Christy's Ultra Seal T-10,000 Thread Sealant is made with a slow-setting, non-separating, no grit formula that is safe on seals or valves and faucets. Use it for sealing threads on all metal and PVC, CPVC, nylon, and polypropylene piping systems. This is an all-purpose, thread-sealing compound meant for use on metal and plastic piping. This product is meant for use in systems that emit steam, gas, air, water, petroleum, and other chemicals. The Ultra Seal T-10,000 Thread Sealant has an anti-galling factor that ensures fast and simple disassembly. It also contains soft-set, virgin PTFE paste for quick assembly. This product comes in a white, grit-free color that is easy to brush on. You can apply this sealant on metal and plastic appliances such as faucets or valves. Best of all, this product is non-corrosive, non-toxic, and does not have any lead-containing ingredients. The Ultra Seal T-10,000 Thread Sealant can be used on a wide variety of plastics, including PVC, Fiberglass, and Nylon. This sealant is non-hardening, non-seizing, and doesn't leave any odor behind upon application. Expect a leak-free seal after application.