MASTERS Pro-Dope PTFE Pipe Thread Sealant is a non-toxic, non-corrosive, non-hardening paste designed to seal both metal and plastic threaded connections. This reliable sealant lubricates during assembly and ensures easy disassembly without drying out, staining, or hardening. It effectively seals most liquids and gases against leakage up to 10,000 psi and a wide temperature range from –200°F to +400°F (-129°C to +204°C), providing long-lasting protection and performance. Ideal for high-pressure applications.