Because of its insulating value, perlite plaster is not recommended over radiant heating panels.The same limitations for Portland cement plaster apply to perlite cement-based plaster.When plaster begins to set, but is still sufficiently plastic that it can be manipulated with the tools, it shall be properly floated to provide compaction. †NOTE: In panelized constructions, where panels are fabricated in a horizontal position, the plaster may be placed monolithically, i.e., poured in one coat and screeded level. Stable & Durable-It will not rot or decay, and has been used in a variety of conditions around the world since 1946.A typical 4 ft.3 (110 L) sack weighs 32 lbs (14.5 kg) making it easy to pour, measure, and mix. Adaptable & Easy to Handle-Perlite is easy to stock and handle on the job site.fifty (50) fire tested designs have been approved for use by recognized laboratories it is commonly used in the protection of structural steel columns. Fire Retardant-Up to 4-hour fire protection is achievable with the minimum weight and thickness.Insulating-It offers 4x as much thermal transfer insulation as sand plaster, and perlite lightweight concrete has been used successfully in residential construction to reduce noise transfer through walls.Strong-Resistance to hydration cracking is dramatically increased with the addition of alkaliresistant glass or polypropylene fiber shorts.Lightweight-It weighs up to 60% less than ordinary sand plaster, making it ideal for panelized wall construction†.It can be applied over metal or wire lath, on top of a cementitious bonding or key coat, or directly over other surfaces prepared with an approved liquid bonding agent. Perlite cement-based plaster can be used on new or remodel work, as a basecoat for stucco finishes, and as a substrate for ceramic tile or masonry veneer. Perlite cement-based lightweight insulating plaster application in a 3,000-unit residential villa project.
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