Use as a lubricant for all metals, windows, awnings, sliding doors, fishing tackle, guns, and all industrial metals. Use for penetration - loosens rusty bolts and nuts quickly. Use for protection - it prevents cement, plaster, salt from sticking and tarnishing new aluminum. It prevents oxidation and rust on all metals. Use for cleaning tarnished aluminum and other metals. 11 oz (ounce) aerosol. Size: 11 Oz. Type: Aerosol Spray This product contains a chemical known to -