K5449 Sheet Stock UHMW Polyethylene Grade Standard Plastic Length 8 ft Plastic Width 4 ft Plastic Thickness 0.5 in Black Plastic Clarity Opaque Tensile Strength 4 000 psi Impact Strength No Break Friction Coefficient 0.14 Water Absorption 0.01 Percent Temperature Range -22 Degrees to 180 Degrees F Plastic Hardness 67D