CRC 05330 Ultra Screwloose Super Penetrant - 11 Wt Oz. A no-compromise penetrant that attacks corrosion to free corroded fasteners &amp; mechanical components A super-fast, powerful, concentrated penetrating solvent that loosens &amp; cleans, Instantly penetrates minute &amp; tightly fitted crevices Rusted and frozen metals, such as bolts, nuts, hinges, exhaust clamps