Sheet Stock Cast Acrylic Grade Standard Plastic Length 24 in Plastic Width 8 in Plastic Thickness 0.25 in Clear Plastic Clarity Clear Tensile Strength 9 000 psi Impact Strength 0.3 ft-lb/in Friction Coefficient 0.8 Water Absorption 0.4 Percent Temperature Range 40 Degrees to 190 Degrees F Plastic Density 0.043 lb/cu in Plastic Hardness Rockwell M95