Polyethylene Sheet Material Polyethylene Shape Sheet Grade Standard Length 24 in Width 12 in Thickness 1/4 in Backing Type Adhesive Cell Type Closed Cell Adhesive Type Acrylic Number of Adhesive Sides 1 Color Black Density 4 lb/cu ft Maximum Temperature 180 Degrees F Minimum Temperature -100 Degrees F Maximum Adhesive Temperature 225 Degrees F Minimum Adhesive Temperature -34 Degrees F Tensile Strength 85 psi Texture Smooth Firmness @ 25 Percent Deflection 14 psi