Plastic Sheet Acetal Homopolymer Grade PTFE-Filled Plastic Length 6 in Plastic Width 6 in Plastic Thickness 0.625 in Brown Plastic Clarity Opaque Tensile Strength 7 690 psi Impact Strength 0.7 ft-lb/in Friction Coefficient 0.12 Water Absorption 0.2 Percent Temperature Range -40 Degrees to 185 Degrees F Plastic Density 0.0526 lb/cu in Plastic Hardness Rockwell M89