POLY-TEMP Joint PTFE-UHF (uniformily highly fibrilated) Joint Sealant is 100% expanded PTFE gasket material. It is a soft and pliable ribbon with a self-adhesive backing to one side to hold strip firmly in place. POLY-JOINT is a tough, flexible, and economical universal gasket that replaces cut gaskets in a variety of regular and severe service applications. It will not deteriorate with age, is unaffected by chemicals, withstands pressures up to 3,000 psi. and tempertures -450° F to 600° F (-268° C to 316° C). This unique material is highly compressible and fills severe irregulatities in sealing surfaces. Easy to work with, flanges parts easily, no re-torquing required, resists cold flow and creep, reduces inventory of cut gaskets. Meets FDA Requirements 21 CFR 177.1550 and 21 CFR 175.105. For use on flanges, pump and compressor housings, heat exchangers, manway covers on rough or irregular surfaces. FRP (fiberglass reinforced plastic) vessels, steam vessel flanges, concrete lids, glass joints, food service and processes.