Polyethylene Sheet Material Polyethylene Shape Sheet Grade Standard Length 4 ft Width 4 ft Thickness 1 in Backing Type Plain Cell Type Closed Cell Adhesive Type Plain Backing Number of Adhesive Sides 0 Color White Density 2 lb/cu ft Maximum Temperature 150 Degrees F Minimum Temperature -20 Degrees F Tensile Strength 40 psi Texture Smooth Firmness @ 25 Percent Deflection 9 psi Material Skin None Flexibility Poor Standards FMVSS 302 Chemical Resistance Good