Blue Monster Industrial Grade PTFE enriched pipe thread compound is a slow-drying, soft-setting, non-hardening pipe thread compound. Blue Monster has a high-bulk density which means there are more solids in the formulation. This allows you to work the product into the valley of the threads giving you greater sealing capabilities to fill any voids that occur under different tolerances of pipe and fittings. Blue Monster with PTFE is recommended for on-site or assembly line work. It is lead-free, non-toxic and will not harden or separate in the can. Blue Monster allows the system to be pressurized immediately after assembly. It does not require any set or cure time. Blue Monster with PTFE can be used on pipes carrying diluted acids, compressed air, aliphatic solvents, diluted alkalis, ammonia, brine, butane, carbon dioxide, castor oils, chlorinated water, coal tar naptha, corrosives, cutting oils, diesel fuel oil, fatty acids, Freon, gasoline, glycol, heating oils, helium, hydraulic oil, hydrogen, jet fuel, kerosene, lacquer, petroleum gases, mineral oils, natural gas, nitrogen gas, petroleum solvents, propane, refrigeration gases, soap, steam, sugars, vegetable oils, potable water, xylol.