Loctite 504468 Copper Anti-Seize Stick, 20-gram Provides a shield against high temperature seizing and galling Studs, bolts, flanges and other mated partscan be removed easily Can be used on copper, brass, cast iron, all steel alloys including stainless steel, all plastics and all non-mettalic gasketing materials Typical applications include spark plug threads installed in aluminum, exhaust manifold bolts, oxygen sensors and battery cable connections Formulated for severe environments