Butyl Sheet, Sheet, Adhesive Type Plain Backing, Backing Type Non-Adhesive, Color Black, Durometer 60A, Grade Standard, Material Butyl, Standards ASTM D2000 M1AA 607, Maximum Temperature 250 Degrees F, Minimum Temperature -40 Degrees F, Overall Length 12 in, Thickness Tolerance +/-0.026 in, Overall Width 12 in, Tensile Strength 1,200 psi, Texture Smooth, Overall Thickness 0.25 in, Abrasion Resistance Fair, Chemical Resistance Excellent, Oil Resistance Poor, Water Resistance Good