Sheet Stock, Garolite XX, Grade Standard, Plastic Length 48 in, Plastic Width 12 in, Plastic Thickness 0.25 in, Black, Plastic Clarity Opaque, Tensile Strength 15,000 psi, Impact Strength 0.6 ft-lb/in, Water Absorption 1.25 Percent, Temperature Range 0 Degrees to 250 Degrees F, Plastic Density 0.049 lb/cu in, Plastic Hardness Rockwell M110