Plastic Sheet Stock, UHMW Polyethylene, Oil-Filled, Plastic Length 4 ft, Plastic Width 0.5 in, Plastic Thickness 0.25 in, Gray, Plastic Clarity Opaque, Tensile Strength 4,000 psi, Impact Strength No Break, Friction Coefficient 0.14, Water Absorption 0.01 Percent, Plastic Density 0.034 lb/cu in, Corrosion and Chemical Resistance Good