RectorSeal pipe thread sealant is a soft-set, slow drying compound which seals, lubricates and protects threaded pipe and fittings. It can be pressurized immediately for piping up through 2 inch and 100 PSI (for natural gas, air and water only) and is ideal for application with a wide variety of fluids and gases, including potable water applications. Recommended for use on threaded galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, fiberglass reinforced and PVC pipe. For use with galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, reinforced fiberglass and PVC pipesFlash point 150 degree Fahrenheit