Formulated with carbon and glass fibers for the strongest, fastest repairs; in many cases eliminating the need for wire mesh re-enforcement. Sticks to any kind of plastic, but works especially well on TPO's. Cool it off and sand immediately to a fine feather edge. For use with Urethane Supply Company's Airless Plastic Welder. Each stick is 1' long, approximately 1/8" thick by approximately 1/2" wide