Lubricates and seals all threaded joints.White, non-hardening, non-separating, non-toxic paste.Withstands up to 3,000 PSI on gases from -50° to +400°F, and 10,000 PSI on liquids from -50° to +500°F.For use with water, steam, caustics or dilute acid lines of PVC, CPVC, ABS, cycolac, polypropylene, iron, steel or copper.Non-hardening gray paste seals and lubricates threaded jointsNon-hardening gray paste seals and lubricates threaded jointsFor use on water, steam or air linesNon-separating and non-toxic materialNot for use on Plastic threads