Lubricates threads for easy assembly and disassembly. Won't shred or wear like PTFE tape. High performance, solvent-resistant sealant locks and seals metal, tapered pipe threads and fittings. Specifically formulated for aluminum, stainless steel, galvanized metal and other inert metals. Temperature range from -65°F to 400°F (-54°C to 204°C). Contains PTFE. Prevents oil, air and fluid leaks.