Polyethylene Sheet, Material Polyethylene, Shape Sheet, Grade Standard, Length 4 ft, Width 4 ft, Thickness 1/4 in, Backing Type Adhesive, Cell Type Closed Cell, Adhesive Type Acrylic, Number of Adhesive Sides 1, Color Blue, 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