K6061 Sheet Stock HDPE Grade Standard Plastic Length 4 ft Plastic Width 4 ft Plastic Thickness 0.75 in White Plastic Clarity Opaque Tensile Strength 3 500 psi Impact Strength 3.0 ft-lb/in Friction Coefficient 0.2 Water Absorption 0.01 Percent Temperature Range -70 Degrees to 180 Degrees F Plastic Density 0.035 lb/cu in Plastic Hardness 60D