X-Pando Products Company manufactures unique sealing compounds that expand as they set – ensuring a tight, leakproof joint and correcting imperfections. X-Pando Pipe Joint Compound is used on most threaded pipes and fittings for most liquids, gases and liquid gases at high pressures and low and high temperatures. X-Pando Special No.2, which withstands the heat of welding, is used for sealing the cement lining of cement-lined pipes. Both are nontoxic and UL® Certified to NSF/ANSI 61 & 372. VOC content – non-detectable. Meets the requirements of FDA, USDA, NASA and API.