A versatile thread sealant for use on black iron, galvanized steel, copper, brass and aluminum pipe and fittings. Can be used on lines carrying natural gas, air, steam, hydronic heating, ammonia, brine, diluted acids and sprinkler systems. Pro Dope® will not drip, is lead free, non-toxic and wont spill. It is non-separating and provides a tight, positive, leak free seal. Pro Dope® prevents rust and inhibits corrosion by forming a protective coating on threads. It is non-hardening and joints can be disassembled without damage to pipe fittings or threads. Pro Dope® is easily applied with a natural bristle brush in temperatures as low as -15 deg F and performs over a temperature range of 0 to 350 deg F. Pressure rated to 250 psi for liquids and 200 psi for air/steam. Pro Dope® is a grey colored thread sealant which contains no lead.