Fitting fittings on PVC pipe

On Nov 8, 11:42pm, wrote:

Poor choice if outdoors. PVC is not formulated for UV exposure, The exception is electrical (gray) conduit which will be labeled as UV resistant. A more practical and durable railing system can be constructed with special fittings and tubing from industrial supply houses, McMaster, Grainger, etc. Galvanized is suitable for outdoor use. If you absolutely must use PVC, the fittings can be mated to each other by rotating one part inside the other with a coating of valve lapping compound. The Clover brand compound is available at auto supply stores, industrial outlets as above and comes in a dozen or so grades from coarse to fine. I've done this and it is not very fast, but it is more precise than sanding.
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