Sheet Stock Polycarbonate Grade Standard Plastic Length 12 in Plastic Width 8 in Plastic Thickness 0.5 in Clear Plastic Clarity Clear Tensile Strength 9 700 psi Impact Strength 14.0 ft-lb/in Friction Coefficient 0.53 Water Absorption 0.13 Percent Temperature Range -40 Degrees to 240 Degrees F Plastic Density 0.043 lb/cu in Plastic Hardness Rockwell R120