Permatex 80052 Fast Break Super Penetrant, 12 oz. Aerosol Can Works quickly to penetrate and loosen rust, tar, grease, dirt, carbon deposits and corrosion from metal parts Heavy-duty penetrant for rusted and frozen assemblies Frees frozen nuts, bolts and fittings Suggested Applications:Lubricates to free any corroded or seized part and penetrates rust, scale, paint, varnish, carbon or gum