Oatey 31263 Great Blue Pipe Joint Compound, 16 fl.Ounce Flexible blue, non-hardening, non-separating, non-toxic paste, no odor, easy clean-up. Use on PVC, CPVC, ABS, polyethylene, polypropylene, iron, steel, copper or brass threads up to and including 2"". Withstands up to 3,000 PSI on gases from -50 to +400F and 10,000 PSI on liquids from -50 to +500F. For use with water, steam, caustics or dilute acid lines of PVC, CPVC, ABS, cycolac, polypropylene, iron, steel or copper. Lubricates and seals thread on water, natural gas, steam, air lines, caustics and dilute acids. 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 +400F, and 10,000 PSI on liquids from -50 to +500F For use with water, steam, caustics or dilute acid lines of PVC, CPVC, ABS, cycolac, polypropylene, iron, steel or copper Lubricates and seals thread on water, natural gas, steam, air lines, caustics and dilute acids