They are thermally stable to 300°F and resist strong bases, organic solvents, and acids. They are also nonfire propagating and meet Factory Mutual (FM) 4910 Fire Safe Protocol requirements for semiconductor equipment. The sheets are easily machined or thermoformed, and are melt-weldable. They come in thicknesses from 0.125 to 1 in. and widths to 48 in.

Quadrant Engineering Plastic Products, Box 14235, 2120 Fairmont Ave., Reading, PA 19612, (800) 366-0300,