TABLE - Perlite Underfloor Insulation Specifications

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Perlite Underfloor Insulation Specifications

Either regular perlite insulation, silicone-treated perlite, or dust suppressed perlite can be used for underfloor insulation. These different types of perlite can be produced in accordance with ASTM C549. Other specifications are outlined below.

Density	4.5 to 6.25 lb/ft ³ (70-100 kg/m³
Sieve Analysis (U.S. Standard)	10-20 % plus 16 mesh 1.18 mm) 90% plus 100 mesh 0.150 mm)
Thermal Conductivity (Varies with Density)	0.27-0.33 BTU^.in/h^.ft² ^.F⁰ 0.039-0.047 W/m ^.K

Information given herein is from sources considered reliable, but no guarantee of accuracy can be made or liability assumed. Your supplier may be able to provide you with more precise data. Certain compositions or processes involving perlite may be the subject of patents.
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