Viton®, Fluoroelastomer Foam Tape. Closed cell medium, black, with a smooth surface. Excellent chemical and temperature resilient foam with an industry leading adhesive bond. Great for most chemical compatibility and thermal gasketing applications. Adhesive: high-tack permanent acrylic pressure sensitive adhesive (PSA) on one side with easy-to-use release liner. Also available without adhesive backing. Viton® is a registered trademark of The Chemours Company. Expensive Material Produced in rolls, sheets, pre-cut (digital & die-cut) shapes, spools, and other customizable options.