Sheet Stock, HDPE, Grade Standard, Plastic Length 8 ft, Plastic Width 4 ft, Plastic Thickness 0.25 in, Black, Plastic Clarity Opaque, Tensile Strength 4,600 psi, Impact Strength 1.30 ft-lb/in, Friction Coefficient 0.2, Water Absorption 0.01 Percent, Temperature Range -58 Degrees to 176 Degrees F, Plastic Hardness 70D