OATEY 31229 1 oz. Great White® Pipe Joint Compound with PTFE

Great White works on both plastic and metal threaded joints, so it covers PVC and CPVC male adapters as well as galvanized, black iron, brass and copper threads. It is a non-hardening, non-separating white paste, so the joint can be broken apart later without the dope setting up hard in the threads.

On gases it holds to 3,000 psi over a range of -50 F to 400 F. On liquids it holds to 10,000 psi from -50 F to 500 F. That covers water lines, steam, caustics and diluted acid service.

A PTFE-loaded paste like Oatey Great White both lubricates and seals the thread, so it draws up tighter without galling and fills minor imperfections tape bridges over. It is the usual choice on larger iron pipe, on joints you expect to break apart again, and on steam or chemical lines. Tape is tidier on small fittings and where any paste would be a contamination concern. Many plumbers use both: tape first, then a light coat of dope over it.

The 31229 is the 1 oz size, listed at 0.01 gallon volume and 0.1 lb weight, with a brush top applicator built into the cap. That size is a service-truck or single-repair quantity, not a rough-in jar, so for a full job of threaded joints step up to a larger can.

The formula is non-toxic and non-staining, and it is listed for use on water lines, which is why it is a common pick for property maintenance work on fixtures and supply piping. The non-staining part matters on exposed chrome and finished trim where a dark dope would show at the joint.

Yes for steam. Great White is rated for steam service and holds 3,000 psi on gases up to 400 F, with liquid service rated to 500 F, which covers typical low-pressure steam and hydronic threaded connections.