Pipe Thread Sealant is an NLGI Grade 1, non-toxic, non-drying thread sealing compound consisting of a blend of non-melting grease, PTFE particles and other inert solid fillers, engineered to produce a leak-proof seal. The sealant does not contain lead, graphite, molybdenum disulfide or clay fillers. Its white, non-hardening formula holds pressure to 8,000 PSI and features a usable temperature range from -35°F to 550°F. It protects against chemicals and prevents corrosion and is recommended for use on all threaded joints in plastic, aluminum, or stainless steel lines against water, natural gas, LPG, gasoline and other services. It’s also effective on connections, pipe bungs, bolts, flange seals, and as a gasket-parting compound.