Density, ASTM D-1622
Molded, Overall: pcf 2.22
Core: pcf 2.10
Compressive Strength 10% deflection,
ASTM D-1621
Parallel: psi 19.0
Perpendicular: psi 19.2
Initial K-Factor, ASTM C-518, BTU in/hr ft2 °F : 0.145
Shear Strength, ASTM C-273: psi 25
Tensile Strength, ASTM D-1623: psi 37
Water Absorption, ASTM D-2842
lb/ft2: 0.05
% by volume: 3.09
Thumbing Friability, ASTM C-421, % loss: 1.5
Closed Cell Content, ASTM D 2856, %: 90
Fire Resistance
ASTM E-84: Class 1A
Flame Spread: <45
Smoke: <450
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