White thread lubricant and sealant. Brushable paste dries slowly, non-hardening, withstands up to 3000 psi on gases at temps from -50 to 500 deg F. Use on water, steam, natural and LP gas, oils, fuels, dilute acids. Apply to metals, PVC, CPVC, ABS, polypropylene and nylon. all purpose sealant for heavy-duty applications. Warning, never use any pipe thread sealant paste or stick on halogens or oxygen, use PTFE pipe thread tape.