Lubricates and seals all threaded joints White, non-hardening, non-seaparting, non-toxic paste Withstands up to 3,000 PSI on gases from -50 to +400 degrees F and 10,000 PSI on liquids from -50 to +500 degrees F For use with water, steam, caustic or dilute acid lines Can be used with plastic and metal threads 8 oz.