Loctite C5-A Anti-Seize Grease Copper is a unique combination of copper and graphite in a petroleum base give this anti-seize lubricant outstanding performance at temperatures up to almost 1800 degrees F. Lubricant also seals metals and protects from heat and corrosion.Features Unique combination of copper and graphite in a petroleum base'Outstanding performance at temperatures up to almost 1800 degrees FLubricant also seals metals and protects from heat and corrosion