Document Xzp3xyvkJ3Gz7Jd2rX1RYnY9K

UNITED STATES GYPSUM COMPANY 300 West Adams Street Chicago PLAINTIFF'S EXHIBIT SPECIFICATIONS AND COEFFICIENTS OF SABINITE ACOUSTICAL PLASTER taken from Official Bulletin of the Acoustical Materials Association, Bulletin No. Ill, July, 1935. Material Coe ffleleatt **! Thick- Redaction ness its 266 Bit 1024 2044 Co.ffl.1..* Vueber of Coats l.x Ooat n. f dry acouetleal Fleeter per s.i*. Applisettoa Sarfaee Troatnest Sablnlte A Aeeu rtlaal Fleeter lablolte A Aeee atleal FI a star Sablnlte 56 Aeee stl aal Flatter i/* v* .54 .30 .31 -. . .56 .37 .58 .25 .26 .52 .31 .T .90 .69 .67 .T .CO .u .CO lrt .o.t 1/4* 0P 2nd seat 1/4* piaster lit ...t 1/4* gyp suu tod mt 1/4* plotter 1st eeat 1/4* 'oriental tad Mat 1/4* staaao IS.3 lb*. 29.4 IS.4 lbs. 2nd coat applied ae 0009 as 1st ooat had sot. 2nd and 3rd eoats applied at Interveil of 1 days. Sane as above. floated with eork fleet. 5aue ae above* Sana ns above. *Tbe noise reduetloo coefficient is the average of the eeefflslants at frsqaanslas froe 256 to 2046 eyelas loaluslvo, gives to the nearest 5f. This average eoeffiolest le re seconded for ess in eouparlng eatarlalt for noise quieting purposes as In offloes, hospitals. banke , corridors. ete for aadltorlaa troataent. attention shoeId be dire#ted ts the soefflelents et fill eyelet and other freqaenoles eg erplalaed elsewhere. Each sample ef aeouetleal plaster wet ulrsd and applied by a skilled plasterer, eeeordlng to speelfloatlons furnished by the naasfaetnrer. The aeouetleal plaster vae applied to panels nountad on s eelllng under eoodltloos tbet sight be expected to exist os normal jobs All samples were applied to a 5/4* dry base aout on netal lath nailed to 1* * 2* rurrlat. Tb. panels so uade were laid em the flour of the Sound Chamber for tests. SPECIFICATIONS got*i lotee are explanatory or advisory only tad should not bo lueludsd la tht speolfloatlons. (i) ngfi gotoi Urt tad looeta all nll# tad oelllngs to bo covered with Sablnlte Aoonstleal Flatter. If Sablnlte A* B tad Stblnlte go. 36 are teed, liat tad loetto nwperately. If different color* of Integrally tinted Stblnlte are need. specify the odors for the various areae. (*) QBOggpj On eelle, la addition to the ttaal ground! set for tho eeretob tad brown ooat planter beet, eat additional 1/2-la or 3/4* think ground* to assure proper thloknees of the Stblnlte and font nailing for wood trlu. eto. All eorner betde shall be eet to oonfora to the laereaeed pleeter thickness. (3) ACOVSTICAL_rPEATKnrr MATSUAL (3a) Aooustisal Treatment mtcrial shall be (Stblnlte A) (Seblnite B) (and) (Bo. 36) Stblnlte Aoouetloel Fleeter et aamfeetured by the United States Oypsu* Company. (3b) Seblnite ehall be lntegrelly tinted by the aonufaoturcr at the mill. Ante 1 Integrally tinted Stblnlte rtould be a nhada lighter than the ease oolor would be In paint bncause the texture of Seblnite easts a slight darkening shadow* (4) JpATOI AID STOW* COAT (4a) Stblnlte a aod B - All walls and sellings to reeel re Stblnlte A (tad B) shall be glean a eoretoh and brown ooat of gypnia wdeeter containing not aore than two parte of sand by weight to one part of plaster* (4b) Bablnlte lo 66 * Rydraalle Stblnlte shall be ap plied over (Oriental Krterlor Stuooo) (Gypsun) Baee Coat. Bote> Oriental Exterior Stueoo Baee Coat Is a prepared Material requiring no sand or other addition exoept water. It Is applied In eoats In plaoe of the reg ular eerateh aod brown eoats. Dee where hunldlty 1s severe. (4o) The eeratoh coat ehall be thoroughly broomed before the eeeend or brown ooat is applied. The eeoond or brown ooat shell be deeply raked after straightening. (5) ATFUCATIgH PI" 5AJUHITC The application of Sablnlte shall only be made under the supervision of the United Stateo Qypsun Company. The plastering oontraotor shall arrange with the nearest sales offloe of the Uhl ted States Oypsua Company for the servlolng of Sablnlte and shall not oonveenoe Its applloatlon until so directed by the manufacturer's service rspraeentatlve. Seblnite shall be applied In two (2) or 3 ooat* each 1/4 in. tblok over a thoroughly dry bane ooat. Each ooat shall be sat before next Is applied. The Instructions of ths eervlee representative for floating, and troweling eaoh ooat shall be obeerred throughout ltd applloatlon* m i w o jo