Permatex High Performance Thread Sealant meets OEM Specifications. Formulated specifically for metal, tapered pipe thread fittings, it replaces Teflon tape and pipe dopes. Permatex Thread Sealant locks and seals threaded fittings. Cures rapidly to withstand up to 10,000 PSI when assembled. Prevents galling and protects mated threaded areas from rust and corrosion. Contains PTFE. Product Features:Meets OEM SpecificationsLocks and seals threaded fittingsResists leakage and vibration looseningFormulated specifically for metal, tapered pipe thread fittingsReplaces Teflon tape and pipe dopesCures rapidly to withstand 10,000 PSI when assembledPrevents galling and protects mated threaded areas from rust and corrosionResists all auto shop fluids, fuels and gasesApplications: Stainless steel fittings, head bolts into through holes, oil PSI sending units/sensors, oil and coolant lines, intake manifold switches, rear axle fill plug, fuel fittings.