS, MICH. Hamden. CCnn. (NEW HAVENI Harrisburg, pa. HtMPSTEAO, U_ N.T. HOHOKUS. NJ.' HOUSTON. TEXAS INDIANAPOLIS. INO. JACKSONVILLE. FLA. Kansas crrr. mo. LOS ANGELES. CALIF. LOUISVILLE. XT. MIAMI, FLORJOA MILWAUKEE. WISC MINNEAPOLIS. MINN. NEW ORLEANS. LA. NEW YORK. N.T. OKLAHOMA CITY. OKLA OMAHA. NESR. PASAOENA, CAUF. peosia. ill PHILADELPHIA, PA. phoenix, ariz. PITTSBURGH, PA. PORTLAND. ORE. RALEIGH. N.C RICHMOND. VA. SaCRaMENIO. CAUF. SI. LOUIS. MO. salt lake crrr. utam San ANTONIO. TEXaS San OlFGO. CauF. San FRANCISCO. Calif. San iEanorO. CauF. (Oarlanoi SCaRSOaIE. N.T. inew york erm SEATTLE. WASH. SOUTHFIELD. MICK. IOETROTTI Waltham, mass. isostcni waswiCK. RJ. [PROVioLnCEI C~l O G CD r j ( f f; i finish requiring no further decoration. Concrete Finish is Reo Top and Grand Prize* Normal Hyd,i, r . , applied only to surfaces which have first been treated with Lime--Hydrate lime which requires .seating it Rio Top Plaster Bond, a liquid agent that provides bend to develop proper plasticity and the degree .VfV ! ing strength greater than the tensile strength of the plaster. It necessary prior to use. Complies with ASTM t r, i ' bonds gypsum plaster, or gauged lime putty, directly to and Federal Specification SS-L-151, Type F. ' `rc v interior monolithic concrete ceilings, walls, beams, columns and soffits--also to masonry surfaces and gypsum plaster Red Top Finish Quicklime--High calcium finish:** basecoats. Limitation: when a gauged finish Lime putty coat which requires 16 hours of soaking to develop * is applied direct to Rjed Top Plaster Bond, a Type S or Type N plasticity and the required degree of hydration prior ` Dolomiiic Finish Lime must be used. Complies with ASTM GS and Federal Specification \s ,_i : <, gauging plasters (for blending with lime putty) Structo-Gauge--A high-strength gypsum gauging plaster, which provides the greatest hardness and resistance to surface abrasion. Complies with ASTM C-23 and Federal Specifica tion SS-P-A02, with the added requirement of 5000 psL * RED Top Keenes Cement--A dead burned gypsum gaug ing. which requires extensive troweling. This troweling densi ties the surface for hardness and resistance to surface abrasion. Complies with ASTM C-61 and Federal Specification SS-C-161 Type I (Regular), II (Quick Troweling). Champion* and Star* White Gauging Plaster--These conventional quick and slow set gauging plasters comply with ASTM C-2S and Federal Specification SS-P^402, Type G. Red Top Gauging Piaster--Similar to Champion and Star Gauging except it comes in a slightly darker color. Complies with ASTM C-28 and Federal Specification SS-P-J02, Type G. finishing limes - -v ory* Double Hydrated Finishing Lime--A 9215 hyated finishing lime. Does not require soaking, and virtually .minates the possibility of future expansion within the finish coat because of unhydrated magnesium, oxides. Complies with ASTM C-206, Type S, and Federal Specification SS-L251, Type F (not more than 8f? unhydrated oxides). thin coat piasters Imperial Plaster-Hand Tool Application F>--h v new product designed to save days in plao.-r .---- r . ...} ules. Applied to thickness of K to .`fi inch wulx _..<s and immediate doubling back with finish ccat. Mu ^ ^ with a special gypsum Im?ejual Plaster Base. uljcvrirr i.:* and special comer bead. May be applied cith-r av -.-t...** trowel or float finish; requires only the addition i.f .v-* water. When applied on special.Type X Piaster Rave <v.r- ;a* wood framing, ottains U/L fire ratings of up to 2 Scwurv i'r 2-layer construaion). Applied cost averages onlv above conventional drywall cost. Other uses- nuv s, employed as a hand-applied basecoat to receive a .rv.r-- tional plaster finish, or as a finish plaster over c.-rv-; ''> or concrete treated with Rid Top Plaster Bond. n.y : Catalog f-1865 for other components. Imperial Plaster--Machine Application B**'c*l Used where exceptionally high strength and anra-. -- *i ance are desired, machine spray-applied in a paten-ei: -.rn as a basecoat, covered with a conventional lime ruin : ~ -v of either Structo-Galce and USG Finish 1 imc. or v.^-.-.i Finish Lime in a sand float finish. Imperial Plaster--Machine Application Finish- t jvJ where exceptionally high strength and apraiion revi-ijr-.e ure description ORIENTAL Interior Stucco STRUCTO-GAUGE and Lime Putty I | STRUCTO-GAUGE and lime Puffy Keenes Cement and lime Putty keenes Cemenl and lime Puffy Gypsum Gauged Lame Putty Xeenes Cement lime Putty and Sand Gypsum Ciugm; * .utty and .ML ratec.of Stucco imperial Planers ` application data--USG Finish Coat Plasters finish texture White float or Texture fimsn White ' Trowel Smoolh phyi'al progenies .Hard and Resixtant to Abrasion Extremely Hard and Rexixunt to Abrasion proportion by ' dry weight gauging to lime Heat 1:1 workability factor 1 2 * esmmera Available in wnite. Mill sseffsl X aggregale. site and orc-ixrrtiom.vi Use for handball courts and psychooainic wards e.er a -aod fiber or STRl'CTO-BASE baseccvi! ' iC' j ; : .. White Trowel Smooth White Trowel Smooth White Trowel Smooth White Trowel Smooth Hard and Resixtant to Abrasion Hard and Resistant to Abrasion Medium Hard & Resistant to Abrasion SUndatd White float finish Hard Standard Co/oted float or Texture finish Trowel Smooth or float fimsn I | ! I | fzlremely Hard and Resistant to ADrasion Hard and Resistant to Abrasion 1 -2 Cl 2:1 1-2 . 50 lbs. Keenes 100 lbs. Lime <00 lbs Sand 50 lbs. Gauging 100 lbs. Lime <00 lbs. Sand Neat Heal l Use for hospitals and schools ovrr i . ;7? wood liber or sanded gy;sun fis-.j\ ; 7 Use (or handball courts ar.d > psychopathic wards oxer a <f ' fiber basecoat. ____ < . Use lor hcspilal: and schoo'i c--* a . .*3 wood fitser or sanded gypsum tivx-- __ ! frx normal use; over ligniwe-g-t *" aggregate basecoat add V4 cu. n. ; Perlite lines or 50 lbs. ol /l ; sand per tCOf ?ugmL ______ 1 I Commonly used lloal finish, max J * t> satisfactorily coioted. ; 1 for normal use oxer any basecoaL ;' | 1 for use over a Portland cemenl ., v lime basecoal Available m and 6 colors. ' ... - ' 1 for use Over a specu1 IM.-tCAl Planer ease. Ho trsuueu --- r j i '/ft m USG 7 3J Gypsum Plasters *' . jpray-applied in a patented process. Uses are (1) as a finish in two iu` coats over special Imperial piaster > ujc. or (2) as a in' textured finish over Imperial case after ' **' beads have been speckled and joints treated with Perf-Ajj'jf Rbnforcemcnt and Ready-Mixed Perp-A-Tape Joint Caspouad. . .J When stippled, Hi-Lite exhibits outstanding sound absorption characteristics at the lower frequencies. U may be re decorated v-ith up to four coats of spray-applied USG Texolite* Standard Paint without appreciably reducing sound characteristics; may be cleaned with low-pressure vacuum cleaner using a soft brush attachment. UK ' ..'^ Acoustical Plasters ` L'cred States Gypsum manufactures cwo types of soundi*joroing. decorative finish acoustical plasters--Hi-Lite* and ^-tsccrTE*. Each has certain characteristics which influence i- -ia ecsectioo. The following tables compare their light reflect " cssulatioa, aaa sound-absorption values. . *-UTE > JCHCOTE finish Stippled StipplePertorated Machine Textured ' ` light reflectance percent(1) JO J7 Satin White | .65 Special White 1 .70 neat insulation "V (actor (2) iO 30 7WK2TE finish Stapled Stiooie-PenarateO Macrune Tenure sound aOsorption frequencies at cycles shown (31 arc 125 | 260 | 520 110001200011000 .11 1 .26 | .65 1 .78 ( M | .65 .20 | .24 i .60 j .76 I .63 j .76 .26 l .23 i .53 I .67 i .73 1 .60 .50 .60 .55 cat drtj ioov r in* faults of Las oo (totmtiUift* ocnHt. It is not l4r to nfirtT* Cieu rest*Its m ir* litld. Cift most Utm to mu IM matcnii O caciatrw^s 4d 4D0irt to uiularmir lull (rcwftdi.il> Li(M rtllactmct (torn ttsu rcDtnart iioonlorr.(Z1 Hul iqu.ui>oo CjU uom ita ilUSu Scjc-uca U) $art i&Mtpboa Irom sUruLtrt less si * racoituirt UMratory. rb-CrrE Acoustical Ptaster is pure white with excellent 'w'-v-Ssrit reflective characteristics, malting it particularly .tdapta- X for use in schools and office buildings where light reflect- ' Ffoe and emdeocy of illumination are important considera- tbos. Its relatively high moisture resistance makes it an exedchoice for acoustical treatment in natatoriuins and other Vrif'.'.,6** in which high humidities are anticipated. Hi-Lite fl'IdV' '`"ixtsticil Plaster is not subject to the migration of rust stains . iracn trie construction over which it is applied. tray be applied over properly prepared gypsum plaster or .'jhvT.-.v;.'^arLland ceme-at-lime piaster basecoats; develops a harder >'^^IV'.'fcidied surface ihnn many acoustical materials. - Limitations: (1) Hi-Lite.must be machine mixed in strict accordance with directions to develop proper density and working qualities; (2) Hj-Lite may be machine applied, but published sound absorption coefficients do not apply unless hand applied and finished in accordance with specifications; (3) more durable than most acoustical materials, but is designed for use on ceilings or wall areas not subject to con tact; (4) when perforated, a special perforator with rustresistant prongs should be used; (5) not recommended for use cv-r radiant heating installations; (6) not recommended for direct application to monolithic concrete surfaces. AuotcoTE Acoustical Plaster is a low-cost acoustical material designed for either modern efficient machine applica tion or conventional hand application methods over a wide range of surfaces. It can be applied over properly prepared gypsum or Portland cement basecoats, monolithic concrete, prefabricated concrete units. . The uniform texture resulting from spray application makes . ' Audicote particularly suitable for use on large continuous . ceiling areas. Through modifications of machine procedures and spray techniques, many pleasing textures are possible. Audicote is readily adaptable to tinting, and incorporation of special aggregates to further increase the design and d:co- rativc possibilities. Few other acoustical products present the designer with the flexibility and adaptability of Audicote . Acoustical Plaster. . It may be redecorated v/ith up to two coats of spray-applied USG TExoLrTE Standard Paint with no significant loss in Noise Reduction Coemcient. Up to four coats result in only a minor reduction in sound absorption characteristics. It may be economically refinished with a spray coat of Audicote. Available in Satin White and Special White colors; may also be tinted on the job. . Limitations: (l) Audicote is designed for use on ceiling and wall areas not subject to contact, excessive vibration or high moisture; (2) precautions must be taken under certain circum- ' stances to prevent the migration of water-borne stains to the surface of Audicote (see Specifications); (3) not recommended for use over radiant heating installations. ~v-" -*< "'hA__.-T:'-' &' - - v .. i.. .r . b -r *" ' yj., HL-U TE, Shpplo-? shoniod Finish i' genera! plastering specifications 4- Fireproofing Plaster rttciTop Fikecode* "V" Plaster is a rcady-to-use gypsum 1. *cop--Unless otherwise shown on the draw:i<, ceilings shall be plastered as herein described. " plaster for spraying directly to steel floor units, beams and It. general provisions--Tn cold weather, the ten-tv . _ columns, to provide fire protection. It is lightweight and building shall be maintained in the uniform ranee .n,, e " i' non-shrinking, requiring the addition of water only. No bonding agents, lathing or hand tool operations are required in application. It can also be applied over metal lath to form a fire-resistive enclosure containing structural members, piping, ductwork or electrical conduits. an adequate period prior to the applics/i..n <f ,. plastering is being done, and after the plaster is dry ' ', ' be well distributed in all areas, with deflectum or pt!.rv--. 1 used to prevent concentrated or irregular heat on r;l,lrr 7. 1 source. When required, heat snail be furnished hy . . Proper prelection should be provided during pb\i,r.~* , .. Use of this lightweight fireproofing plaster in multi-story door and window frames and other designated area, .' . - receive a plaster finish. buildings in place of the' heavy masonry formerly used to protect the steel structure greatly reduces the dead toad and enables the designing engineer to use substantially lighter, less costly steel members. This new concept in building design is not only lower in applied cost, but provides increased flexi biltty in design, beauty, utility and safety. Ventilation shall be provided lo properly dry '.lie r'j. rr .. subsequent to its application, in glared rud.lines accomplished by keeping windows open v<t:r.icr.i;>- ,\- circulatton: in enclosed areas lacking normal ver.td.iit.-n. ;... must be made to mechanically remove moiMure-l.idrn ,i i If glazed sash arenot in place and the building is uhrrv-d , Red Top Fwecode "V** Plaster provides fire-resistive ratings dry winds or temperature differentials from day tp . < -. , more, opening shall be screened with cheesecloth or similar on all major types of steel floor units, and on steel beams and columns; meets requirements of NFPA pamphlet No. 220 and 111. surface preparation Guide No. 40, U-18.3. For fire resistance, sound absorption, a. Monolithic concrete to which (Bondc*m; .H .. i ? -- density and insulation characteristics, see USG Folder d-1745. Bond) is to be applied shall be free of dm. dud other unsound surface conditions. Laitance ana . , ... be chemically removed. (iVith Bo-socritf, ..mv.-cie . Red Top Firecode "V" also protects shop-primbd steel from be sufficiently roughened to provide proper N-r: l * corrosion and eliminates the need for a job primer coat. b. Monolithic or unit masonry surfaces that csn.-Vi: r , r. , .. may be moderately wetted immediately before pljv-.cr.-.; Although not generally considered a finished surface, a Z' tsing spray texture can be accomplished. Acoustical Plaster . be applied as a finish coat; or. the Firecode "V" surface / be spray-painted with USG Texoute Standard Paint. c. Where Red Tor Auoicote Acoustical Plaster is ; application direct to smooth monolithic concrete. r.-,.ii...,-. - chair legs shall be cither galsanized or cssaicd -,in r_.i r..\ paint, and use of nails or other raw steel agaiust f.icrrs .r < concrete held to a minimum. Where meul is rspo-eJ m i.-- r -cjmitarions: (1) Red Top Firecode "V" Plaster must be applied under conditions acceptable to plastering--protected from freezing; (2) it is designed for use on ceilings, beams or ' these precautions, and where Audioo-ti is to be arri.-l dir. ' against comer beads or other meul accessories, the mr'ai . * be treated with one coat of aluminum paint. columns not subject to contact, excessive high humidity, or . IV. ground*--Plaster thicknesses shall be as -h.i-.i r- , vibration. however, in no case shall the grounds be less than: USG Metal Lath--(from face of lath) Rooxath Plaster Base--vfi' Long Length Rocklath--Hi* __ Pyrobar Par.nioo Tile or other Masonry L'nits-- Monolithic Concrete Ceuinga--'A' ( maximum I Monolithic Concrete Walls--<A" maximum) Imreimai. Plasters--Hi" to >A" _ Hi-Ltn or Audicote Acoustical Plaster--(over c<.,r\ r.-:c; (over gypsum or metal lath) -' V. material*--Plaster and aD ermeoritious material shall be uqdff cover, up off the ground or floor, and Ucc' Jrv until i r-- ' use. All matenais herein specified shall be manufactured m Umtcd States Grrsuw Cowtanv. *. Basecoat Plaster shall be: (Ttructo-BaSE Cement Ptjxir.: * Tor Wood FibeT) (Red Tor Cement Plaster) lb'*" (BONDCRETE). b. Aggregate shall be: (Sand) (Perlite) meeting ASTM C-" ments. Sand for float finishes shall be a graded silw^ tanw r*"' a (jO mesh) (20 mesh) screen. . e. Wster shall be clean and fit to drink, free from oiL avid. . ah vegeuble materials. 4. Bonding Agent shall be: Rjed Tor Plaster Bond. e. Finish Lime shall be: (Ivo*r) (Grantj Prin) lRn T,*M C Gausprac Plaster ^haII be' (SrauCTO-GAt'Cf) (Star) (Champion) (Red Tor). "~ < g. Prepared Finish shall be: (Or(Tvtal Interior W hi'c I 1 Tor Concrtic Finish). a* Ja.iim USG Gypsum Plasters v .It___Plaster shall be: (Hi-Lot) (Audicote). I pterer Ornaments and Mouldings shall be made with Rio Tor jSicuklmiJ pasting) Plaster. j, [rvttriof Stneoo Finish shall be: Oriental Exterior Stucco. yj. grouting--Grout shall consist of Structo-Ute or Red Tor Ccaamt Plaster sanded 100:2. ' u steel door frames in solid plaster and steel stud partitions jfoil be grouted prior to lathing. ^ metal base shall be grouted. *m yn_ basecoat proportion*--Basecoat plasters shall be mixed to rrov'de compressive strength of______psi--dry (specify from acrmxai data, page 2). VIII. mixing ol basecoat--Basecoat plasters may be hand mixed V re nchanically mixed to a uniform consistency following the \ tooufacrurcr's directions. i. ' ' fZ. basecoat application--All plaster basecoat shall be applied ; by tOand) trruchine) in (2) (3) coats (see description, page 1). ."a. Two-coet wort: Over gypsum lath and masonry, the btse (first) ; 't=at shall 6c applied with sufficient material and pressure to form a v-md to the base and to cover well, and then be doubled hack the plaster out to grounds, straightened to a true surface \ j and darby without the use of additional water, and left , to receive the finish (second) coat. 4. Resilient RocrLath Plaster Base Ceiling: Use tnrec-<.uiC method I only, allowing the scratch coat to set and partially dry before applying brown cuat. _ 5. Brace-Tite* System Ceiling: The thrre-coat method is recom mended. If the two-coal system is used, a minimum of 20 minutes must be allowed before doubling back and the setting time of the basecoat must not exceed 3 hours. -^.6. Monolithic Concrete: (l) Surfaces of wails and columns shall have a scratch coat of BONOOtrrr. followed immediately with a brown coat of Red Tor Cement Piaster and sand 100:2 troweled into the Bonocrete while it is soft and unset. Brown coal shall be brought out to a true level surface without an application of w-atcr. Cross-rake the surface. Ceiling surfaces' shall have a coal of Bonocrete scratched in thoroughly, doubled back to a true level surface. Cross-rake the surface. (2) Rid Tor Plaster Bond shall be applied to concrete surface in a thin continuous film, when temperatures am SO' F. ox above. Basecoat plasters or Red Tor Concrete Finish shall be applied w hen film is slightly tacky or within two weeks. (Red Tor Concrete Finish shall be applied over Rtd Tor Plaster Bond after pre-soaking up to one wk prior to use. Fill and leveling coats of Concrete Finish shall be gauged sufficiently with Red Tor Gauging to permit immediate doubling back and firm grinding of a thin cost into the Plaster Bond. Immediately double back wuh a "sweetening coat" to level the surface: draw up finish taut and level by troweling!. (Sand Float finish--add up to 20 lbs. of sand per bag of Red Tor . Concrete Finish, gauge approximately I JfS by weight, and allow to stiffen prior to floating.) (Smooth Trowel finish--use 15S to 20% slow t gauging, mix to fairly stiff consistency, apply and trowel in same manner as with regular lime putty finish. TVee-co*t work: Tbe scratch (first) coat shall be applied with sotfirxnt material and pressure to form good full keys on metal e .-tetL snd a good bond on other bases, and then be cross-raked. The '/ brown (second) coat shall be applied after the scratch (first) coal baa act firm and hard, brought out to grounds and straightened to a Pm surface with rod and darby without the use of additional water, 4: xad lift rough to receive the finish (third) coat. k. Optional Locloxioea: . L Solid Lang Length Rocklath* Partition: The scratch coal shall A-* be applied A* thick, with a maximum set of 3 hours, 10 each side of Use lath, both sides to be scratch coated within a 3-hour interval, v/v Cross-rake lightly in horironiai direction only. The brown coat J: sfafl be applied to the unbraced side after the scratch coats have 2V, .xs ind partially dried (not less than 16 hours). After brown coat tel firmly (not less than 3 hours), carefully remove the braces Vs..''2nd brown coat the second side. Brown coal shall be brought out true plane and left rough. iC.r-JL Solid Studless Metal Lath Partition: The scratch coat, shall be AJi-jiRppfjed to the side opposite the bracing, and allowed to set and ^ff'.ptrtjally dry. The brown coat shall ihea be applied to the side CTVocne the braces, allowing it to sci thoroughly before removing TgZp'^wrary braces. Next the brown coat shall be applied to previously ^eaced side to bring the plaster out to grounds, straightened to a true surfixr with rod and darby without the use of additional water, '''Tf;. *d left rough to receive the finish coat. `CrJ.'l A//... > I- ' Solid Channel Stud Metal Lath Partition: The scratch coat shall : cplied to lath side and allowed to set and partially dry. The --up cent shall then be applied to the channel side to full 1 v^nds. 0ver channels, in not less than two operations aod * u't~ "^'e brown coat on lath side shall then be applied to ^~oL'''rrrt * out (O grounds, straightened to a true surface wuh VtiLi.', ^ t^rby without the use of additional water, and left rough to khc finish coat. ' 7. Portland Cemens 3asecaass shall be applied in two coats. Scratch coat shall be cross-raked and after setting damp cured for not less than 43 hours. Brown coal shad be damp cured after setting for not less than 43 hours. 8. U'vrr plaster is flash with metal base, metal door frames. etc_ a groove shall be made at the junction to reduce the possibility of chipping. Basecoat plaster shall be cut free from these metal sections before the plaster sets. _ X. preparation of lima a. Iror-y Lime snail be mixed with approximately 5'A to 6 gallons of water for each 50 lb. bag. Machine mix or box soak for immediate use, or may soak overrule. b. CraND PRIZE of Red Tor Lime shall be box soaked or machine mixed using approximately 6 gallons of water per 50 lb. bag, and allowed to soak for 16 hours. XI. proportion* of finih coal*--Finish coat plasters shall be mixed in proportion by dry weight of------- pans of gauging to_____ parts of lime (specify from Application Dau. page 4), according to the manufacturer's directions. Over lightweight aggregate hasecoats. ft 01. ft. of perlite fines or 50 lbs. of No. 1 silica sand per 100 lbs. of gauging plaster shall be added, or aggregated gauging shall be used. XII. application of flnlih coal* a. Trowel Finish Coats shall be scratched in thoroughly and im mediately doubled back to fill out to a smooth, dense surface for decoration free of surface blemishes and irregularities. Thictncss shall be !-4' to ft'. Keencs Cement Finishes shall be troweied unul tbe material sets. ' T" ..... . " \ - ; V-; |-y a.-xsKvrc'CLrC;;,'.: - UKITED STATES GYPSLIU pags 7 HM USG r~ <3 | Gypsum Plasters ' iHfl 3-------- b. Float Finish Co*ts shall be scratched in thoroughly and im mediately doubled back to a true, even surface. Float using a (shingle) (cork) (wood) (carpet) or (rubber) float to bring aggregate to the surface to produce a finish of uniform texture free of slick spots, cal faces, and other blemishes. Use water sparingly in natural color, and no water shall be used on colored finishes. e. Machine Applied Spray Finishes shall be uniformly applied to produce a texture approved by the architect. d. Imperial Plaster Hand Tool Application Finish shall be hand applied in tight, thin first coat to embed tape and fill beads; then tight, thin scratch coat and immediate double-back coat to a thickness of from Idi* to in accordance with the manufacturer's directions. Over cement block. Imperial Plaster shall be properly - sanded for fill and scratch coals; after sufficient take-up of fill coat has occurred, scratch coat shall be applied, left rough and allowed to set and dry; then seat finish coat shall be appLied (sand added only if sand finish is desired), all in accordance with manufac turer's directions. . e. Imperial Plaster Machine Application Bascexat or Finish shall be machine appLied to a thickness of 55*', in accordance with the manufacturer's directions. L Acoustical Plasters shall be applied in not lessVjin two coats, to full (4' grounds, following the manufacturer's directions. -- g_ Ornamental Plastering: Ornamental plaster shall be executed in ccordance with the full-sized details shown on the drawings, x Jomiccs and moldings shall be run full, straight and true with I*. S* molding plaster, using dean cut metal templen ___ 4 profiles shown on the drawing. Lines shall be '_ true intersections, and accurate miters at ccivn j-vJ Enriched ornamental work which cannot be ran cast with Red Top Casting Plaster in gelatine mc-kx l -< be solidly backed with jute or burlap, shall be pii-;vr!v - -> with galvanized steel, and shall be securely stuck. a::j , with copper wires not lighter than 16 gauge. Vi .>. ,, carefully made and neatly pointed so as to be sa .__ spots shall be eliminated with tine sandpaper, irvvi :S< left in proper condition, ready for decoration. ` '' XIII. fireproofing plaatef--Red Top Fixtri-a . ,, manufactured by the United States Csnstvi t' -- rm y*-*a s* . machine applied to the underside of ail vxel ' and columns as shown on plans or herein >rec::'cJ. i.\i .V; mixed and appLied according to tf-e .Tunufacturr: ' (see USG Folder d-1745). XIV. patching--Point up around trim and other work. Cat --* and patch defective and damaged plaster. Putchint wa match existing work in texture and finish ind loir.r^ in previously applied shall finish flush and smooth. XV. completion--At the completion cf the - -s all plaster shall be cleaned from beds, vereeds, .-ne'.xi V.v<e i trial. leaving work ready for decoration Sy .ye--i v.- ,__ rubbish shall be removed from the building. lew.hz * rt* clean. Excess material, scaffolding, tools and ct.ncr rr__ttwtsc o--s be removed from the building and job site. TRADEMARKS; The following trademarks are owned and/or registered in !he U.S. Patent Office by United Staten Giosm and are used thraugnoul this catalog to designate particular products manufactured by that comoany: USG. SEO TOP S7RLC70 L "* 80NDCRETE. ORIENTAL FIRECODE. IMPERIAL IVORY, GRAND PRIZE. CHAMPION, STAR. HI-LITE. AUOICOTt (clastir-g PYROBAR (gypsum partition tile); ROCXLATH (plaster base); MORTASEAl (mason's lime); TRUSSTEEL and SRACE-iiTE ~*ui products); TEXOUTEipair.t.products). NOTE; Since methods and mndib'ons of application and use are beyond our control, the United Slates Gypsum Con-pany id .vt responsible for failure of its produca wnen not used according to our direcnons and specifications. U.S.G. SALES Of FICES: ALABAMA; Birmingham. FA 3-7123- ARIZONA : Phoenir, CR *-S*61 CALIF.: Fresno, 223-UT2; Lm Avrws. DU 8-3231: Lea Angeles (So. Calif.), NO 5-5721; San Leandro, LO 9-3020; Sacramento, Gt 3-19S9: San Oiego, 755-5191 CCLO : Denver, 383-6301 CONN.; Hamden. 2S8-1S7 - FLORIDA: Jacksonville. 359-1628: North Miami. PL *-1553 GEORGIA: Ara-m*. 231-3180 - ILLINOIS: Chicago, 321-5795; Elmhurst. 321-UOO; Peoria. 522-5*78 - INDIANA: Indianapolis. U 6-* 775- KENT'JC k T : --Looisville. TW 5-9478- LOUISIANA: New Orleans. 822-W3Z- MARYLAND; Baltimore, OR 7-3001 MASSACHUSETTS: wi--j->. TYf *-2150- MICHIGAN; Southfield, a 7-2000; Grand Rapids, GL 5-8611* MINNESOTA: Minneapolis. WA 7-9911 MISSOURI: Gry. WE 1-I3S3; Clayton, PA 1-1133- NE3RASXA: Omaha. 551-5165 - NEW JERSEY: Clifton, GR 2-3900; Wayne. OX I-2AV- if * MEXICO: Afbuauerpue, AM 8-2*57- HEW YORK; Albany, IV 9-2559; Buffalo. TL *-3*27; De Witt. G1 6-1291; Hempsetd. IV 3 New York, PL 9-65SQ; Sarsdale, GR 2-tUAO- NORTH CAROLINA: Charlotte, 232-5023; Raleigh, VA 8- 5**1 OHIO: Cincnr.in.96! LO. Cleveland Heights. FA l-*l*l; Columbus, 257-0316 - OKLAHOMA: OkUhoma City. JA 5-66*5- 0REC0N: PorSand. CA PEHh'A.: Harrisburg.234-3251; Bryn Mawr.LA. 5-7500; Prrtsiuigh,551-*600 - RHODE ISLAND ; Warwick,RE 7-1100 TENN.: M-rr- phis.32*-3756; Nashville.25A-1922 TEXAS: Dallas.FL 1-S33S; Houston.JA *-7U8; San Antomo.TA *-*53* UTAH ; Sail Lik* C x a 9-3751 - VIRGINIA: Arlington, JA 5-3300; Richmond, 339-WQ8 - WASH.: SeattJe, ME 3-07*5 WISC.: Milwaukee. 8R 6-bi-T. V TEXCUTT*Alkyd Latex Wail Pairil--ready-to-usc Sit finish, offers good quality with economy, combines easy-flowing application of latex paints with fiatness of alkyds. Good onecoat hide can usually be achieved: provides a washable film. ' Uses water for thinning and clean-up. Ailcyd modified styrenebutadiene latex vehicle. 14. ready-mixed colors. Also available: Add-a-Fleck special liquid additives containing gold metal flake or colored enamel fleck to produce sparkling multi-color appearance: added to any color of TAXI paint; for spray application only. Texoute Standard Paint--a low-cost casein flat paint with high light reflection in white, widely used for ceilings. Breather type of paint, docs not seal the surf ace, permits application to relatively new plaster surfaces. When spray-applied, tends to reduce acoustical benefits of ceiling tile the least of available coatings. Self-leveling, cieanable. Protein oleo-resinous vehicle. 10 ready-mixed colors. ' USG Custom Color System: a total of 960 appealing colors are available on special order through dealers using the USG Custom Color System. This range offered in seven products--Gkaso Pxjze* Latex and A Ik;^6 Fiat n ail paints, USG Satin-Lustre and High-Lustre enamels, USG Latex and USG Gloss house paints, and USG Floor '!nt. Ask your U-S.G. representative for a reference copy X le MA-643 Architect Color Styler binder, containing 1 as and samples of 240 chromatically selected colors. V------------------------------------------------------------- 2. Exterior and Masonry Coatings USG Latex House Paint--breather-type acrylic emulsion paint with major advantages over other types: quick-drying, non-yellowing, longer-lasting, best mildew resistance, good bond, pleasing medium lustre. Has excellent hide, controlled chalking. Resistant to alkali, does not readily biister, fade. or stain. Principally for wood siding and shingles, but also performs well over masonry, stucco, weathered asbestos cement. Should be used over USG House Primer on unpainied wood, over USG Penetrating Scalcr on chalky masonry. Can be applied directly over light to medium chalking previously painted surface. Acrylic latex emulsion vehicle. 12 readymixed colors. USG Vinyl Exterior Pairrt--an economical non-penetrating . coating for unglazed masonry, stucco, wood shakes and siding. Combines good hiding, weather resistance, truer non-fading color, quick-drying. Breather-type formulation permits un wanted moisture to escape. Two coats produce best results; on porous or chalky surfaces. USG Penetrating Sealer should first be applied. Emulsified polyvinyl acetate vehicle. 16 rrady- --mixed colors. USG Gloss House Paint--an oil-based product with excellent coverage and hiding: weather-resistant and long- lasting. Bare wood and metal surfaces must be primed. Avail- * in white and tint bases. i ' .ntico * Masonry Coating--a water-repellent hydraulic ' ^-mem base paint in powder form, to be mixed with water. For intenor and exterior porous masonry surfaces. Excels in hardness, durability, binding qualities, and workability.Two coats recommended; sand may be added for coaung-to be scrubbed into masonry to make smoother, denser surface. The . LO colors are light-fast, lirac-proof, alkali-resistant. _ . Dura-Dri* Coating--i heavy-bodied ag,'sntcd mixed with water, to decorate and protect cajie>.i penetration through masonry. Applied in io ecat, r* over Dura-Stop* Compound (see Surface Pirrv.,..a. urns). Four colors; may be ovenroated v.;h t .. ^ . USG Vinyl Exterior Paint for greater color .w Dura-Dri Latex Additive should be ipecuicd u- ; . adhesion, harden surface. USG Latex Floor Paint--a tough, medium shorn interior or exterior floors of previously painted or concrete or wood. Fortified with epoxy resiru for u; ance. Alkaline-resistant, quick-drying, ncrr.-jlly out etching, but firm, noc-dusry surface is roundsur-y '*->*<* and five dark colors, also in tint bases. 3, Interior Texture Finishes USG Texture I--arrady-to-uselatcxerr.uiMo:i.-^ ing a fine aggregate to produce a slight vend comoined with light texnire. One ccat covers blemishes. Quick-drying. 7 ready-mixed colors. .txli ' USG Texture II--flat rippie finish in a Lstcx n--*.- Contains no sharp aggregate, can produce tine textures -e from "orange peel" effect to smooth rounded vnppie. i moderate imperfections, normally requires no eet. (,w drying, washable, recoatabic. 7 ready-mixed coinrv Other paste textures available: USG Trxror* t It. latex drywall surfacer: USG Texture VTIL. dry w-xli rar~rr- USG Texture DC beavy-bodied latex. USG Spray Texture--a powder product for in stipple finishes: gives lowest, most rounded d:rrk -< USG texture and best equalizes surface suction, rvi-w; - * new gypsum board walls. Excellent hardness. ji>vl i ***; ment; must be ovcrpaintcd when dry. Also imbhr " ~ A-----------UJKif,- nnfY. dlireS *'J1Dor,aI Spray Texture--aggregated poster. r*fiTMh 2PP^nce oWoXu-.v p.v.v, - , . corrccuon. Ejtcciicru bonding quul:iio -'** was sunace detects. For best results. rirvt".:.'si . ' *'; Knmcr-Sealer u recommended. Two spray nun- ; v or Coarse. White only ' fry . -**~ *~T^- -^ USG* Pain: Products >rTWrY ili t . , . rorr **--the ""S Icxturex, especially adapted to heavy F-.-. ~rCia.ciccp textures and a wide range of design applications. ! -r?>uiui .application: insoluble and durable. Useful for i~-\1._ %Tfl'hi"f plaster surfaces, producing stone or antique effects, . ^jtwoflr, unequalled for concealing wall blemishes. White ` .' but can be timed with Texoute* Standard or coated ' wall paints. ... - 8SS Texture Paint--similar in performance to Textone,' ' .-: ijdcrcnt in texture effect. Produces medium heavy to t -saiem Ugh: stipples with excellent hardness and hide. No J vcos usually required. 8 colors. jf' - ^.BTrx* Texture Paint--economical powder product for . ' Jdt to medium light stipples and orange-peel textures; widely --y*d n troweied coaling for concrete ceilings. White only. , >V . . "v 5j5fl Orywall Surfacer--aggregated sand finish, spray ~-:upcled to gypsum walJboard surfaces: should not be timed. ~V; Vkn dry, is overpainted with any latex or oil base paint. 12a 1' [. Tenure Designs: dramatic new concepts in wail texture, J . wa directions for accomplishing various effects with the -p. . products above, arc presented in a 24-page brochure, "A t. ,Jw foe Texture", Your U.S.G. representative ewn supply .atopy--iVo. T-641, ' Ceiling spray-finished with USG Impenal Texture . 4. Surface Preparation Products Texoute Primer-Sealer--a pigmented latex product for use under any type of paint or enamel, performs better under ' water-thinned paints than any other sealer. Locks in lime. equaUzes suction, lays paper and fiber nap, provides "tooth''.' White only, but may be tinted. Sheetrock' Sealer--a tung oil resin emulsion sealer for use over gypsum wallboaxd: also unsurpassed in bridging and filling hairiinc cracks in plaster. May be used under all interior paints and wallpaper. Equalizes porosity over joint reinforce ment and face paper. Especially recommended for kitchens and bathrooms. Should be timed to shade of finish coat. USG Penetrating Sealer--a special non-pigmented alkyd resin solution in soirits. designed to condition exterior or in terior surfaces which are porous or moderately chalky; forms firm tight base lor repainting after 4 days with any paint except cement bonding type. May be tinted only with colors iD oil. USG Enamel Undercoat--alkyd base mineral spirit under coat for interior gloss, serru-gloss or flat oil paints. Not a sealer, but provides low-cost good first coat: fills and equal izes surface to be painted. May be limed with colors in oiL USG Exterior House Primer *394--oil-base primer to prepare new or chalky wood surfaces for USC Latex House Faint or exterior oil paints. Lead-free, blister-resistant, breather- type coating. White only. USG Block Filler--conceals voids, fills pores and provides uniform finish over interior, exterior masonry and other rough surfaces. Not a waterproofing material: may be coated with any paint except cement bonding type--USG Vinyl Exterior or USG Latex House Paints recommended for exteriors. May be tinted. Available either aggregated or unaggregated. Dura-Stop* Compound --a quick-setting hydraulic pow der compound used to control water penetration, plug cracks and openings in masonry. Also excellent fox.anchoring fix ture bolts. Natural color, may be overcoaled with Dura-Dri* Coating in colors tsce Exterior and Masonry Coatings). ,k ., ;-.cor.iinued on peg e b i f-r.i S"caJc_ //x  . V . . .x ' . . . c>r.Vv w'v .. ^^- . . 'V. >. ' : .-.- . X:r?> ~ ; -w ' ; --k--c'YT-X' '-: ~ V. ' 72a Ua i^ft^pS.F^RJ]TI0NS:>:flagFrASSEiV1BlJE9^l I :V '| C: ,-U ~ VJ-~. >* v- >i!\>>,Vt~r. ;*3^r \M PLAINTIFF'S 5 EXHIBIT " v'-1 ^g||,wt. Ill UL I iL". W!p2^.7\S3 f am PRODUCT BULLETIN I- , dtscription and utility USG5 Gypsum Plasters Tost types 0f Ur.i'ed States Qmujn. .p.l.a..stertn - prooducts z_~_zAa-y..v-ereradi in this catalog: U) Ssveoat Plasters, (2) Finish 7i ft.t.G*ugiDga-n-dJrOtr--n--a--m---e--n--t-a-l ' f^en and Finishing Limes. m lowsDeal Plasters, (4) Fire ' Sw^tFosicn. properties and limi- ics are treated within each .rroup. A general plastering .-." j-^afeauon, applicable to ail ; (ft groups, appears on pages ' 4 H. / Fj the beauty and durability ^ bch plaster is capable, requirements should be .'Y- isSjoed as to number of coats v> -rppiied. Three-coat work is `v'r **odaiory on all metal lath, \i -cdco odp-supported gypsum /-'.-'lull used in ceiling; three-coat 2y' vwk is desirable on all gypsum .Ur. lea: rwo-ooac work is accept 1 /' rise oo unperforated gypsum 'Ixb vhea properly supported, -- / snd masonry piaster bases. Exceptions are noted below for r tjual* Plasters. " ^ preparation of plastering specifications, consideration /-.Al be gi>en to the selection of materials not only for com -. rciuy, but for the quality of the structure co be plastered. . >323 ASA and AIA specifications are based on minimum sarCirds. they should be followed only in applications where ./tersn piastcring qualify is desired. It is wise to upgrade jxasterjvg specifications wherever possible; ail the elements . amiable for quality installations. Following are general taxzzmazitions listed Ln the order of preference--No. 1 in St case can be expected to produce the hi ghest quality results; S*scoat PIaster(over metal lath) . Scruch Coat *_ SnucTtvBxsE (l) Cement '"'ffUi-'C Poster, Sanded 1 c2 Brown Coat StructoBase Cement Plaster, sanded 1:3 -J-V 7 1. Wood Fiber, near, or up to 1:1. Wood Fiber, . .sanded up to 1:1 ^'ood Fiber, neat, or Red Top* Cement Plaster, up to 1:1 , sanded 1:1 ^ ^ood Fiber, neat, or * to 1:1 i Red Tor Cement Plaster, -rfrC-/-fcaied lt2 . Structo-Lhe* Plaster Red Top Cement Plaster, sanded 1:3 To* Cement Plaster, Red Top Cement Plaster, >:;;4F;_7erlited 100 lbs.; 2 cu. fL perilled 100 lbs.: 2 cu. fL * \ ** .-% - four IocjJ OS.C, f*cs-mUthr, * * t** ' , r' ^/`s'::l3coat Planter (over gypsum lath) of Aggregates" table. Page 2. Segregates K. ^^-tnixed Perlite iqncpT-- lAoWd Dot U 3. Job-mixed Perlite.. 4. Job-mixed Vermiculite * * umUwclio* w, **,,,(( ooi,. Finish Cents Float Finishes 1. Orottal* Interior " 2. Ivory* Lime (92% hydrate) Keenes Cement and White . Silica Sand . Smooth Trowel Finisher ~ ' . 1. Ivory Lime, and Sttwcto-Gauge 2. Ivory Lime, and Keenes Cement 3. Ivory Lime, Red Tot* Gauging, wiih Vi cu. ft. of perlite fines or fine silica sand. . " halt: Hot? f*wuAcs t, 2 a4 fraw-trf uu o*r biivut conLiinflf piondi Aif1) iO.'4iiod fmUnct *<) camoautty ftard fijwcuL J Ot >*ly fi*uAa rrcommmdrd for f 1 *n4 2 t v*coU lreH) !Aaw li/Onca tsw^i fit u4 ort t types and functions 1.Basecoat Plasters description The base of all gypsum plasters is gypsum rock, hydrous calcium sulfate, which has a water content of about 20*71) in chemical comoination. In its manufacture, about 1-4 of this chemically combined water is removed from the gypsum rock ' by means of a controlled calcination procedure. Then as water is added at the job. the material crystallizes (sets), reverting to its original chemical composition. Red Top Gypsum Plasters are specifically formulated to con trol setting time and other important characteristics. This depends upon the intended use and method of application, the climatic conditions of the area, and job conditions. L'SG Basccoat Plasters can be applied by usiag either hand or machine methods, on gypsum or metal lath; gypsum or clay tile; concrete or cinder blocks; brick, or other approved plaster bases. ' function - . Basccoat plasters provide a plastic working material which will conform to most designs and provide the ultimate in durable walls and ceilings. . Fire Protection--Gypsum plaster, properly proportioned with approved aggregates, and used in conjunction with specific plaster buses, provides excellent fire protection (see specific USG Systems Folders for fire test data). ' " -- Strength--There are significant differences in the strengths of gypsum basccoat plasters. The strength of a gypsum basccoat piaster is dependent on four factors: . .. 1. Water-Cement Ratio--Tbe water required to produce a plastic mix depends oa the amount and type of aggregate (see technical data page 2). 2. Control of Set--Rep Top Gypsum Plasters are formulated for use wnh market aggregates, climatic ennditions. and job conditions. The quicker a gypsum plaster seta, the stronger the basccoat. _ * . ` ^f 3. Time of Application--Plasters should be applied within ooe hour after mixing to assure desired strength and proper bond. A.I.A. f ill No. ?IA 4. Ventilation and Drying are important adjuncts to producing a strong bascccwt once the gyp-, sum plaster has set. Not only must the plaster be dr.cb. but jhe moisture must be removed from Use building. cm i m ..wj..-UNITED STATES .GYPSUM pye.-VJ aLllai u 'm | i mir itr " ~ i fc^Hi r- - - : t Sound Isolation--Gypsum plaster in combination with lathing or various construction systems oiTcrs sound transmission loss characteristics suitable for most requirements. Sanded basecoat plasters provide the optimum results (see USG Construc tion Selector). limitations 1. Structo-Base. or Red Top Cement Plaster, must have aggregate added strictly according to specifications. Use of too much aggregate drastically decreases its strength. 2. Machine application of wood fiber plaster requires the addition of up to 1 cu. ft. of sand per 100 lbs. of plaster. 3. Where sound transmission is the prime consideration in ' partition or ceiling assemblies, use sand aggregate only, since mass is a controlling factor. 4. Over interior monolithic concrete ceilings, walls, beams, columns or soffits, only Red Top Plaster Bond, followed by application of Red Top Concrete Finish or other basecoat plasters or finish coats, and Bondcrete are recommended.- Bondcrete may be applied directly to interior concrete sur faces providing the surface is sufficiently roughed provide a proper bond. Maximum thicltness of Bosdcrete should not exceed $4' on ceilings or on wails. If additional thickness ris required, self-furring metal lath should be secured to the terete surfaces. Under no circumstances should Structo- -- s or Red Top Cement Plaster or Wood Fiber Plaster be ylied directly to monolithic concrete. . 'Gypsum plasters should not be used where they will come in contact with water or excessive moisture. Although gypsum plaster may be used as a base for adhesive application of wall tile in bath and shower areas (see Gypsum Assn. AIA File 21-A-2), Portland ccment-lime plaster should be used in steam rooms, public showers and other areas of extreme exposure or continuous use. - . Gypsum plasters may be applied to ceilings of open porches, carports, soffits of eaves, walkways, and canopies, but only when these surfaces are horizontal or inclined downward from the structure. All such plaster surfaces should be pro tected from direct exposure to rain and moisture, and suitable drips and casings provided along edges. Refer to Gypsum Assn. AIA File 21-A-2. Gypsum Plaster in Exterior Locations. 6. Plaster application on masonry or concrete walls, or ceil ings that have been coated with bituminous compounds or Other waterproofing agents, is not recommended. . Because of the possibility of condensation or water seepage, plastering to. interior side of exterior masonry walls above grade or exterior foundation walls below grade is not recom mended. In each instance they should be furred and lathed before plastering (see USG Construction Selector). Subgradc --construction should also be waterproofed on the exterior side. 7. Radiant heat plaster slabs should not have surface tem peratures exceeding I i5* F. Check conductivity of the plaster and aggregate. The thermal conductivity of gypsum-sand plaster is approximately three times that of Structo-Lite. ' ;-r to G>psum Association AIA File 21-A-2, Gypsum rr with Radiant Heating. / -- Basecoat, plasters must not die or stop against a hollow metal door iramc return. Provision must be made to dampen the trim return vibration by grouting, and by the use of special anchors. The grout should be raked out to 3llow lain and plaster to be inserted into the frame. V. On remodeling work where a r.cw ..... . applied over an existing wall or ceiling (hc ,, .. '* r ** ^ metal lath, with scratch and brown ccui'-- will give superior results. The use of siT'-iru V'7 taming lightweight aggregates is not reeom.nc 1' -- purpose. ' Use of Aggregates with Gypsum Cement Pi.t; maximum recommended otapoitior.i plaster base no. of C04U type ol coats maiimum ouantMy oi be used wun ICO ;tv ol >11 .' .. under smooth trowel finishes a > . . ,x sand (I; 1 or.,,;e ; -..v.t ' . GYPSUM LATH METAL LATH 3 scratch j 2 brown | 3 2 i .> 213 : "7 it 2 basecoat | 2K 1 2 i 3 scratch brown > 4. 3 -!i : UNIT MASONRY 3 scratch brown 2 basecoat _J- iJ j3 i1 j5 r! - 1r 3 i i i j -!-V (1) A09fotmlHr m No. 2 inovtit at tins \ tw, n. Hole I a a coast/wcuo intern *jiica has mtti lain *1 ta* tw lit* j(f(jta it Ml rtcemmtMrt tor um mi tn# ;tMU, * a, , Technical Data-- Basecoa* Plaster* plaster | j com or s'.". * j * mix strength I :p -j : . 1 I osi--e:y-l' I STRUCTO-UTE (re^u'ao 1 | f-20 ) . j wood liber neat j 2C00 l d j wood liber (sand) 100:1 | 1700 I ;; STRUCTO-BASE (sand) REO TOP cement plaster mixed with-- sand perlite vermiculile 100:2 100:3 100:1 1Mi2 100,2H 100-3 ICO 2 100:3 100:2 100:3 37iO in . 2>X in i l?tXI iu ; less 'la l 450 ' 'A ` '*4 COO 550 SSS i 290 I t: 1 ll) A*<rt( UMuterr f`iura mtj adit. feU*4 ifl JcCA/ttanca vitn ASTM C21. ;i--- - Red Top Wood Fiber Plaster is a gypsum pt.i-.ter ** ing fine particles of selected wood fiber, ll nnrnvalK the addition of water only: however, when u-ed owr r. w---y- plaster bases. 1 cu. ft. of sand per 100 lb*, of rla-icr '* added, and when used as a brown coat 1 cu. U. <>i --in.*, ^-rt be added. Wood fiber plaster can be applied to all -ui-'W Lath and masonry piaster bases; it is stron*dy as a scratch coat for metal lath. 'ood fiber weighs approximately ',4 ,h:,n 1 V rpsum basecoat; has nearly twice the comtirrwic j-. " rength of sanded plaster; is an excellent ir* '* ' * laterial, generally providing greater nre rm- "*2 mded gypsum plaster: slight!y more tih.m ^Jj-^ * lm plaster. Complies with ASTM Spec. C - W ee.P-102 TvOC W. 4 : Red Top Cement Plaster is a gypsum the addition of aggregate. It is supplied as c w Unfibcred and is formulated for use over alt >,- i bases. Formulation includes: Regular for aggregate, hand application: LW--lor ue " aggregate, hand application; Macnine with sand or lightweight aggregate. _.. -c. ^ . _ . 5use. CC'---ai.y. ". e i A Vi"'.v*\,,yJ*-V*^-:'s_ *-/ _;`*t-. rr- ftiSU* ttAiU USG Gypsum F 5 asters 12a ' j^p Tof Cement Plaster properly proportioned with agre> v forms lurd durable base for application of finish coats '." ^"uWe above for compressive strengths). It is set stabilised ' xai formulated for market conditions and seasonal changes. ' ytedog with a iow-cost aggregate increases its bulk and ^veraff- Highly plastic, it is easily and quickly applied. For 'cccLfr: hre ratings of assemblies using this product, see USG ' Construction Selector. Complies with ASTM C-28 and Fed- jni Specification No. SS-P-402 Type N. ;- ' ' 5t*ucto-Base Cement Plaster is a special gypsum base - real plaster that develops higher strengths than conventional -Orders. It is recommended for such areas as handball courts, ' jxspiui corridors, schools, etc., or wheverer a high strength y'.. tTjwoai piaster is necessary. Complies with Federal Specifii'.vaajons SS-P-W2. Type N, and ASTM Designation C-28 for > '-*yypsum ocat plaster" including the added requirement of LriX> lbs. per sq. in. compressive strength when mixed with v'/.xj parts by weight of Standard Ottawa Sand. Consult your /H\eai U.S.G. sales representative for availability. t.Tuj tio Tor Structo-Lite Plaster is a mill-mixed perlite .Vl'^iTT-rysted gypsum cement plaster which requires the addition '">Tpf ooiy water at the job site. It is formulated in four types: ^'..fandor--foruse over gypsum lath, hand application: Masonry __for use on high suction unit masonry base f-dy, hand lrplicaiion; Regular--for use over gypsum latttr" machine :\ippueilion.- Masonry for Machine Application on high suction :y---t masonry. ` \ Tor Structo-Lite is formulated to assure the architect .. * unit responsibility. Mill-mixed lightweight aggregated Her provides: . I'rV.L Ccxuro! of set (see Red Top Cement Plaster, LW formuia-L'vllk'o). " fi 2. Proper proportioning of aggregate (see page 2: two cu. ft. . '1'r' of lightweight aggregate is recommended for both scratch ' brown). i A qualicy of perlite with proper gradation and hardness oooessxy for a basecoat plaster. . Brown Coat--l sack of Poniard Cemem: l sacks oi Moitt l_me 9 cu. ft. of sand Uh Finish Coat--USG Oriental.* E-tiericr Stucco (mill-mixed), a white, or colored ioaa ee texture finish plaster. Limitations of Portland Ccmea Plaster are: (1) Scratch and brown coat requires curing with water trier set; (2) Must not be applied directly to smooth, dense serfages; gypsum lath or gypsum block. Self-furring metal Led must be secured to such surfaces before plaster is apptci; (3) Control joints should be provided to comperscte for the shrinkage of the Portland cement monar dunr.g drying; (4) A Kecncs cementlime putty finish must never be used cr-cr a Portland cement basecoat. 2. Finish Coat Plasters - description There are several types of gypsum finish plasters; some used with the addition of water only, and others which axe a blend of gypsum, lime and water, or gypsum, lime, sand and water. - Since the finish coat must be compatible with the basecoat. care must be taken in the selection of the finish coat materials in relationship with the chaxactensua of the basecoat. ' Three general classifications of finishing materials are (1) pre- pared finishes: (2) smooth trowel finishes; (3) sand float finishes. . function . The finish coat serves as a leveling coat, as a base for decora tion and provides the required resistance to abrasion. '' ' Gauging plasters impart an early hardness and strength, . minimizing the shrinkage characteristic of lime. limitation* v- 1. A smooth trowel finish should not be used over vermiculite aggregate gypsum basecoat applied over metal lath. A sand float finish or an acoustical plaster is recommended.- . ' irmxrro-LtTE weighs less than half as much as sanded base- ,^-U' -'ai plaster: has a "k" factor of 1.74. providing three times L Y msulaboa of sanded plaster. For this reason Structo-Lite .V.('. 8lw recommended for use with radiant heated panels. The added fire protection afforded by SrRUCro-LrrE is the out- Y; gaaLdg contribution of the product. Over-all cost is com- to job-mixed lightweight aggregate plaster. Complies _!,.!>`-I ASTM C-28 for gypsum ready-mixed plaster. Top Bohdcrjete Plaster is a specially formulated ^"ding basecoat plaster for use over properly roughened concrete surfaces (sec Specifications, Section ill, para5s-7X"a"). Water only is added. 2. Where the gypsum basecoat is Structo-Lite or contains lightweight aggregate (perlite or vermiculite) and a smooth trowel finish is used, the finish coat should be Red Top Gauging Plaster and lime, with addition of Ifi cu. ft. of perlite fines or 50 lbs. of No. 1 white silica sand per 100 lbs. gauging plaster. 3. Gypsum base finishes including Kecncs cement shouldnot be used over a Portland cement basecoat. 4. Gauging plasters providing an extremely hard surface. such as Structo-Gauce and Keenes cement, must not be used over STRUCTO-Lnr. or a basecoat with a lightweight aggregate. ' ` - <has approximately the same coefficient of thermal ",j 2'<f,*:^{ansioo as concrete. Since both labor and material costs are : T'il-"r<ni^Y lbe same as wood fiber plaster, it is an economical vr^ctical basecoat for concrete surfaces. Complies with C-28 for gypsum bond plaster. ^rtUrui Cement Plaster is required for interior use - -ere high moisture conditions exist, or as an exterior base.-d31t >or stucco. A Portland Cement Lime Plaster is prepared ", TCI^in the following proportions: * -vYlcJrY-i ' Coat--1 sack of Portland Cement " 2 sacks rotf VM,o1mrtt,T\s:uenal* ILimrr e 7'/r cu. ft. of S3nd S' :-2 lbs. of fiber (over metai lath or nucco mesh) . .. .. .. See the chart following for selection of finish coat materials. Oriental Interior Stucco--A white finish plaster for a sand float or textured finish. May be spray-applied with a hand spray gun; should not be used for smooth trowel finishes. Requires only the addition of water. Provides excellent hard ness and great durability. . Red Top Concrete Finish--A new spray-textured decora tive plaster finish for monolithic concrete surfaces. A gauged trowel coat is first applied to level concrete form irregularities, followed by a spray coat that gives a pleasing texture. Use of this finish minimizes need for butfing and grinding oi concrete, and permits maximum rc-use of forms. It is highly plastic, easily pumped to upper stones, and dries to a dense, wh - .. -t"vVs..... * A- \ mf /;'* *3 i- -- - - .r ---v