Hercules 15620 Real Tuff Thread Sealant

Hercules Real-Tuff is a multi-purpose, heavy duty white PTFE thread sealant that uses a unique system of fine-grain PTFE particles to fill cracks and thread imperfections. Real-Tuff holds tight against expansion, contraction and vibration, is non-separating, will not run or drip from joints, contains no lead. Non-hardening lubricating formula permits low torque make-up and easy disassembly without galling or stripping threads. Real-Tuff withstands temperatures from -200 to 550 deg F and provides leakproof hydraulic resistance to 12,000 psi and withstands gas pressure up to 2,600 psi. Real-Tuff is non-flammable and contains no heavy metals or volatile solvents and is applied easily with a natural bristle brush, even at temperatures as low as -25 deg F.