RectorSeal No. 5 pipe thread sealant is a soft-set, slow drying compound which seals, lubricates, and protects threaded pipe and fittings. It can be pressurized immediatety for piping up through 2" and 100 psi and is ideal for application with a wide variety of fluids and gases, including potable water application. Recommended for use on threaded galvanized steel, iron, bass, copper, aluminum, stainless steel, polyethylene, fiberglass reinforced, and PVC pipe. Conforms to TT-5-1732.