Caplug’s Pipe Thread Masks Protect Piping and Tubing

Designed with a tear-away venting nipple, these cap-plugs enable pressure release during the curing process.

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Caplug’s Pipe Thread Masks (PTM series) protect threads on piping and tubing and prevent coatings that are applied during pipe fabrication and secondary coating processes from getting inside the pipe. Designed with a tear-away venting nipple, these cap-plugs enable pressure release during the curing process. Additional design features include an outer rib allowing for extra hold against the internal threading and an ergonomic handle for easy removal. Ultrabake silicone enables the cap-plug to withstand temperatures up to 600°F. The PTM series is available in seven sizes and is color coded for easy identification.