BLACK Styrene Thermoform Plastic Sheets 0.020" x 12" x 12" Sheets - 12 Piece Bundle 0.020" thick 12" x 12" thermoform plastic sheets - 12 Piece Bundle Smooth on both sides High impact strength. Resists stress cracks and chipping Forming Temperature: 325 - 350 degrees Fahrenheit Cut, drill, and sand with woodworking tools. Accepts paint and ink