Foam Sheet Open Cell Material 35280 Polyurethane Thickness 1/2 In Width 36 In Length 36 In Finish Smooth Cellular Color Natural Backing Type Plain Temp Range -20 to 180 F Thickness Tolerance +/-0.250 In Width Tolerance +/-0.250 In Length Tolerance +/-0.250 In Tensile Strength 9 PSI Firmness @ 25 Deflection 0.32 - 0.67 PSI Stretch Limit 120 Density 2.8 lbs cu./ft. Standards CAL 117/MVSS 302FR