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Basecoat Plasters

Basecoat Plasters
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Strength Two-Way Hardwall Plaster properly proportioned with aggregate forms a hard, durable base for the finish coat. Its high tensile and compressive strength results in increased resistance to minor structural movements, impacts and abrasions Fire Resistance Two-Way Hardwall Plaster is essentially mineral in composition and will not support combustion . High Insulating Value Gypsolite has a "k" factor of 1.5 which provides about 3-1/2 times the insulating value of sanded plaster . Fire Resistance Gypsolite has excellent fire-resistive qualities and generally provides fire ratings higher than sanded plaster Limitations When used over metal lath, a sand float finish should be specified . A smooth-trowel finish is not recommended since the combination of a relatively soft (perlite aggregated) basecoat and a hard (smooth-trowel lime/gauging) finish has the potential for cracking and spalling of the finish coat. Gold Bond® brand Two-Way Hardwall Gypsum Plaster Description Gold Bond® Two-Way Hardwall Plaster is a basecoat plaster which requires the job site addition of an aggregate and water to provide working qualities and is designed for interior use over all accepted plaster bases . It may be applied by hand or used through pump/ spray plastering machines Features/Benefits Controlled Uniformity Two-Way Hardwall Plaster is set-stabilized and adjusted for market requirements and seasonal changes When mixed with sand or other aggregate it has uniform working qualities and excellent spread . Gold Bond® brand Gypsolite® Plaster Description Gold Bond® Gypsolite® is a lightweight gypsum basecoat plaster mixed at the mill with correctly sized and proportioned perlite aggregate, requiring only the addition of water on the job . It is manufactured to be trowel-applied over gypsum plaster base, and in some cases metal lath (see LIMITATIONS .) Features/Benefits Uniform Strength and Hardness Uniformity is assured through exact proportioning and thorough mixing of graded perlite and gypsum plaster at the mill . Gypsolite provides a uniform base for the finish coat. Lightweight Gypsolite weighs less than half as much as sanded gypsum plaster, thus reducing the dead-load on framing Technical Data GYPSOLITE ESTIMATED COVERAGE (50 LB. BAG) Plaster Base(Sq. M/Metric Ton) per Bag(mm) Gypsum Lath and 90-100 32-35 7/16" Gypsum Foil Back Lath (83-92)(3-3.5)(11.1) Metal Lath 42-52 16-19 9/16"1 Specification Reference ASTM Designation C 28, "Gypsum Plasters". Bag Weight 50 lbs . (22.7 kg) Measured from face of lath . Specification Reference ASTM Designation C 28, "Gypsum Plasters". Bag Weight 50 lbs . (22.7 kg) 25 lbs .(11.3 kg)

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Finish Plasters PHYSICAL PROPERTIES OF BASECOAT PLASTERS (TYPICAL TEST RESULTS PER ASTM C 472) Plaster Properties Gypsolite Regular Mix . . . Approximate .Compressive . . . . .Strength .lbs . .per .sq . .in . .(kPa) . Approximate .Tensile . . . . .Strength .lbs . .per .sq . .in . .(kPa) . Two-Way Hardwall to Sand by Weight 1:1 . . 1600 . . (11024) . 250 . . (1722) . Gold Bond ® brand Gypsum Gauging Plaster (Super White) Gold Bond ® brand Gypsum Moulding Plaster (Super White) Gold .Bond .Gauging .Plaster, .quick .set . or .slow .set .type, .is .designed .for .use . with .finish .lime . .It...

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