Document ppe17xkJVZaO819npKqq4O6wE

'w' I V I v vJUUnilL L-/ O' I I W I V I \ L_J/-\OJ v_> Tan-color Bag Holds Durabonu* Joint Compounds, our Rugged-Service Treatment for Special Applications \ \\ ^ . Now Bright Look ... etjccuragtc attectios htips Dea'ers"move"eompvjr.d from thr.r i..% ... Wa tnr, "V.'t itt inr.' 2. New Square Shsp*r!A.df b* cuuix Square-bottom ban are easier to Lscd.t, iv.r more compactly ... save you money id hand. ~i warehousing cotta. 3. New Pfaat/c Uner five* cecum* sup-enc protection. Tough po'.y ft'.m is fncr.UHUj:ai ... resists puncture* . - .f.ftu c" weather, *i>r dirt, other contaminants. Your inv*:cren*. i: U.S.G. materials is better protected from th time you get your order, to the time the ccz. pound is mixed and applied. 4. New Improved Sealing locks in factory freshness, extends abelf life, resists cootamirattthat might prematurely age r&nutu. 5. New Color Keyed Priming give* "Inrtat Identification.'* Choose compound groups by th color of the Wrafl paper bag: brown for Pep.p*.1. Tape*, tan for DuRaBOND*. Choose apphcitto types by the color of the photing: red for Tap:ov blue for Topping or fretn for A!! Purpose. Su/< imple. elective. This easy two-way system *et you tell-at-a-glance which hag coiu.:lj * i compound. Beau fuss and fumbling. Helps t inate mistakes in handling, order-filling, and mix ' ing on the job . . . saves time and money. New, Cloar Designation. All the names wi' read the same way: (a) Our brand name, such a "Perf-A-TaPE" . . . (b) then "Joint Compound . . . (c) finally application purpose: "Taping" ft embedding, "Topping" for finishing, or "AP Pur pose" for Taping, Topping or Texturing. You' order "Perp-A-TapE Joint Compound --Taping . .. the bag you receive will read exactly this wa> Superior Packaging is Only One Part of U.S.G. Superiority Fo>m No J 60 1 2/66 I Pumtd In U S A 1 ) O 'O o S' V^ 1 IS> S' >jj LASTIC LINER IMPROVED SEALING COLOR CODING B ETTERg.ESAG S'! j rhe Rich Brown-color Bag Identifies Perp-A-Tape* Joint Compounds, our Time Honored Standard of Excellence ./Still filled;Withi '\-Same Fine joint Compounds '\ t *' `A " * * / 'a " / * * __ vov!/V>^.1i/ar ' ^j ^ `rt /.7 fs'jirft >- - j yj i. * *-- /r*'. 4 v '' -I ^1 COMING SOOTS... Z'-T A /Vew Family Of Joint Compounds To Meet Your Needs Even Better f-y-1 V '? -J ^UNITED STATES 'GYPl.i i rvi . USG Joint Compound--Topping USG Joint Compound--All Purpose CHAN1CAL APPLICATION: Tha Up- tool ia filled with Dubabomd 90 tod ap- d into ths V formad by the rounded edgee ha SuiRThOCK SW hoard. ' Vs the applicator moves along the Joint mder pressure, it automatically Alls the V iod at the same time removes mesas com- nuod from the eitxemitics of the V. When ha applicator reechos the end of e run or if hare ie a malfunction, there may be some excess compound deposited in areas other tun the V. It ie important that this excess propound is removed, using s hand knife 'or the purpose. ... The Dueaboko 90 in the V is new allowed to harden and the entire joint treated in tbs normal manner, using the materials listed .above in Method 1. .. ,* . '* require that all tools, mixing containers, bread pens, etc., used for their application be thoroughly cleaned before compound hardening action occurs. Some applies tore use pliable plastic mixing buckets and bread pans, and instead of scrubbing or wiping out the containers, they allow the Duaabond Joint Compound--Taping, to harden within lhaae containers, then flex the aides and bottoms, making the entire contents drop out. Tbe email amount of material left after this process can generally be easily flushed out with water. Coniotners mw( if thoroughly clean. - ; Particularly when mechanical tools are used. It ie a recommended that a conventional garden hose with nonlt be available to properly flush end dean ' . Durabomd Joint Compound-Taping end - ,. . Durabond 90 Joint Compound --Multi Purpoee ' from equipment before the hardening action takas . ; piece. Immenion of equipment in water will not ' . prevent hardening of the compound. . PAINTING AND DECORATING Por extra information on SustnocK SW--the wellhoard designed to give flatter, more level joinU end to keep joint deformation at minimum, tea ' . UJS.G. form No. WB-929. , CHANICAL TOOLS Painting and dacorating directions prescribed by appropriate manufacturers should be strictly _ followed. If decorating problems arise, such manu- 1 * Cscturere should be consulted. . v. J *. ' `' ' ' ; . . GENERAL PROVISIONS ` 'V . >matic Taper Remove heed plate and . thoroughly clean uppsr . plunger area. Use narrow, _ stiff brietie brush to clean ' head mechanism. Flush > - ' tuba. d Pump: - - . Pump water through pump until dean. Remove ' bottom screen from pump / and flush thia area of the pump end the screen. thing Boxes: Release plunger plate to simplify cleaning box. <?ra ind. Corner Flush with weUr until <r--Comer clean. . alter: ' of equipment ie beyond our control and, rfore. United Sts tea Gypeum Company iot assume any responsibility for any loss .image to equipment. *' 1 . I ; ' < `- Di/babond, like other powder joint compounds, ie affected by aging. Dealers and applicator* should rotate stocks of Durabond Joint Compound-- Taping, Dueabono 90 Joint Compouod--Multi Purpose, and Dubabond Joint Compound -- Topping, end store them in dry places. DISCLAIMER ' Since methods and conditions of application and * use are beyond the control of the United States Gypeum Company, its warranties of FITNESS and MERCHANTABILITY as well as any other warranties, express or implied, made in connection ` with the sale of this product, SHALL NOT BE EFFECTIVE OR ACTIONABLE UNLESS the product ia applied according to United States Gypeum Company's directions and specifications. E OF EQUIPMENT li other craft*, applicators should keep tools (iiipmeot clean and in good sliape to secure inn beoefiLe. mono Joint Compound--Taping, and - S' - --...........I 1......... .. < United States Gypsum THE GREATEST NAME IN BUILDING JOINT SYSTEM a product of UNITED STATES GYPSUM GP043 02A5 USO Joint Compound--Topping or Ul'U Joint * ' Co'ujmunJ --All thirp***, at any time. ` ?, Also apply finish cwt mstsrinl clt.wsh to , all machines must be thoroughly cleaned out at least every hour, to prevent clogging anti possible breakage. * . N ld, cunwr brsda and Interior angle*, ul\g a hand cnrnrr finishing tool, Di'kakom Joint ` Special Application --Duma bond 90 Conumund --Taping, application nui*l bo ^v*n ' Joint ComiHjuiul--Multi thir^Kwe, usod pf/rVy covnnrd by the topping o*'m*ounJ . ` ` *4% ; with Shkii'kivk' SW Gypaum Wall* . a*toitaJ. . , _ ^ ' |' board as Pre-Fill , v* When Dura won o 90 U applied over Smcktrock SW B, Mechanical Tool Application ' . i ' Durabono Joint Com|K>und-Taplng can be all*' *, (actorJy u**J in mechanical tool*, provided tight. ' % Control la evsrviscd in cleaning equipment. flow* v , av#r, as application U<chniqus using nushatvkal . * \ tooU vary to meat condition*, individual Jobe must . . ' Btiard, two application methods are recommended: .. By hand tools. 9 By a specud type applicator, , manufactured by Anise Drywall Product* Com .. Pny. fi*tl Old County Itnsd, Sen Carlos, California. A mew has distribution points In most pert* of the j nation. . ' be planned and acheduled In accordance with the ' 1. HAND TOOL MKTHOD; Uss a floribte 5* or * hardening time of the cvmtjxjunJ. * # ft* Joint Finishing Knife and Only fUJ in the - V formed by the rounded edgee of the ' K Spot nut] hrajs throughout satire hou*. Com- . ' ' V' SxxwrHOCK SW, Make certain that the ' ^ pound mixture to be heavy for thia application,1 . ' 1' viscosity of the Dukabond 90 la not heavy, ; Obeerve hardening time precautions elsewhere "* \ : -" ^ "" Fourteen^ pints pgr 25 lbs. la our recora- ' I .on bag. ' . k . . '''t-'*" _ mended water proportions; do not use tess ;1 ,' . Mcvhunicalty entire house. tape all joints and angina in Both side* of angle* are treated ' *>w *!." \. ".nUr, \ t' ., ' with corner finishing tool* at thia time. | . .\ ; ' ; ..'V r.` Too-hsavy consistency compound will tend t 1. Apply Durabono Joint Compound--Taping, t . .. ,r.to roll ahead of the knife and cause an ' to all Dus-A-Brad and uaa for op(^yln( ... / * . ' axtruding effect on the compound in the V, 1 Paar-A-BtAD. ' ; _ >. ' ' - ao that the extruded compound may swell 4, Immediately apply first All coat of Dumauond -.VVV. slightly above the joint surface, and thus I 1 Joint Compound--Taping with mechanical ' ; . *f nullify the objective of the SutrTROCK SW . ' toot* over all flat Joints. Thia coat may be af>- *., * *V - , board, which, of course, ia to provide a flat . . plied even though tha Amt coat ia still wqt and *;> .and leva! joint, and to kcup joint deforma-' . unhardened. . ' . ' tion at a minimum. . ft, Apply second coat to alt neila. For leea shrink- \ . age, uaa material which ia approximately one . half hour from final hardening time. . . '' ft, After all the Dukabond Joint Compound--- - Taping haa hardened, apply the finiah coat or - .. final topping coat of Dukabond Joint Com- ' . pound--Topping, USG Kaady Mix Joint Com- ' i pound--All Purpose; USG Joint Compound-- ' 1 Topping or USG Joint Compound--All Pur ' poee over all joints, anglea. Completely cutvrall ' Dukahono Joint Compound Taping with Durabono Joint Compound--Topping. USG * Ready Mix Joint Compound -- All Purpose; ' When the V ie filled in its entirety, it ia .* * i important that all excess compound ia com- . 1- - pletaly wiped off, ao that tha joint ia now - . ' . fins of all but minor traces of compound, - ; except In the V, ^. - v Tha Durabono 90 in the V ia now allowed . - . ' to hnrdsn. Then tha entire joint treated in . the normal manner . . . that ia, apply . ' P*Rf-A-TRPt* ruinforcing tape with an era ' ' bedding and fill cost, then aecond coat and final cost. Each preceding coat must be thoroughly dry before applying another coat. USG Joint Compound --Topping or USG Joint ' Compound--Ail Purpose. ' The following matorisla are recommended in order of our preference for uaa aa tape - embedding and fill coat, and aecond coat: GENERAL APPLICATION-- DURABOND 90 JOINT COMPOUND--MULTI PURPOSE The foregoing application direction* for Dumauond Joint Compound -- Taping, alao pertain to Durabono 90, bearing ia mind that tha faster hardening time of the Dura BOND 90 demands faatar techniques particularly in regard to mechanical tool application. Tha aafa working pariod for Durabono 90 in moat machine* will be generally tee than one hour, eo when Durabono 90 ia used. < -,, 1- .' ` . . Dukabond Joint Compound---Taping USG Ready Mix Joint Compound -- All . Purpose . .. USG Joint Compound--Taping USG Joint Compound--Ail Purpose Dukabond 90 Joint Compound--Multi Purpose . For final coat tha following are racommend- . - ad, in order of preference: - ' Durabono Joint Compound--Topping USG Ready Mix Joint Compound -- All Purpose 9*120 i'lO d O ' . USG Joint Compound--Topping * USG Joint Compound--All Purpose ~ require that all tools, mixing containers, breed .** \ 7 . pane, etc., used for their appliratinn be thoroughly ' ' cleaned before compound hardening action orrurs. * Some applicators use pliable plastic mixing buckets 2. MECHANICAL APPLICATION: The tuping tool is filled with Dukapond 90 And api and bread pans, and instead of acrubbing or wiping . out the containers, they allow the Dukapond Joint '' ' ' plied into the V formed by the rounded edges. Compound--Taping, to harden within these con* '- of the Shsetrocx SW board .T-.{i* * ' *Y: J\k.: .. \, ' tamers, then flex the sides and bottoms, making the - ;A* the applicator moves along the joint1 vv \ entire contents drop out. The small amount of '7 ' under pressure, It automatically fills the V ' ' materia) left aftor this process can generally be ". and et the Mime time nsmoves excess com*''*. " ".> ensiiy flushed out with water. Container* mu*t be pound from the extremities of the V. When , 1 . thoroughly clean.. . .; ' the applicator reaches the end of a run or ifJ' ; Particularly when mechanical tools are used, it is , there is a malfunction, there may he i>omi' v, *" recommended that a conventional garden ho^e with excess compound deposited m areas othar' noxrJe bo available to properly flush and clean . . than the V. It is important that this ex eras compound is removed, using a hand knifa , . 7` -< Durationd Joint Compound-Taping and * ' Durahond 90 Joint Compound -- Mult! Purpos* ' for Use purpose. ,, r r` v- : *J ` ` * \ *,* ' kl' . *, from equipment before the hardening action takes . *.7 ' The Durabond 90 in the V is now allowed* ;j- '?' place, J mmrrzion of equipment in water will not . v . - to harden and the entire joint treated in the ' V prnent hardening of the compound. * . normal mannor, using the materials listed' ;t ... \ ` above in Method 1, . V . >''* *' PAINTING AND DECORATING / * . . ' ` For extra information on SnimocXv 5.' / SW--the uallboard designed to give :/V ; * flatter, more level joints and to keep " - joint deformation at minimum, ass'-'- . . U.S.G. form No. WB 929. W V, Painting and decoratiixg directions prracrlbed by Appropriate manufacturers should be strictly followed. If decorating problems arise, such many* * faCturers should be consulted, ... ,. ; MECHANICAL TOOLS.V^ v.,`* . !',? :> , GENERAL PROVISIONS ' . TV- .* Automatic Taper: Remove head plats and ' ' V.. V Dpsapond, like other |xnvdcr joint com|>ouoda, la . _ .. . thoroughly clean upper'iv'.f 7" ' 'affected by aging. Dralera and applicator* should 7 v.''... plunger area. Uao narrow, ' . rotate stocks of Dubamono loinl Cornixuind -- ' . stiff hriatle brush to clean ' .* Taj'ing, Dubakono P0 Joint Curupound --MulU .' . ; \ head mechanism. Kluab - . , Purpose, snd Dpbamono Joint Compound^ `*7 ", * ,ub** , ' Y ' " V '* Tapping, and store them in dry places. Hand Pump: ' . >. . ' . * ; ' 7 / . ` Pump water, through V.* v`, ` pumpuntUclean. Remove ,\7:\ ' '1 bottom screen from puinp 7` and flush thU area of (Us v** . ' pump and the screen, / ' Finishing Boxes: Others incL Comar Release plonker plats to simplify cleaning bos. . ' Mush with water imtQ . j` . Roller--Comer dean, ,. . Finiahan . ...*' , , * DISCLAIMER ' * ` -, S'ini'e n^ethrals and conditions of appHratlon and use are Iwyond the control of the unit*d 5utea tlvivuim Company, its wsnantirw *f KlTNK^Sarvd hfriiCHANTAlUUTY aa well as any other waitanltea. eiprroa or implied, made in connection with the sale of this product, SHALL NOT MK KKKKCT1VK OR ACDONAMI.K UNI.K.^S (ha . 'r\>hu*t la applied atvording to United Slates iyjvmm Comivxnj^s dilutions And specify at Inna. Care of equipment vs beyond our contnd and, '. ** therefore, United Steles Gy|wum Crmjwny. * cannot assume any rosj'onalbUlty for any or damaga to equipmenL > CARE OF EQUIPMENT . < O o*0 IM As with ether crafia, applicator* should keep toNls and equipment clean and in good shape to e*vurS maximum heneflUu . *., o DuaAnoNO Joint Coinpoun d -- Taping, and Dwiiaimikp 90 Joint Cum|**oiud-~Multl Ihnj^we, 1 . - ~y \ ? > ;< *** - y 7:, *** 41 i.hi- ' `y .. -. \ ;//(i-/'!', | PERF-A-TAPE Joint Systems ';jK [ : ; J. "* .f'lr\. v . *. \ ' / . : A Group of Well Established, Phbsphoprotein (casein-type) Joint ' - v- .Treatment Powder Formulations.^, 'v ; . *J y t ' -'J\r ri , ' ;; GP0<i3 02^8 . - QUALITIES OF A GOOD ' ALL-PURPOSE COMPOUND . An all purpose compound k deigned priacxpaTy for the oooveaienca of contractors and marher, in. who ar* reluctant to concern thamaelva* with two separately bagged products on one job. ' Although any ail purpose product ccgproaAw to some degree ia ccbtdd^g and/or icrying dine- UJ^rJoa. ii orvcrthi do an aMqcxX t-> w, f. ycruc. y>b cd :g, Ui^uxg aid PERF-A-TAPE JOINT COMPOUND --Taping (for embedding) . . PERF-A-TAPE JOINT COMPOUND , ' --Topping (for finishing). '< PERF-A-TAPE JOINT COMPOUND.- ` --All Purpose' (for embedding,. ..-' . finishing, texturing, etc.) ., , ( For quality drywall work, certain essential* axw rw>; t* qulrad. Principally, of course, the mechanic must /' j*:< have inherent skill and he muat know the correct ,t}J procedure* and product* to uee.' lie muat * !*> know^.->y ^ iv.r that theae product* are the beat available, for hi*T,; if'1' joint treatment operation. Such product* ar* .the * component* which make up the Paxa-A-TayE Joint System.:. . ' . ; ... r:-.z(y, QUALITIES OF'A GOOD TAPING V;.' COMPOUND (EMBEDDING TYPE) '' It ie possible to maoufecture a joint compound which will be reaeoaably satisfactory for nearly all ', phase* of drywal! joiot application. Pgar-A-Tapi, All Purpoae powder ia a typical example end aa ' ym good u, if not better than, any on the market. \ *, y\. However, in the manufacture of so-called "triple- "' >r purpose, 3 purpoee or aU-purpoee" powders, a com- -Vr promise muat be reached; eome desirable properties ' : of both embedding and finishing qualities are uau- . ` ally compromised and the end result ia a product'' wluch ia not designed for any principal purpose, end ' therefore, cannot be eij>eclfcd U> give the outatand- ' ing quality result* one looks for in a material produeed with a single and definite objective in mind. Pnnr-A-TAPB Joint Compound--Taping, aa manu factured by United States Gypeum, baa an esaential and solitary function to perform .... embedding. It ia deaigned and produced with thia function in mind, that ia--to bond tape firmly to ' the wallboard and to strongly reinforce the joint. I This compound has the following major characteristic*:' # - Easy mixing * \t \ ' Smooth working ^ , '* Ample working lima **,/. ,v Outatanding bond . ' \ *- Maximum resistance to taps edge cracking <.* f No alkali burning of paint . * '* *. * *. ,i" 'Several days wet-mix lifa *' ; t " , ;' ( Cohesion to avoid droppings . `-i/ . "i ;.** nV' Controlled minimum KrinVagn . ' Prar-A-Tara Joeat Csaepond-AS Pvpat, pc* fairs the fo'Jowicg major characteristics; Easy oelrieg - Ne dkali btreaf cf SauyJi euiccg . ^ /js>ur v<orLxg lim Ra/a lively easy to sand tidxricry bxd _ _ Srvcra) days wrt mix . - \'*ry writable for *. U ' - ' ^ / tertunog, apray.` Relativc?y low 1 ' coaling or skim * >* i ahrinkaga / . . . 1 oca ting *1 ?' v % ' ' . Satisfactory t* p*-adgs . - ..A topping compound muat be manufacturad to give f' superior finiahing results. No serious compromiaa abould be Inatituted, under any circumstances, bo- cause the topping cost is the final step in the drywall applicator'* effort. The euccesaful appear ance of the job, prior to decorating, depend* on the ` proper formulation and the specific design of the topping compound. . ' ,* , - Pamr-A-Tap* Joint Compound-Topping, `as manufactured by United States Gypsum, has an essential and solitary function to perform--finish- ; ing. It la deaigned and produced with this function In mind, and consequently is a superior quality mi* ' leria! containing outstanding finishing properties. This compound has the following major characteristics: - . Easy mixing Easy sanding ' - Extremely smooth Several daye wet-mix working life . , , . Ample working time Controlled, low . ' . Satisfactory bond ahrinkaga . ' No alkali burning of Excellent feathering a 4 paint . HOW TO GET. BEST. RESULTS . WITH PERF-A-TAPE JOINT - ' /COMPOUNDS '\.Ji ' mixing OF JOINT COMPOUNDS:-.,V . Uas a dean mixing cootaiocr and pour rise* drink able water into It, following viler proportion* ia accordance with bag directkaw. , . Add the powder to water, nfiing cmre/uUy to mie> mite compressurn lumps, and apaad da^oixc, . Stir vigorously for 2-3 minutes, until aU the powder . ie uniformly damp, and lump free. Set this initial mix aside and Ut it eosk for at least 30 minutes - ' Oonger if the powder or watex temperatu/v is low). < Virtually ell cue in-type formulations will require ( this mixture soaking time. .* .Thie aoaking period allows all the in gredient* in the compound to go Into solution, and 1 it ia important that full soaking period be carried out, otherwise the chemical* will b trying to go into solution when the compound ia on the joint -- a most undesirable situation, DO NOT OVER-THIN COMPOUND WITH WATER. Eicess water leUi not epead up the stok ing period nor hasten the solution time of the ingredient*; instead it wili teed to encourage ex cessive or delayed shrinkage, and eome Limes even bond failure. . I GP(H3 02 $9 USG Joint System A Group of New Non-Phosphoprotein-bound. Polymeric Joint Treatment Powder Formulations for those who demand the very finest in powder. A new family of Superior formulations that mix faster, stay mixed better, apply smoother, better. Choose from: USG JOINT COMPOUNDS Taping-Topping-AII Purpose Virtually all current "dryiog**-type Joint compounds employ catein as a basic ingredient. Tbs United Stales Gypsum standard of eicellence, Pear-A-Tape* Joint Compounds, are examples of such casein-based formulations. Over the yen/s, PeRr-A-Tar* Compounds have been carefully de veloped and refined to a high level of quality and performance, to which thousands of drywall me chanics can testify. However, all casein-bassd joint compounds do have certain limitations built-into their formulstions. Caseins go into eolutioo slowly, particularly in cold weather. This is why U.S.G. specifies a minimum of 30 minutes wait after initial mixing before uae. All caeein-type compound* have only moderate wetmu etabiiity. Water and pigment tend to separate during the hours following mixing. This necessitates constant adjustments to the mix by the mechanic. These troublesome end time-consuming extra steps are characteristic of all casein-type compounds. Casein-type mixtures also have a distinct odor, particularly after atanding, which can be very annoying to the applicator working in hot, humid enclosed rooms. USG* brand Joint Compounds, the new group of noo-caeeio formulations from United States Gypsum, have replaced caseins with certain advMiu ed chemicals tluit build in s variety of superior jurrformance characteristics. And while virtually all the desirable features of conventional, casein-type formulation such as Pkrf-A-Tape Compound are retained, USG Compounds make available even closer quality control in manufacturing, that means even greater consistency on the job. In addition USG Compounds feature four major areas of dis tinctly better performance: 1. The USG brand Joint Compouoda go into solution FAST; can be used almost IMMEDI ATELY after mixing. An appreciable saving in time is the benefit here. 2. USG Joint Compounds when mixed to a given consistency, will retain that cooeistancy for extended periods; and little remixing, if any, is required to make them completely workable agein. Id contrast, casein compounds "water down" in a short time; and cannot be further used without adjustments being mads. 3. USG Joint Compounds generally have smoother application properties end contribute easily toward producing tight, uniform surface Joints. 4. USG Joint Compound odor is not strong nor sour even after many days . . , s well known characteristic of casein compounds. So wet mix storage, free ofdeveloped odors, and more pleas ant working conditions are the benefits here. In other respects, the USG Joint Compounds will "work" very similar to the existing casein com pounds. Most mechanics show a distinct preference for new "non-caseine", and acquire the "feel" of the new product after using their first few bags. Coverage is significantly improved, and provided the water proportions are kept within the recom mended amounts, shrinkage is less. So hasicslfy all USG Joint Compound products possess these advantages: Long storage life Easy mixing Virtually immediate solution time Smooth working Ample working time Outstanding viscosity stability Freedom from offensive odors, freshly mined or after standing. Good cohesion to ininiinut droppings Extensive wet mix li/s Controlled low shrinkage No alkali burning of paint USG JOINT COMPOUND-TAPING This product is designed principally to embed Pkrf-A-Tapx reinforcing tape; also for fill coats. (It is not recommended for final coata). It may also be used for first and secood coats over nails, and drywall metal comer beads and trim. In addition to the basic advantages of all USG Joint Compound Products. USG Joint CompoundTaping, hse the following major characteristics to provide benefits of convenience, time-saving and satisfaction: Outstanding bond when dry Maximum resistance to tape cracking USG JOINT COMPOUND-TOPPING This product is designed and formulated to five superior finishing results, when used over USG Joint Compound-Taping for finishing or for fill and finishing. In addition to the basic advantages of all USG Joint Compound Products, USG Joint Compound Topping, possesses the following major character istics to produce satisfaction, convenience and time saving benefits: Estremtly smooth working Excellent feathering Easy sanding USG JOINT COMPOUNDALL PURPOSE This product is a compromise on the two bag sys tem, and incorporates some very good lopping end taping characteristics. However, if outstanding taping and lopping results are prerequisite on a job. then products specifically designed from these two separate functions will give belter results. USG Joint Coropound-AU Purpose, may be used for embedding Pkrf-A-Tape reinforcement, con cealing of fasteners and me is! corner bead. It may also be used for leveling and finishing costa, as well as for simple textures. In addition to the bosic advantages of all USG Joint Compound Products, USG Joint CompoundAll Purpose contains the following benefits: Satisfactory bond Good feathering 1 Satisfactory sanding Good tenuring properties I " COLD WEATHER REACTIONS i AND PRECAUTIONS . ( USG Joint Compounds are rt!etive*y tram tgam * many of the mayor problem* Lei LmzU cnaera , user* dunnf co'-d spells. ' For example, when water and/or powder Uwjerv * tuns art low, casein compounds may taka an bur ' or more to go into solution. Lumping is also a pvU f, lem and "salt and pepper^ spots--undieaolved l ingredient*--are often seen on the joints. | The Mnew~ USG Joint Compounds can rxf! ba f ami used virtually imnvod-auly, imrpedire f - . of powder and water temperature, provided U [ court*. these temperatures art at least 5' P above * (reeling. Tbs danger of compounds f/tezing on ' Jointed weUa and ceilings of unhealed buildings . remains, of course. Therefore, during and after joint ccenpcaad atkaa, a minimum ccetrcCad air 1espamUir* c/ P met be maintained at aL* U"*a wr-b'-s tbs working am utC n and building is occupied* I Widely fluctuating tempersUutn (more ties UT l variation) should be avoided. WARM WEATHER REACTIONS AND PRECAUTIONS ` Warm weather vQ not seriously afart the csv CSC* Joini Compounds. ' I Sines there wCJ be no "watering dowv~ tendency, the consistency will rrmsin the same Lour afux hour, provided there Is AO appreciable evaporation. Severe evaporation may cause some et&cning. but hie can be saaOy overcome by d:gbt water addi tions (never more thao I pint per 23 Iba. compcaouL. . A alight stiffening tendency of the Joint Compound may be noticed if they are applied over very warm wall board surfaces. ' This can be minimised by trying to shads wallboard surfacas from direct sunlight. However, this is not always practical, the mechanic will at least t understand the reason for the abnormal stLTcning ! of the compound and can compensate for it where possible. The working time of the USG Joint Compound line is very good, but very high temperatures accom panied by low humidity and hot brae tee may cause abnormally rapid drying just as is the case with casein compounds. Rapid drying can be recognised, because in areas \ I subjected to these hot dry conditions, (especially i heavy fill areas) lbs compound tends to show small hair line, random cracks as it dries. Also, "slifTen- i ing" difficulty may be experienced in running feath ered edges and where one joint crosses another. MJgM of the Up#. If necaaaarv, um azlr* compound for this purpoae to form a iliun coat of Joint com pound over the entire eurfece of the embedded tape, and about one inch beyond the tape edges, feather ing the ezlrerailie* of the application. The entire tape and particularly the edgea must be sandwiched between two very thin layer* of com pound, at thia elage, to prevent tap* edge cracking. At least 24 hour* leter, (longer if drying condition* are poor), apply the second coat over the completely dry first coat, feathering at leaet one and one-half inch** beyond the edgea of the fir*l coat. USG* Joint Compound-Taping, or Topping, or All Purpoae, may be utilized for the second coat and it is recommended that increasingly wider joint finish ing tools be used (rom this stage on, ` When second coat is thoroughly dry, tend lightly end proceed with final coat. USG* Joint Compound Topping, or All Purpose, should be used for final coat. Apply it very thinly with strong knife pressure over previous coat, fea (hering out a t least two inches beyond each edge. Send lightly and dust off; when dry It will be rtady for decoration. . NOTE: Normally, the printed side of Puf-A-Taps reinforcing tape should be towards the applicator during tape embedding operations, but should cir cumstances make it more convenient for the tape to be embedded in the reverse position, the bonding strength 'is not seriously unpaired, provided it is embedded and covered as recommended. SHEETROCK SW WALLBOARD FOR TROUBLE-FREE JOINTS United States Gypsum has a special type gypsum wallboard designed to minimize all joint deforma tions, particularly joint ridging. Ths finished joints obtained with this Sheetaock SW Gypsum Wallboard, sire flatter and more level than those obtained with regutar gypsum wallboard. Shbethock SW haa rounded edgea in tha tapered areas instead of conventional square edges. For beat results, a special type of compound -- Duaabonl) 90, should be used to fill only the V formed by the rounded edges, and allowed to "harden'1 before norma! taping with USG Joint Compound begina. Following this pre-fill step, conventional taping and finishing of the joints is done 86 previously outlined. Dukabond 90 may also he ubed for tape embedding and first fill coats, if desired. (For complete informa tion on SiitETROCK SW and DuraBONO 90 see USG literature pieces WB-929 and J-17.) END JOINTS `' End or butt joints axe treated la much tha midi way as tapered edge joints. However, because there are no tapered edges, ths USG" Joint Compound- Tsplng, end All Purpose, must be built up carefully during tape embedding operations, and greater car* must be taken to assure to 16* of compound below tha tape. - Again, the Pur-A-Tap* reinforcing Ups must be sandwiched with compound by following back im* media Laly over tha embedded tape with a skim coat. . . -. Subsequent second coat, and third coat should be applied over thoroughly dry areas as racommsoded in the preceding Tapered Joints section, szeept that each coat should be fea therad out fcrl}ier--skim coat approzimately half to one inch more, second eoat one to two inchee more, and final at laast two inches more. Total application width should be 14 to 18 inches approzimately. Y . Alternately, ths ITBG Square Blade Joint Finishing ,j Knife may be used for taping anglas. Soma applies - * i'. tore will ascend-coat both aides of an angle at the I . ' game time, feathering out the compound oo each I.1 ' side of the tape to a distance of one and one*hal/ . JfM-bx Other applicators riU secondRostand feather I out om safe only of an angfe at s ue, Vibts wa 1 aids is dry, (la/ return and revea *. the operation *m * i other side. USG Joint Compounds arZI work J astisfsdorCy with either of these menhuda. It . * _ , ! *1 Third coat application wbare neoeaaar* Is oompitted is the same fashion as ths Muhd ocet, feathering out further. USG Joint CompoundTopping, or USG Joint Compound-A2 Pu/pse, must be ewed; and of cour*e, pervious cents must be thoroughly dry Lefts* attempting f.ra! coats. j * Use minimum amount of compound at Lbs apex of \ angle* to prevent "crass*' Of "alligaU*'" cracking. ` i . Final coat is sanded lightly, when dry, and i* than . ready for decora lion. Always keep cents/ buDd up oo any type of joint as low as poeaibt*. A high crown encourages ridging, and sometimes gives shadowed areas. . . i For more detailed informs lino cm the USG Cwier ( . * Tool, *m UaC liter*tor* peace J-&. . MECHANICAL TOOLS -' ' -ANGLES [ Tool technique* vary in discreet areas where Coat both aides of the interior angles with U8G Joint 1 Compound-Taping, or USG Joint Compound-All Purpose, making certain that ths costing eztands over one and od# half inches on each aids of ths angle, and that there a/e no areas lacking compound. Use either a joint finishing knife or USG Corner Tool for the operation. .. " ; ' . mechanical tools are used; and for ths best results, \ . \ '' ths recommendations of the tool manufacturers - /' should be followed. . Jo any rrwt, with ths rueptioe of lode and loci techniques, the same product specifications, ruxo>mendaiiooe, and limitations <feo.jwd onder plication Procedures'* gtna/a!!y appJy. , *: Fold the tape along iLa center crease, and position it i in the engle. Press each aids of ths taps alternately, GENERAL PROVISIONS ; , vr\.. with the USG Square Blade Joint Finishing Knife, ' or use the USG Comer Too), so that compound is squeezed from both edges of tape. Be certain that the excess compound "sandwiches** the tape edges above and below, and feathers out compound about two inches from tape edges. Allow to dry thoroughly. . -1 ' It Is an czcaflsnt Idea to check all gypsum waUbtard ' surface* before commencing to use USG Joint Compounds. , Gypsum wallboard must be FIRMLY attached to framing members, and pa per-cutting by r* *.1 screw* and other fezinkers muat be el a If tbs second coat is going to also be the final coat, . ! . *, Every board should form a tnu alignment where a then either USG Joint Compound-Topping, or USG | * joint is formed. For szampla, when on* board m Joint Compound-All Purpose, must be used. '. f | higher than the one alongside, wherera tapered edge . . is placed adjacent to a non-tapered adge, or wbut For high quality work, three coats are recommended * and required, in which case the second coat applica tion is best carried out using USG Joint Compound- ii . one edge is crushed, it is often difficult to leave j /. sufficient compound under the tape in the high i / board area. Bliaters, short beads, bond failure*. Taping, or USG Joint Compound-Alt Purpoae; but USG Joint Compound-Topping, will also suffice. \ . cracks and lumps often form in such areas. The second coat may be applied with ths USG | ' "Green,** wet or damp framing can causa warping, cracking, nail or screw "pops" cracking and rtdging. ( Corner Tool so that both sides of the angle are 1 coated at the same time, using the blade tips and V . Gypsum board edge* or ends should be allowed to narrowing application to one and ons-half inches on t * abul normally, without being forced, , either aide of comer to prevent compound squeezing , ` Open spaces between boards of K * or more should beyond edges of tooL *, be filled with a heavy consistency compound at least For lower part of comer, the Corner Tool should be I - 24 hours prior to embedding tape. If DinLABonu 90 reversed and moved upwards from the floor. I ` (see USG literature piece J-17), a special fast- j hardening ty|>* prefillar, is used to fill epacca -- then, ;t of course, e 24-hour wait is not necessary. PERF-ATAFE Joint Reinforcement For Gypsum Drywall Construction Spark-perforated for more perfect embedding BACKGROUND OF DRYWALL JOINT TREATMENT Gypeum Drywall construction ai we know it haa ita roou in construction during World War I. It began with the introduction of SaCEETT* Plaater board, followed shortly by the industry standard of excel* leoce, Sheet*oca Gypeum Wallboard, and more gradually by many related materials and lech* niquea-- drywall systems--pioneered by United SLa tea Gypsum. Customer preference for mono lithic wall surfaces continued, which ltd to devalop* ing methods of reinforcing sod concealment of joints formed by the abutting edges of wallboard pa oels. At first Plaster of Palis was applied direct as a primitive joint treatment, but joint failures ware the rule rather than exception. United States Gypeum began ita continuing pro gram of research and development of joint treat* ment products and methods that continues to this day. During the early 1020'*, the first joint com* pounds were made available by U.S.C., and with the introduction of the U.S.G. reinforced joint eyetern, the first complete joint treatment "package" was offered to the trade. Cloth Mesh Tape, the first reinforcing Ups, was combined with existing U.S.G. joint compounds. But the deficiencies of tha cotton gauxe-like re inforcement led quickly to the introduction of punched zinc metal tape that featured exceptional strength. While Metal "A" Tape enjoyed consider able popularity, it waa simply too expensive and hard to apply, to survive. The year 1937 marked a major milestone in joint treatment progress, with the introduction of the Perf-A-Tape joint system, baaed on new paper reinforcing tape. Pat>r used in manufacturing Perf-A-Tape rein forcing tape*has cross fibers built io, for strength arid sLabdily. It is treated with fortifying additivee that further improve strength, especially wet strength. Pesf-A-Tap* is actually stronger than its minimum specified Unsile strength of 30 lbs. per inch. It resiaU stretching, puckering or other dis tortions so thst it remains flat and figbu accidental tearing during embedding. Used with rscommeoded joint compounds, there is no better way to reinforce and conceal drywall joints--or make rape ire. AU joint tape ia perforated, to release air entrapped under Upe aa it ia embedded, end to speed drying. Without perforetions, Upe would devetop blisters and not properly bond to board. Perf-A-Tape Re inforcement waa originally mechanically punched, but these relatively large holes sometimes "photo graph" or ahow through joint compound and sub sequent decorative materials. In 1945 U.S.G. Introduced and paUnted the ob viously needed, better method of perforttlng: spark perforated tape. Spark perforated reinforcing Upe ia still a U.S.G. exclusive. Tiny sperk perforations allow aur to relesse from under the upe as it's spplied, but srs so small they do oot show in the finished job. Tape shape ia another imporUnt factor in produc ing a better joint treatment Upe. Conceivably, joint Upe could be made with a Uper that exactly matched the Uper of the board it's going over. In practice this is not needed, nor always desirable. Perf-A-Tape Reinforcement has a controlled Uper acroea iU width. It is about 1/100th inch thick at tha center, Upering to about half thst thickness at the edgea. This ia achieved by a series of precision milling operations that also give "tooth" to the sur face. Controlled roughening improves compound adhesion. The machine-made Uper reduces wrin kling or curling that can lead to edge cracking. You get a flatter, smoother, more durable and trouble free treated joint. Perf-A-Tape ia ironed for amoothneas and factory creased for easier application of Upa to inside corners. Tape width is controlled within l^nd inch to assure smooth feeding from mechanics) tools. Moisture content is slso controlled. GP043 0251 The dimensional change of Pfir-A-TiPl reinforc ing tape as manufactured, is leas than 1.0% lengthwist after the Upe is wetted and redried. This excep tional stability helpa assure consistent fine results. Perf-A-Tape spark perforated reinforcing Upe conforms to ASTM Designation C474-64, A.S-A. requirements A97.1 -- 1958, UDC 691.31 and Fed eral Specifications SS-J-570A, Type J1 (GSA-FSSj. APPLICATION--HAND TOOL Tapered Edges--Using a joint knife, butter joint compound approved for "Taping" (embedding) into the channel formed by adjoining Upered edges of gypsum well board, filling channel fully sod evenly, but avoiding heavy fill. The edge Uper on Sheet*ock gypsum wall board Is precision made-- not too deep and not too shallow--to insure that the correct amount of compound ia deposited into tbe channel. Now, immediately center and apply Pcrf<A-Ta?b reinforcing Ups into the channel. Press the Ups down into the fresh compound with s drywall knife, by holding the knife at an angle of approximaUly 45' to the board. Draw knife along joint using sufficient pressure to aqueexs some compound from edges of Upe, yet leaving enough for sufficient bond. As a guide, there should be 14/ to l* com pound under tbe Upe. Msks sbsoluUly certain that the excess compound, squeezed from under the Upa edgaa, ia now spread on the outer surface of the tape. If neces sary, edd extra compound onto the Upsd joint. As eooo as tbs Upe Is fully embedded, a further thin or "skim" coat of joint compound is applied over and about one inch beyond taps edges, feather ing out smoothly. The Upe edges must be sand* wiched between two very thin layers of joint com pound at this sUge, to reduce the chsnce of edge cracking. Now, allow the Upsd joint to thoroughly dry be fore applying the next coat of compound --at least 24 hours -- longer if drying conditions are poor. SW Edges--Uee a flexible 5 in. or 6 in. Joint Finish ing Knife and prefill with Durabond* 90 Joint Compound -- Multi Purpoae, only in the "V" formed by the rounded, eased edges of the Sheet* rock SW board. Once the prefill compound hae hardened, the balance of the joint proceeds in a conventional manner. (See U.S.G. technical litera ture piece fJ-49 regarding special instructions for using DuraBOnd 90 Joint Compound -- Multi Purpoae.) APPLICATIONMECHANICAL TOOLS Tapered Edges--Toe bast naulU, the mwamafs* linos of tha tool manufacturer should jx followed. It ia.Important that tha Par-VTA/t reinforcing tap* ia oraUrad us tha middle ed a .joist* Xs pared u end joint of board, a/d that thoe a appL+d szswx *4/ to *4# >/uat crxB pound under tha Any nrw compound aqutoaod fitw w/o tbs edges of l;a upe sU lreUd tha ocur surface sod tha edges of tha Ups, itk d tLs volvca s hand application ixd the use of ertra coopoumd. Tbs Upa must be mndw-jchad between two very thin layers of compound. Leave the Upered joint until thoroughly dry Ufire proceeding with subsequent costs. Where surface* InUnset, such as waU-to-cdlAg, it is imporUnt that any type of machine used at these inU/eectiooa extrudes sufficient compound cm each side of the corner so that the Polf-A-Tat-* reinforcing taps is firmly embedded. Tbs taping machine must fold Upa being so both aides of this folded Up* are applied in Inn contact with intersacting wallboard surface*. When the Up* is completely sandwiched litsnu two vary this layers of joint compound, wfch an absolute minimum of compound at the internal Vmi, the entire angle ia left to dry thoroughly brfrns proceed ing with the next operation. SW Edges--Vm a spedal type applicator. ---- fecUi/ed by Ames DrywaU Products Company, !A\ Old Country Road, San Carlos, California- It ankr rustically prafills the "V** formed by the rounded. eased edgea of the Sheetoock SW board. Once tha . prefill has hardened, tha balance of the joint work proceeds in a conventional manner. Por information on tha subsequent eUpe toward finishing tha joint work, consult your U-S.G. repre sentative or U.S.G. literature pieces J-9, J-GO, J-17. and J-47. QUANTITIES ! Peif-A-Tate reinforcing Upe le available in the following eicee: 1 60 ft. Poll--Ideal for tha occasional, small drywaC 1 Job, for patching work, ate. j 250 ft. Poll--TTia popular for hand appUcatiot ( joint treatment. Handy to carry around--weighi i leaa than 1H lbe. ie DURABOWD Joint System ` "" . a group of "one-day," Polyindurate (extremely hard) ' joint treatment powder formulations - CP043 0? 5 ? utiBONV Joint SytUn pnnals4^ of Dinutoxo - int Compound--Taping, i hardening typo mo- rial for th* embedding tad fill coats; Durabond int Compound--Topping, or USG* Reedy Mix . . - int Compound--All Piftpooe. drying type me- - . dale. for the fidihiog coat, end Durabond 00 * ini Compound--Multi Purpose, for apeciil - % plication. ,. .. 'I . . . v.'.V1.; ' 8. Ob a proparly acheduled job, the gypaum waD- board and accessories can be tapwl, filled and ' finished--all in one day; or, if desired, the . Duiabond producta can be used aa a two or . more day system. . -. ' I. The Durabond Joint System Incorporetaa all ' . tbs qualities dmired in good joint compounds, .- ( v auch as the following: ` - /HAT IS OURABOND 90 JOINT ompound^multi. purpose?; , ` * * * Ample Working Time' ' '. Good Bond . , Easy Mixing * * . Duubond Joint Compound with hardening . ' : ' Minimum Shrinkage ' 1 . me approximately half that of regular Durabond >7. 'v- * ^.' ,k \` Smooth Working ` dot Compound--Taping. * .- ' , Maximum Reaistance to Edge Creeks uiabond 90 Joint Compound--Multi Purpoeel^ ^ ! ; ' Easy Sanding of Finishing Coat in be u*ed in exactly the eamt manner aa rtgular'/v'f'. i` 't .-'V Controlled Hardening of Durabond -. ii/aahond Joint Compound-^Taping, with the ime beoefita except that provisions will have to be .i \ lt ' ade to accommodate the fatter hardening time.-i' *- I ' ' Joint Compound .*' .: . Cohesion to Avoid Droppings' ` *. . No Alkali Burning of Paint , . iukahohd 90 la tba product specified by United La lea Gypsum for uaa aa a pre-fill or first coat over .* iota of Shcittbock* SW Gypaum Wallboard. ,' j' .. *' But, tn addition, Durabond Joint System provides particularly outstanding performance In . . , i addition, Duma bond 90 is recommended for. } reaa of heavy fill auch aa unusual gape, holaa. low '/*. i -' jk>Ls, nails or other areas of repair work where a ^ 0* j V BONDING STRENGTH: Duiabond Joint Compound--Taping'# bond actually increaeee to its maximum as it dries. Once hardened and dry, uter hardening time ia a diatinct aaaet. t. . .. *'*.* ! . the bond of Durabond Joint Compound--Teping, VHY DURABOND JOINT SYSTEM 'f' eurpaaaes that of conventional drying type embed ding compounds. . . ' ,. S DISTINCTIVE . . "J,! MIXING ABILITY: Durabond Joint Compound . The key producta ara Durabond Joint Com- > pound--Taping, and Durabond 90 Joint Com- ; pound--Multi Purpoaa--hardaning type 1 materials which achieve appreciably higher : Lrengtha than conventional compounds auch ' aa Perr-A-Tapic* or USG brand compounds, and are used essentially for the embedding and ' (ill coat operation!. --Taping, Durabond Joint Compound--Topping, and Durauonp 90 Joint Compound--Multi Pur pose are easily mixed producta. Just sdd to water and stir into solution. The mix may then be applied immediately. Another asset which is quits unique and not poaaetuied by the usuh! jointing materials, are Durabond Joint Compound--Taping and Durabond 90 Joint Compound --Multi Purpose's somewhat indifference to water proportions. We . DiihaBOND Joint Compound -- Taping, suggest certain water amounts for beat results, but DuraBONO 90 Joint Compound -- Multi Pur- if some alight deviations are mads, this is not at all |A>ae and Durabond Joint Compound--Top critical because these two joiot compounds will still ping, are formulated to work well with each harden at much their same rate. There will be no ollitS', and are completely compatible. appreciable increase in shrinkage from minor amounts of extra water, and you will still bo able to finish over the hardened joint with no fixes loos. SHRINKAGE: Unlike conventional drying type compounds, ths shrinkage of Durabond Joint Compound --Teping and Durabond 90 Joiot Com pound-- Multi Purpose are extremely low and ara therefore, ideal for heavy fills. Three two joint compounds permit no delayed shrinkage once the hardening is established; however, conventional shrinkage may result if either of these two joint compounds ia allowed to dry out before it hardens. This condition usually results when dry winds are allowed to blow directly on to the unhardened joints. RESISTANCE TO HUMIDITY: Dl-rarovd Joint Compound--Tepiog, and Dura bond 99 Joint Compound --Multi Purpose are chemically con trolled. 'Hie rate of hardening is virtually unaffected by cheogre in humidity, or high humidity. EDGE CRACK RESISTANCE: Durabond Joint Compound--Taping and Durabond 90 Joint Compound --Multi Purpoaa have excellent resist ance to edge cracking; are virtually equal to USG* Ready Mix Joint Compound--All Purpose, In this respect.' SANDING ABILITY: Easy sanding U a moat desirable property for a finish coat. Durabond Joiot Compound--Toppiog, sands so easily that many drywall contractors will use a sandpaper of a finer grade than normal and obtain a smoother, scratch-free finish with leas effort. Bo the Durabond Syltccn has three distinctly superior features and benefits compared to other Joint Systems: ,. 1. Baca use it mixes easily sod can be used Im mediately, there are savings ia time and labor. 2. Because it shrinks leas, there are further savings in material, time and labor. 3. Because tbe compound is not dependent on perfect drying conditions, there are more aa vingi in time and labor. 4. Because the topping compound sends in a superior fashion, there are yet more savings in time and labor. PREPARING MIX FOR APPLICATION DURABOND JOINT COMPOUND- TAPING Mlx in a clean 5-gaIloo container. Sift the powder into drinkable water, using quantities shown below: 25 lb$. 1. Hand Tool Application 13 to 14 pints 2. Mechanical Taping Devices 17 to 16 pints 3. Mechanical Fill Coat Devices 16 to 16 pints Stir rather riforauaV far bo man than 2 mJamim, 1 veekmg tun sL* the coaxpound it cr-'irrJj datrp. If toy Iwtcb lump* tn prsawnl. allow Lne mix to xejmk foe a minute or two. Hexoil the command until smooth, and it is rtody for use. I Do not allow the compound to be con la nuns tad i with any other matenal, cspedal! y other type jo-*Jt 1 compounds, or with dirty water '-*cb as used for } cleaning tools/, or even fragments or sjepevA~'>as 2 previously mixed Durabond compounds. Do not 1 ' intermix with previously prepared DviAVart Joiz.*, Compound--Taping. The quamJsy / I>VRAa*aea> Joint Compound-- s be rr.Msd should greet tt rose* timi a uai ; on he red caxJy wrthis r pec fcucnrag the bx (This is ututZy xioit urw ' hours, usleas otherwise sis led on the bag,/ Durabond 99 hardrae in shout 1H hours. Tiarw I fore, mis enough Durabond Joint Compound -- 1 Taping, In las! 2 hours, enough Durabond V0 to , last 1 hour. This gives some leeway. | Tbs compound wiD harden chemically even cinder water, so do not attempt to hold in wet mix or immerse Durabond Joint Compound--Taping I costed toots in water in an attempt to bold back I hardening. ! Durabond Joint Compound--Taping aod j DUBAnoRD 90 Joint Compound -- VuJti Purpose, . perform weli unde/ moot dryiog conditions. Three .1 hardening formulations will work aatiafactorCy . j under some weather conditions which would cause ! , failure to conventional com pooode. The . , ha/droiog ectiou ia unaffected by cudutea df . ^ . high humidity, and although low air and/or waZ I * temperaturre of approximstely 40* to 56* 7. may ! a (Tact Durasond Joint Compound'* initial bead ! ones heat applied and the taped joint dried, bond j will generally return to e aelufactory level. IfowI ever, it is suU our recommsndetioo that minimum ! air and wall temperstura of 65* 7. be maintained 1 at all times. I Tbi* give* applicators an extra aaargia of ;} aakty, should ih room uaprrtluria acci1 dretaily drop into lh lover UnptrtUira j raaga a/tar DuraSOhd Joiot Compound -- I Taping, has been applied to 55* urnpera- turco or abovr. T>>ia extra aefrty fector Ihoutd not be deliberately tUuod by apply, ing Durasond Joint Compound--Taping, . in temperaturas undar 55* Y. Too rapid drying oo conventional compounds (especially heavy fills) causes severe shrinkage and cracking. Rapid drying has no effect oo Durabond Joint Compound--Taping or Durabond 90 Joint Compound --Multi Purpose, once it it hardened; but if it dries before hardening, conventional shrinkage may occur. Applicators will recognise fast drying conditions, because the compound takes on a shorter working ./ ttt>mUh| period, ghr (1m mix farther 'l' iuu stir to brio* it to t ottay smooth " .J vary, reedy faf*ate. -- * >,( ,4 ^ <' . It is imporUtt tint ftho mhrfng moo alma' Vetvy consistency it tho tad of the totkinf * (. for then ho at odd cImb voter, to bring' * iture to ito required consistency. If be mime >om or "soupy" consistency end then boo to ' -w >wdejr, be must voit soother 90 minutes,; : imsleJy, to allow the added powder to go' ; ' lutioo. ' j '* > WEATHER PRECAUTIONS ~. ' ' ' - - \ V f ,. iog water to cold or if the dry powder has . j. Lored in temperaturee below 55*F. just prior jngt iKm the wet mixture temperature will / 'cepondiagly low^*, A ::\i . % TEXTURING . . . ' *. * Many Drywall applicators will use Pxxp-A-Tapx :'r Joint Compounds, especially All Purpose Com- ^ `l |* ; pound, as texturing materials or as e ihle coat ' * V; finish; with very satisfactory results. Light ! medium textures are readily obtained, usually with* \,-' tout further additions being neceeeary. Where peLnt - - or other, similar additions are desired for tinting, ' "r - etc., consult the appropriate paint manufacturer. In some areas, coarse textures, too, can be sc- ' * ; . , compliahed without too much msni pula tion, but in : ' th'f letter instance, we would recommend that a ' local U^-G. representative be cootseted for advice. # ' {, . Where spray tertures are desired with Pxap-A-Txyx .'"Joint Compounds, most spray machine menu-*7;.. . ' . fecturers can furnish preasure, notxls, water seU' -~> itings, etc., or other relevant information. . - . ' ~ -Vr . (.\ such conditions, 'mixing will be somewhat t. sola don rate (snkhi| time) wi9 be n-" PAINTING AND DECORATING . - . considerably, and the mixture may tend to Mery end grainy. . y, ' ** , ` Painting end decorating directions prescribed by; - eppropriete manufacturers should be strictly fol-^.,. ;'.i = RAL CONSIDERATIONSV'.-; . ; - t - ... im board edges or ends should be* allowed to'?-*-' ' ' " lowed. If decorating problems arise, such menu- facturera should be consulted. ' BBPORE. DURING AND AFTER Pxr-A-TAr - -"i. ^ . , - . ' :S.f.v. ' normally, without being forced together, yet'?' V iVir JOINT SYSTEM APPLICATION, A C0N-V- .'t T; ihould not be spaced too far apart..,' i;:iVjy,#i'V r o! TROLLED MINIMUM .TEMPERATURE OP -Cf S-VV,;^ Z ppacee between boards of H? or more should >'/y. ' 1>R6--,---6---0--`-P--. -M---U---S---T-----B---E- ---M----A----I-N---T- A-I-N----E---D---`AT AL~~L..^f-W,- ed with a heavy consistency compound at ; . TIMES WITHIN THE ; WORKING AREA 24 hours prior to embedding tape. *, .* * ", UNTIL-{MATERIAL IS DRY AND DECO-'^V'J VW RATED. WIDELY PLUCTUATINO TEM- ',1' Compounds are affected by'aging, therefore, >V<PERATURES (MORE THAN I5`F.. VARIA-'V ' rs end Applicators should rotate slocks and : jv ' 'TION) SHOULD BE AVOIDED. ,, : , ; U.;:!1, material in dry places.- Pajr-A-Taye Joint'?' f'r&i'f'J'L''-trl'-: louiuls era not affected by fleering tempera-'4. ^COMPLIANCE"WITH FEDERAL GOVERNMENT?' *. in their powder state, but they will give best.-ft,* '/<V SPECIFICATIONS A A.S.T.M, OESIONATION8 !.' a if brought to a temperature of 70*F, juat,'#^ .. > . . f to using, by storing in a heated area. ObvM/it. , cold powders when mixed with water will;' the water temperature.'^ -.> .iflyj? * * t *u.r*t V# Prir-A-Ttri Joint Compound* described In kjr Literature piece use casein aa an ingredient.,' `t. Pxnv-A'Tap* Joint Compound will meet A.3.T.M, ;>*, Dmlrnation C 475-64, AjA. requirements A 97.1- ' ' f`, 1958 and Federal Sueciflcatione SS-J-670A; , *i J (CSA.-FSS). ' .. . ....D.I.S..C..L.A..I.M..E.R.........*.V.:... 11.'., :n compounds manufactured by United States ;'*y `i i 8ince methods and conditions of application and um ere compatible with each other, although ' j > not recommend in ten-mixing. However, their / 'f `V use axe beyond the control of the United States Gypsum Company, its warranties of FITNESS, V..;,- etibUity is such that should an applicator, for *' ' i and MERCHANTABILITY as well ax any other i^-.1 pta, decide to embed with All Purpose andV/*i^ i . J*\warranties, express or implied, made in connection t with Topping or Embed with Taping end i with All Purpose no adverse effect due to- l** y , with tbe sale of these products SHALL NOT BE \ EFFECTIVE OR ACTIONABLE UNLESS tbe yft / v' Products are applied according to United States Wi^i.tfugv^ npetibQity will result, r^ I . > Gypsum Company's directions and specifications...{^a. t j , . tv.-r .*r. V'V5;-?` \Wk v* . v. t :*#** rriON: VERY UNSATISFACTORY RE* \ rs MAY OCCUR IF COMPOUNDS NOT* v- '. JOINT\ .1,, 1 -? ; ' f.!|<;; . ' i SYSTEM U.8.G. MANUFACTURE, OR COM-- - i IND3 CONTAINING NO CASEINS,:' ELUDING USG* BRAND JOINT COM-'. v I -' !'. 'i\A JNDS) ARE USED IN CONJUNCTION r V. M Pxat-A-Txpx JOINT COMPOUNDS. AS -v.| fJI l)K, ALL PRODUCTS USING THE ^ OK MARK "Pxar-A-TAPX** ARE COM-'*'*' MILK WITH EACH OTHER. v . 'i ., . r. .. . . . .i-i.r .s i ^ s.uCi / Uwited States Gypsum THE 3REATE9T NAME IN BUILDING' , a product of UNITED STATES GYPSUM ; ! <n ov o