Avoid stuck plugs and bolts - Heat resistant - Assure easy installation and removal - Use the stick like a crayon. No more messy paste. No more dripping brushes and stains. Thread-Magic withstands temps to 1200F (649C). will not wash out. Even works on bi-metal applications where seizing problems can be severe. Assure easy removal on aluminum and cast iron components to prevent seizing, galling, and damage during disassembly. 1001 uses...including lug nuts, brake lube assembly and anchor pins, engine head bolts, spark plug threads, oxygen sensor threads, exhaust manifold studs, EGR fittings, starter and alternator bolts, and more.