The purpose of anti-seize lubricant is protection from corrosion, rust and seizing, according to Henkel. The lubricant is especially useful in extreme weather temperatures. It helps provide easy assembly and disassembly of small threaded joints and parts. Expensive fittings last longer when a lubricant is used.
Gasket performance is improved as well, notes Henkel. The lubricant provides a consistent clamp load which prevents galling and improves electrical conductivity. Anti-seize compounds are brushed on bolts and other metal parts to prevent corrosion. It reduces breakage and resists high pressures. Different lubricants are designed to work on specific metals which depend on temperature limits and lubricities.