PETG Thermoform Plastic Sheets 0.020" x 12" x 12" Sheets - 12 Piece Bundle 0.020" thick PETG 12" x 12" thermoform plastic sheets - 12 Piece Bundle Clear PETG is smooth on both sides High impact strength. Resists stress cracks and chipping Forming Temperature: 250 - 320 degrees Fahrenheit Cut, drill, and sand with woodworking tools. Accepts Paint