Permatex High Performance Thread Sealant 50ml 56521Formulated specifically for tapered metal pipe thread fittings, this sealant cures rapidly and can withstand up to 10,000PSI.Why you shoul use Permatex Thread Sealant Allows repositioning after application; Withstands up to 10,000PSI; Prevents galling and protects threads; Formualted for metal tapered pipe thread fittings; This thread sealant also provides rust and corrosion resistance to the thread. Prevents leakage from vibrations, temperature changes, and extreme pressure.