Loctite 233507 Anti-Seize Zinc Paste 16 oz Can Grey LB 8044

What this paste does

Loctite 233507 is a zinc-based anti-seize compound supplied in a 16 oz can. It is formulated for general-purpose use on threaded fasteners and mating surfaces where metal-to-metal contact can cause galling, corrosion or heat seizure. The grey paste is non-flammable and designed for maintenance, repair and assembly tasks across automotive, industrial and marine environments. Mechanics and technicians apply it to bolts, studs, flanges and gaskets to ensure reliable disassembly later.

Temperature range decides fit

The compound remains effective from -20 degrees F up to 750 degrees F. This window determines whether the paste suits a given joint; applications that exceed the upper limit or require a different metal base — such as copper or nickel — will need another product. The zinc formulation targets steel and iron hardware in moderate-heat service where seizure prevention is the primary goal.

Capacity and coverage limits

One 16 oz can provides enough paste for many typical fastener jobs, coating threads and bearing faces with a thin, even layer. Heavy-duty flanges or large-diameter studs consume material faster, so very large assemblies may require multiple cans. The product does not contain a chemical known to the State of California to cause cancer or birth defects beyond the Proposition 65 warning noted on the label.