Plastic Sheet, PTFE, Grade Standard, Plastic Length 36 in, Plastic Width 12 in, Plastic Thickness 0.25 in, Black, Plastic Clarity Opaque, Tensile Strength 3,000 psi, Impact Strength 3.5 ft-lb/in, Friction Coefficient 0.07, Water Absorption 0.01 Percent, Temperature Range -290 Degrees to 500 Degrees F, Plastic Density 0.078 lb/cu in, Plastic Hardness 55D