Document LJ6aoymEM2eYekEaRRxLrgwD5

PLAINTIFF'S EXHIBIT description Basecoat plasters provide a plastic working material which will conform to most designsand help achieve the ultimate in durable walls and ceilings. They can be applied either by hand or machine methods, on gypsum or metal lath; gypsum or clay tile: concrete or cinder blocks, or other approved plaster bases. United States Gypsum, the leading producer of plastering materials, offers a line of seven outstanding basecoats that enjoy the solid preference of the marketplace: RED TOP Gypsum Plaster is a "neat1' gypsum basecoat requiring the addition of aggregate (sand, vermiculite. perlite) and water on the job. Supplied in three types: Regular--for use with sand aggregate, hand application; LW--for use with lightweight aggregate, hand application; Machine Application--for use with sand or lightweight aggregate. Not recommended for use with perlite aggre gate when machine applied, with vertical lift over 30 ft. or hose length over 150 ft. RED TOP Wood Fiber Plaster contains fine particles of selected wood fiber, normally requires addition of water only. Develops higher strengths than conventional gypsum plasters. When used over masonry plaster bases or for machine application, 1 cu. ft. of sand per 100 lb. of plaster must be added, and when used as a scratch or brown coat, 1 cu. ft. of sand may be added. Wood fiber plaster can be applied to all standard lath and masonry plaster bases; strongly recommended as a scratch coat for metal lath. RED TOP Two-Purpose Plaster requires addition of ag gregate and water on the job. Suitable for either hand or machine application with sand or lightweight aggregate meeting ASTM C35. Not recommended for use with per lite aggregate when machine applied, with vertical lift over 30 ft. or hose length over 150 ft. STRUCTO-BASE Gypsum Plaster develops higher strengths than conventional plaster. Recommended for such areas as handball courts, hospital corridors, schools, etc., or wherever a high-strength basecoat plaster is neces sary. This product is U.S.G.'s No. 1 recommendation over metal lath, with scratch coat sanded 100:2 (100 lb. plaster: 2 cu. ft. sand) and brown coat sanded 100:3. STRUCTO-LITE Gypsum Plaster, a mill-mixed perlite ag gregated gypsum plaster, requires only addition of water at the job site. Formulated in three types: Regular--for use over gypsum or metal lath; Masonry--for use on high-suction unit Top-grade plaster job starts with proper basecoat. i masonry base only; Type S--for use in a specific assembly requiring an Underwriters' Label. STRUCTO-LITE weighs less than half as much as sanded basecoat plaster; has a "k" factor of 1.74, providing three times the insulation value of sanded plaster. Over-all cost is comparable to job-mixed lightweight aggregate plaster. Not recommended over metal lath when a smooth trowel lime finish is to be used. It may be sand-float finished, or used as a base for acoustical tile. Not recommended for machine application with vertical lift over 30 ft. or hose length over 150 ft. IMPERIAL Basecoat Plaster is used where two-coat ap plication and a high-strength veneer plaster finish are preferred. Can be applied to either IMPERIAL Gypsum Base, directly to concrete block or over a bonding agent on monolithic concrete. Formulated to receive IMPERIAL Finish Plaster, DIAMOND Interior Finish, gauged lime put ty, high-strength STRUCTO-GAUGE Plaster-lime, or Keenes (Continued on page 21 UNITED STATES GYPSUM B B O l3 0268 Basecoat Plasters Cement-lime-sand Moat finishes. Available in machine and hand-applied formulations.-Machine-application basecoat is spray-applied in a patented process. ADVANTAGES Types for all systems. U.S.G. Basecoat Plasters are de signed to provide a durable, compatible base for finishcoat plasters in a variety of systems. Specialized types suit standard and veneer finishes as well as super-hard surfaces for high-abuse areas. Fire protection. Gypsum plaster, properly proportioned with approved aggregates, and used with specified plaster bases, provides excellent fire protection. Sound isolation. As used in various systems, gypsum plasters offer sound transmission loss characteristics suitable for most requirements. Sanded basecoat plas ters provide the optimum results. Control of set. RED TOP Gypsum Plasters are formulated for use with market aggregates, climatic conditions, and job conditions. The quicker a gypsum plaster sets, the stronger the basecoat. All components from one source. All components for most plaster systems are available from one reliable source--United States Gypsum--and are designed to work together. Controlled quality for top performance, ready availability and expert technical assistance are part of the package. limitations 1. Where sound isolation is the prime consideration, sand aggregate only should be used. 2. Over interior monolithic concrete, a high-quality plas ter bonding agent should be applied before plastering. 3. Gypsum plasters should not be used where they will come in contact with water or excessive moisture. They may be applied to exterior soffits that are protected from direct exposure to rain and moisture, and have suitable drips and casings provided along edges. 4. Plaster application on masonry or concrete walls, or ceilings that have been coated with bituminous com pounds or other waterproofing agents, is not recom mended. Exterior walls should be furred and lathed prior to plastering to prevent seepage and condensation. 5. Basecoat plasters must not die or stop against a hol low metal door frame return. Provision must be made to dampen the trim return vibration by grouting, and by the use of special anchors. The grout must be raked out to allow lath and plaster to be inserted into the frame. 6. Basecoats containing lightweight aggregate must be finished with an aggregated finish plaster. 7. The plaster product recommended for the embedment of electric heat cables is jobsanded DIAMOND Interior Finish. ARCHITECTURAL SPECIFICATIONS notes to architect These are abbreviated specifications for basic basecoat plaster application. For additional information on related products and assemblies using U.S.G. Plasters, see other data sheets in this series, and U.S.G. Architectural Tech nical folders SA-405, 805, 912, 913, 915 and 917. Part 1: general 1.1 scope--Specify to meet project requirements. 1.2 qualifications All materials, unless otherwise indicated, shall be man ufactured by United States Gypsum Company, and shall be installed in accordance with its current printed direc tions. 1.3 delivery and storage of materials All materials, except water and sand, shall be delivered in their original unopened packages and stored in an enclosed shelter providing protection from damage and exposure to the elements. Damaged or deteriorated materials shall be removed from the premises. 1.4 environmental conditions a. In cold weather, the temperature of the building shall be maintained in the uniform range above 55F. for an adequate period prior to the application of plaster, while the plastering is being done, and after the plaster is dry. The heat shall be well distributed in all areas, with de flection or protective screens used to prevent concen trated or irregular heat on plaster areas near source. When required, heat shall be furnished by ( ). b. Ventilation shall be provided to properly dry conven tional plaster during and subsequent to its application. In glazed buildings, this shall be accomplished by keep ing windows open sufficiently to provide air circulation; in enclosed areas lacking normal ventilation, provisions must be made to mechanically remove moisture-laden air. For veneer plaster, a minimum ventilation level shall be maintained until the plaster has set and dried. c. If glazed sash are not in place and the building is subjected to hot, dry winds or temperature differentials from day to night of 20F. or more, openings shall be screened with cheesecloth or similar material. 1.5 protection Proper protection shall be provided during plastering for finished door and window frames and other designated areas which do not receive a plaster finish. Part 2: products 2.1 materials a. Basecoat Plaster: (STRUCTO-BASE Gypsum Plaster) (RED TOP Wood Fiber Plaster) (RED TOP Gypsum Plas ter) (RED TOP Two-Purpose Plaster) STRUCTO-LITE Plaster) (IMPERIAL Basecoat Plaster). b. Aggregate: (Sand) (Perlite) meeting ASTM C35 re quirement. ' BBOIS 0267 r Copyright 1984, Uniied Stales Gypsum Company c. Water: Potable and not containing impurities that af fect the setting of gypsum. 2.2 mixes a. Basecoat Plaster (and aggregate) shall be mixed in proportions of(specify from technical data below). Use of Aggregates with Gypsum Plasters maximum recommended proportions maximum quantity of aggregate, m cu. ft. to be used with 100 lb of neat gypsum plaster plaster base no. of coats types of coats under smooth trowel finishes sand (1) perlite under other finishes sand (11 perlite Gypsum Lath scratch 3 brown 2 basecoat 2 3 2Vj 22 23 2 3 2 2Vs 2 Metal Lath 3 scratch brown 2 3 _ 2 3 2 2 Unit Masonry 3 scratch brown 2 basecoat 3 3 3 33 33 33 3 3 3 (ti Approximately six No. 2 snoveis of sand equal 1 cu. ft. One shovel equals 15 <b Note in a construction system whtcn has metal lath as the piaster base, perlite or vermi* cuiite aggregate is not recommended lor use tn the oasecoat piaster, unless a float or acoustical tile finish t$ used Part 3: execution 3.1 surface preparation a. Prepare surfaces to receive plaster according to current printed directions. 3.2 basecoat application--Apply basecoat plaster by (hand) (machine) in (1) (2) coats. a. One-coat application: Over gypsum lath and masonry, apply base (first) coat with sufficient material and pressure to form good bond to base and to cover well, and then double back to bring plaster out to grounds. Straighten to a true surface with rod and darby without use of additional water and leave rough to receive finish coat. b. Two-coat application: Apply scratch (first) coat with suf ficient material and pressure to form good full keys on metal lath, and good bond on other bases, and then crossrake. Apply brown (second) coat after scratch (first) coat has set firm and hard. Bring out to grounds and straighten to a true surface with rod and darby without use of additional water. Leave rough to receive finish coat. c. IMPERIAL Basecoat Plaster: When applied directly to IMPERIAL Gypsum Base, embed tape and fill beads, allow plaster to set, then scratch and immediately double back to thickness of '/is" to 3/s2", in accordance with manufacturer's directions. d. Other applications: See appropriate U.S.G. literature. 3.3 finish coat application--Apply appropriate product ac cording to manufacturer's directions. PRODUCT DATA Materials: Gypsum plasters. Types: Basecoat plasters for standard application or veneer application. Technical Data--Basecoat Plasters plaster compressive weight conduc* mix strength lb./cu. ft. tivrty psi--dry (1) --dry no STRUCTO-LITE (regular) 600-800 50 1.74 wood fiber wood fiber (sand) STRUCTO-BASE (sand) neat 100:1 100:2 100:2'/r 100:3 1500-2000 1200-1600 2800 min 1900 min 1400 min 82 97 124 120 118 3.15 -- -- -- -- RED TOP gypsum plaster mixed with-- sand perlite vermiculite 100:2 100:2'/j 100:3 100:2 100:3 100:2 100:3 750-1100 650-850 550-75O 600-800 450-600 400-525 250-325 107 108 109 48 41 48 41 5.51 -- 5.60 1.64 1.31 1.74 1.42 IMPERIAL neat 3000 107 -- (1) Average laboratory test results. Figures may vary slightly tor products from indivi dual mills. Tested in accordance with ASTM C472. Aggregate is m cu. ft. Compliance with Standards: All standard plasters comply with ASTM Designation C28; IMPERIAL Plaster ASTM C587. RED TOP Wood Fiber Plaster meets Federal Specification SS-P-00402B, Type III; RED TOP Gypsum and Two-Purpose Plasters and STRUCTO-BASE Gypsum Plaster, Type II, Class 1 and 2; STRUCTO-LITE Gypsum Plaster, Type I; IMPERIAL Plaster, Type VI. Thermal coefficient of expansion (unrestrained): Sanded gypsum plaster (100:2, 100:3)--7.0x10-; Wood Fiber Plaster (sanded 100:1)--8.0x10 in. per in. per deg. F. (40--100F.). Hygrometric coefficient of expansion (unrestrained): Sanded gypsum plaster (100:2, 100:3) -- 1.5x10-; STRUCTO-LITE Plaster (regular)--4.8x10-; vermiculite gypsum plaster (100:2)--3.8x10-; Wood Fiber Plaster (sanded 100:1)--2.8x10- in. per % r. h. (5%--90% r.h.). BB019 0270 Basecoat Plasters Spray application shortens job time. Plaster keys provide high resistance to cracking. r gypsum plasters LATH & PLASTER Approx. Coverage-sq. yd.iton: product RED TOP Gypsum Plaster (with sand) RED TOP Wood Fiber (neat) RED TOP Wood Fiber (sanded) RED TOP Two-Purpose (with sand) STRUCTO-BASE Plaster STRUCTO-LITE Plaster IMPERIAL Basecoat applied over base of: gypsum lath metal lath unit masonry 200-220 105-120 175-190 85-95 45-55 100-110 125-145 65-75 100-110 200-220 155-175 135-145 360-470 105-120 90-105 70-80 -- 175-190 155-170 130-140 300-400 Packaging (lb.): RED TOP Gypsum Plaster--50 and 100: RED TOP Wood Fi ber Plaster--50 and 100; RED TOP Two-Purpose and STRUCTO-BASE Plasters--TOO; STRUCTO-LITE Plaster--80; Masonry and Type S STRUCTO-LITE Plaster--66.67, IMPERIAL Plaster--80. TRADEMARKS Tne following trademarks used nerem are owned by Unitea Slates Gypsum Comoany RED TOP. STRUCTO-BASE STRuCTO-LITE IMPERIAL. DIAMOND NOTE All products described nere may not be available in an geographic markets Con sult your local U S G sales oftice or representative lor information UNITED STATES GYPSUM BUILDING -l.VfWtVJ ( 101 South Wacker Drive. Chicago. Illinois 60606 P SiSrUSG/rev 6-84 1984--6 Ia s i UNITED STATES GYPSUM i = l q p