K5821 Sheet Stock PETG Grade Standard Plastic Length 8 ft Plastic Width 4 ft Plastic Thickness 0.25 in Clear Plastic Clarity Clear Tensile Strength 7 700 psi Impact Strength 1.2 ft-lb/in Water Absorption 0.2 Percent Temperature Range -40 Degrees to 153 Degrees F Plastic Hardness Rockwell R115