Document jLenaLqBdYkjav96YxvmQZ9N

Joint Compounds are affected by aging, therefor*. Dealers and Applicator* should rotate stock* and tore material in dry place*. USG Joint Compounds are not affected by freezing temperature* in their powder slate, but they will give bettr$ulta if brought to * temperature of about 50* P. just prior to using by storing In a heated area. Obviously, cold powder when mixed with water will lower water temperature. In an extreme case, where water temperature may be just above freezing and tba powder below freez ing, a mature of the two could result in a frozen bucket of compound impossible to mis or use. Before, during, and after USG Joint Compound applications, a minimum controlled temperature of 55*--60* P. must be maintained at all times within the working area until materia] is dry and decora ted. Widely fluctuating temperatures (more than 16* F. variation) should ba avoided* . - . ; . . ` * ' ^ ' 1 Altbouzb USG Compounds work very simflariy to Compounds, alight modifications In tecnniqoe may hava to bo made. Their excellent lickneaa demands that on heavy fiQs, the applies- . lion angle of tba tool ia raised a little (around 45* la beat), this will minimize tendency to cratering and also cut down on "drag." . . *^ : V'lV,''*1 '' ' Kni'>' Craters on fill coata on any typa of Joint compound ' can usually ba taken care of by applying the final ' coat.yaryt<tight,*!thatia,uaaplantyoftoolpraaKura. ' - USO Joint Cbmpounda are particularly responsive to tightly applied finish coata and tha resulting . smoothness achieved by a skilled mechanic can eur- pass that obtainable with any other type of powder ' compound. . ' .. Sometime*, a coat of joint compound appears to be . . dry, and often la, on tha surface; but underneath It " can still ba damp. It b essential that previously applied compound is dry throughout its entire thick- % . ne*a beforesubsequent coats or decorating materials * are uaed over same. ' All of tha USG Compounds described in this leaflet ** comestible with each other, and la addition, also compatible. . *b 1 USG Compounds may also be used over hardened Moat egyaln-based joint compounds including Joint Compounds manufactured by United State* Gypsum Company, are not compati ble with the USG brand Joint Compounds; and problems may result if any attempt la made to use Compounds with USG Compounds, it an attempt is made to mix any of the USG brand Joint Compounds and the Joint Compounds together, tha final mixture will causa problems. . . . t TEXTURING Many drywjtll ni*iilicn,r>>* will m* USG Joint Com pounds, for texturing or as n thin coat finish, with very satisfactory results. Light to medium textures are readily obtained, usually without paint additions being nrrc.wary. If paint or oilier similar additions are desired for tinting, etc., consult the appropriate paint manufacture!$. When joint compounds are used for any type of textui ing, all Murfaces, including treated joints, must be THOROUGHLY dry and not glossy. A good quality oil-ha-o-d primer-sealer recommended by the appropriate paint manufacturer, should be applied and dry prior to texturing. Where spray textures are desired with USG Joint Compounds, most spray machine manufacturers can furnish pressure, nozzle settings and other relevant infoi motion. In many nri-us, entire wall and ceiling surfaces are completely covered with joint compound and brought to a very smooth skim coat finish. Technique* vary, but one recommended method is to apply the <:om|K>und over entire surface, render level, allow it to partially dry. then spray on a mist of water, and tool down to a marble smooth glaze. PAINTING AND DECORATING Tainting and decorating directions prescribed by appropriate manufacturers should be strictly fol lowed. If decorating problems arise, such manu facturers should be consulted. COMPLIANCE WITH FEDERAL GOVERNMENT SPECIFICATIONS AND ASTM DESIGNATIONS USG Joint Compounds will meet ASTM Designa tion C 475-64, ASA requirement A 97.1-1950 and Federal Specifications SS-J-670A (GSA-FSS). DISCLAIMER Since methods and conditions of application and use era beyond the control of the United States Gypsum Company, its warranties of FITNESS and MERCHANTABILITY as well as any other warranties, expressed or implied, made in connec tion with the sale of this product, SHALL NOT BE EFFECTIVE OR ACTIONABLE UNLESS the product is applied according to United States Gypsum Company's directions and specifications. -i XJT noon (i?o`i vP' -.V-l ~ *T PLAINTIFF'S EXHIBIT if windows and doors tn covered to eliminate drafts, and as mentioned before, the working area ahaded whenever possible. Humidity can be raised to more normal levels by sprinkling sub-floors with water and placing open cans of water about the job. DO NOT THIN JOINT COMPOUNDS WITH ADDITIONAL WATER. This increases shrinkage and does not appreciably alow down the drying time. 1 ' /e possible compression lumps and for fast dis version. Mix well until powder is uniformly damp, then after . a short wait of about 3-6 minutes, remix vigorously / until smooth. . DO NOT OVERTHIN COMPOUNDS. Excess I water may appear to make initial mixing easier, i but it encourages lumping and worse, will cause excessive or delayed shrinkage, and sometimes even loss of bond. Often, the material on the upper edge of a bucket of mixed compound, or on the edge of a "bread" pan or on tools left in these containers, tends to dry fairly Cast, and "crud" flakes or lumps may Ml into the mixed material, causing scratch marks and "tippers". . . . To prevent this, it is essential that the edge* of buckets, and other containers are kept wet with a damp brush or conversely, when "crud" starts to form, remove it carefully before it falls into the mixed material, because it will not re-dissolve readily. . When periods of high humidity prevail, it is im portant that applied compound is thoroughly dry by allowing a much longer drying period before applying subsequent coats, or in decorating final "coats. UJS.G. Booklet J-8 "Drying Standards for Drywall Joint Treatment" gives further informs-_ tion on humidity, temperature and applied com- ' ' pound thickness, with tables which accurately show ' how temperature and humidity changes can affect diying. . PRE-MIXING Many compounds particularly caseins, if mixed one day and left overnight must be compensated for viscosity changes by using lees water to allow for "watering down" tendency, and this is often difficult to judge. ' ' Since USG Joint Compounds contain no casein, they usually can be mixed and retained at any given viscosity. On occasions, some slight liquid separation or settlement of compound in the bucket may take place, but a brief remix is all that is necessary to .1 restore the material to its original viscosity. i1'. 'APPLICATION PROCEDURES ; ! W METAL BEAD ` ^ ' ; USG Joint Compound-Taping, can be expect*'1 to ' give the very best results over metal head, RECOMMENDED WATER PROPORTIONS FOR EACH 25-LB. BAG OF POWDER USQ JOINT COMPOUND-TAPING , i - The bead must be attached in strict accordance I - with United States Gypsum's recommendations, ' and must not be out of alignment or loose. -The ' ; fasteners must be secure and not protruding. The - bead must be free of dust, ofl or other contaminants. " ' Hand Tool Application___.Approx. 16 Pints " Mechanical Taping_______ Approx. 19 Pints " Mechanical Fill Coat-_____Approx. 17 Pints Using bead as screed, cover both flanges well with . compound, spreading material three to four inches wide from the nose of the bead. Leave to dry for a minimum of 24 hours (longer if drying conditions are poor), sand lightly if neces sary. then apply a coat of MIXING OF USG JOINT COMPOUNDS Use a clean mixing container and pour clean drink able water into it, following water proportions in . accordance with bag directions. ' over the first coat, feathering edges two to three Inches beyond preceding coat. Depending on job conditions, quality of work de sired, etc., a third or even more coats may be required; these are applied over DRY preceding coats, feathering edges carefully beyond previous ones. The final coat, when dry, is smoothly sanded ready to receive decoration. The heavier the consistency of compound used in all coats for spotting nails and screws, then the lower the shrinkage in these critical areas. Consistency and shrinkage are directly proportional. * Check that all nails, screws, and other type fasteners are firmly embedded by drawing a joint finishing knife across their heads. Drive home protruding fasteners. Apply first coat of compound over all nail or screw heads, immediately prior to embedding tape. Use pressure on knife to smooth compound level with board surface. DO NOT USE ENOUGH PRES SURE TO SEVERELY BOW KNIFE BLADE. AS THIS TENDS TO SCOOP COMPOUND OUT OF DIMPLED AREA AROUND NAIL OR SCREW HEAD. During second coat application of compound on joints, the nails or screws are spotted for the second time. Make sure that first applications are thor oughly dry, and apply just enough pressure on the knife to ensure complete coverage with no scooping. USG Joint Compound-Taping may be used for second application. When the joints are receiving their third coat, the thoroughly dry nail or screw spotted areas should be Ughtly sanded and then given their third coat. are recommended for third coat applications. On occasions, depending on job conditions, tem perature, humidity, etc., more than three coats may be required. Each previous coat should be dry, and lightly sanded before applying subsequent coats. Light sanding may be necessary (and is recom mended) on the dry final coat before proceeding with decorations. TAPERED JOINTS croon 020f> The tapered edges on Gypsum Wall- board are precision formed--neither too deep nor too shallow--to ensure that the correct amount of Joint Compound is deposited in the channel. Using a joint finishing knife, butter USG Joint Compound-Taping, into the channel formed by adjoining tapered edges of . Gypsum Wallboard, filling the channel fully and evenly, but avoiding heavy fills. Immediately center .tinforcing tape into the channel, pressing down into the fresh com pound with a joint finishing knife, holding the knife at an approximate angle of 45' to the board. Draw knife along joint using sufficient pressure to squeeze some compound from edges of tape, yet leaving enough for sufficient bond. As a guide, there should be '6* to 16' compound under the tape. Make certain that the excess compound, squeezed from under the tape, is now spread on the upper GOOD REASONS FOR USING USG" READY-MIXED COMPOUND--ALL PURPOSE READY MIXED--Ready for Immediate use. Factory mixed for consistently high quality. Mixing to a smooth, lump free plasticity be comes a U.S.G. plant responsibility, not a job problem. ALL PURPOSE APPLICATION--Tap ing and lopping compounds are now available in a aingle package, lliia simplifies the number of different products required on the job. LOWER ON-THE-WALL COST-Initial package cost for material may he alightly higher than powder compounds. However, the cost of mixing powders and the additional coverage, usually eliminate Ihia difference. The average time required to job-mix one bag of powder comjtound on a doy-in, day-out basis ia nt least 15 minutes and often longer. The hid den costa of locating suitable water prior to mixing, the loss or productivity due to mixing time, the possible failure to obtain a smooth, lump free, working compound under aome job conditions, all add to the cost of powder compounds- The coat of mixing alone on the average house requiring 8 to 10 bags ia IX to 2 hours labor. LOW SHRINKAGE--USG needy Mixed Joint Compound-All Purpose, should be used for spotting nail heads and for exterior angles on off coats. Us lower shrinkage characteristics not only save money but are very important in obtaining finer finished work, especially on ceilings. EASY SANDING--Another job economy that makes preparing for decoration easier and faster. The smooth, dry finish often permits using finer grade sand paper, as well as less paper. EXTRA SMOOTH FINISH-Minimizes the amount of sanding required, especially on ' , i | j . I r-root' (1?21 feathered edges. Sanding may be eliminated entirely in the hands of a res! craftsman. BETTER SLIP--Through a machine and under knife or trowel, ita buttery working projiertiea produce a perfect joint with out standing case and speed. EXCELLENT BOND--The superior bond- ing properties of tliia compound are retained to a considerable degree even under humid job conditions which sometimes adversely affect bonding strength of ordinary powder compounds. \ LESS WASTE--Nothing to throw away at the end of the day. When through, simply cover the compound to prevent water loss by evaporation. LESS DROPPING--The buttery work ing properties of this compound minimize drop pings. Costly job clean-up is virtually eliminated. LESS TENDENCY TO SURFACE CRUST--Though this compound must be pro tected from extreme moisture loss after con tainer has been opened, it shows less tendency to skin or crust-over than do dry powder com pounds. It can aiiio be retempered with com parative ease. MINIMUM JOINT RIDGING--Re peated field trials and exhaustive laboratory tests show that this comj>ound reduces fre quency and severity of ridging. FEWER DECORATION PROBLEMS --Smoothness of finished joints, and lack of any chemical reaction with paints or wallpaper simplify decoration. I MORE PLEASANT ODOR--Mechanics will appreciate the relatively mild, pleAoant odor of thin compound particularly on hot, humid day9 when working in closets and other . confined areas. * LESS STAINING OF FLOORS AND TRIM --While joint finishing is preferably done before wood trim and finish flooring is installed, this is not always possible. The comparative * ease of removing USG* Ready Mixed Joint Compound-AU Purjxxw, fromwoodwork leasena risk of stains. VERSATILITY--Does alt three: taping, topping, texturea. Handles other chorea as well; rearly-lo-use for repairing cracked plaster walls, small patch work on gypsum wallboard. ' I | I ' | i PACKAGING--The strong, durable cor rugated carton or the metal pail both stack easily and compactly. It ia recommended that the cartons and metal paila be piled not more than four high. USG Ready Mixed Joint Com pound-All Purpose, in the carton, remains fresh and usable for tong periods because it is en closed in a polyethylene plastic bag. The air tight seal and durable lining of the metal pai! packaging assures long shelf life. Because of the socially formulated consistency, USG Ready Mixed Joint Compound-All Purpose, has a package life of about 1 year. > I , RESISTANT TO TAPE EDGE CRACK ING --U.S.G. field and laboratory tests have shown this comjiound to be highly resistant to cracking along ta|e edges. ' DIRECTIONS AND SPECIAL INSTRUCTIONS An outstanding characteristic of this compound is compatibility with many powder comjxnmds. Thin does not mean that dry powder compound can or should be used to mix with or thicken USG Ready Mixed Joint Compound-All Pur pose. Rather, it means that Ready Mixed Com pound can be used in tools and containers previously holding j>owder comjiound without a thorough "cleanout." USG Joint ComjwundAll Purjwse can also be used as a topping over l>owder compound joints which have thoroughly dried, or for taping when powdered Ptftr-ATapk* Joint Comjiound-Topping or powdered USG* Joint Comjxmnd-Topping, is to \ie u*d as a finish coot over it. USG Ready Mixed Joint Compound-Ail Pur pose, should be protected from freezing. If it becomes frozen, allow it to thaw at room tem perature. Do not force the than ing proc*^. Relem|>cr and it will again be usable. Avoid rejx.-aU.-d freezing and thawing. Heavy fills and high crowns may produce pits or craters. Disregard these, until the final coat when a "tight crown" or o thin skim coat will fill them: The drog effect of flat trowelling also causes cratering. Minimize this by raising trowel angle to 45*. We recommend that the applicator first try the coni|x>und without thinning. If a thinner material is desired, USG Heady Mixed Joint Compound-All Purpose can be quickly and easily thinned with water using a jioLato masher type mixing paddle. Add the water gradually to sf>eed the thinning process. Use cool fnot hot) water. A drill tyjc mixer with more than 600 R.P.M. is not recommended, as this tends to whip air into the comjiound. Shrinkage of nail spots is one of the most criti cal parts of any drywall job. If thinning of Ready Mixed Comjxmnd is necessary for good tool workability, if is urged that nail heads be spotted with compound at packnge consistency or j>rior to thinning. This practice will largely minimize nail bead comjiound shrinkage prob lems. The heavier package consistency should Li*** k*r * JLju .*_____ 4 at:*? be used for all metal work. When it becomes necessary to hold the wet mix in a metal container for prolonged periods, cover with a damp cloth or add a thin layer of water. Pour off water, retemper when again to he used. If applicator should inadvertently over-thin, simply add additional USG' Heady Mixed Joint Compound to thicken. TIPS FOR BETTER JOINT TREATMENT APPLICATION--Aa a Tnping compound for embedding or Brat coat work, the channel formed by the tapered edges of the gypsum wallhoard roust be completely filled with comlound, level with the plane of the board. When tape is npplied and wiped down, be sure that sufficient compound remainB beneath the entire taj-e-- approximately '</ to under the tape. Tim recommended procedure is to apply a "Bkim coat" of compound immediately after embedding tape. This covering coat forms a "sandwich" of compound, and reduces the pos sibility of edge wrinkling or curling which may lead to a type of edge crack. AVOID VERY HEAVY FILLS-Extremely heavy fills increase the possibility of excessive shrinkage and check cracking. However, be cause of its exceptional smoothness, low shrink age and ease of sanding, USG Ready Mixed Joint Compound-All Purpose, is the ideal ma terial for taping and ail finishing coats as well a* all nail spotting. Good workmanship by the mechanic will provide finished jobs that require little or no sanding, which should be the goal of all applicators. ABNORMAL DRYING CONDITIONS Slow Drying --Cold, damp weather causes slow drying of all ty|*es of joint compounds; and 48 hours b often insufficient between coats. U S.G. Pamphlet J-8--Drying Standards for Drywnll Joint Treatment.) Finishing over seemingly dry base coata which are actually wet underneath can cause bond failures, delayed shrinkage and paint discoloration. These cold weather difficulties are more prevalent when improper heat and inadequate ventilation are provided. The minimum heat requirements of 55 F. should )* maintained at ail times during the erection of the gypsum wallboord as well ns through the tnping, finishing and decorating phases. T he l>c9t pracf ice is to use central heat ing. Temporary heat provided by salamanders, apace heaters or unvented gas burners are very often unsatisfactory causing uneven drying, leading to the troubles mentioned above, as well ns paint discoloration due to fumes. Par ticular care should l>e taken to maintain proper ventilation. Fast Drying --Applicators will recognize too rapid drying conditions when the compound takes on n shorter working life especially along the feather edges and where one joint joins or crosses another. Rapid drying is usually due to low humidity am! warm winds. During these periods every effort should be made to prolong the working and drying time of the compound. Stop drafts by closing dixirs and windows. Shorten tho time required to complete the ap plication by working shorter lengths of joint at one time. Raise the humidity by liberally sprinkling sub-floor with water. Remember, the addition of water to thin compound increases the possibility of excessive shrinkage. Do not try to slow drying by adding water. ALWAYS CHECK WORKING SURFACES Gypsum wallbonrd must be held firmly against and secured tightly to framing memliers, when nailing. Nails should be applied from the center to the edges of the board, without cutting surface paper or fracturing the core oft he hoard; otherwise nail "jjops," ridges and cracking con normally be expected. Make certain each board forma a true, even alignment when a joint ia formed. When one board is higher than another, it becomes difficult to leave sufficient compound under the tnje covering the high board. Blis ters, bond failure and cracks can easily develop in those areas. Green or wet framing lumber must be avoided at alt costs since warping and racking ia almost sure to result. Lumlier movement, in turn, can cause not only nail "|K>p9," cracks and ridging. but complete failure of the joint. Boards should be lightly butted--neither forced together re sulting in crushed edges, nor spaced widely apart. Open spaces between boards of M * or more should be filled with compound at Iea9t 24 hours prior to embedding or first coat work. Good planning before hanging board will elimi nate many unnecessary joints and will avoid joints formed by more than two boards. PAINTING AND DECORATING--Painting and decorating directions prescribed by appro priate manufacturers should be strictly fol lowed. If decorating problems arise, such manu facturers should be consulted. GENERAL PROVISIONS--Dealers and con tractors should rotate stocks of joint comjwund. Storage must be in a protected place because extreme heat and dampness accelerate aging of the product. Aging, of course, can proceed to point of deatroying performance characteristics of the material. Check date codes. Rotate stock on first in, first out basis. Aa with other crafta, applicators should keep tools clean nnd in good shape to secure maxi mum benefits. Dirty buckets, or failure to wipe down bucket as compound ia used causes scratches, lumps and shortens the working life. Mechanical taping and finishing equipment must be kept in perfect working order and all parts must be replaced as soon as they show the slightest sign of wear. Mechanical tools can often "read the waM" better than the applica tor. Therefore, a competent mechanic with a thorough knowledge of his equipment will con stantly adjust his tools to obtain higher or lower crowns required by particular surfaces on every job. DISCLAIMER Since methods and conditions of application and line are beyond the control of the United States OypHum Company, its warranties of FITN ESS and MERCHANTABILITY as well as any other warranties, express or implied, made in connection with the sale of this product, SHALL NOT' ME EFFECTIVE OK ACTIONABLE UNLESS the product ia applied according to United States Gypsum Company's directions and specifications. United States Gypsum THE GREATEST NAME IN BUILDING .co nsi: 7/C.7 RKfr 1)9 PAT OFF. rrno o?2? A ready-to-apply, vinyl-base joint treatment formulation, for taping, topping and texturing. A product of UNITED STATES GYPSUM c