Extreme Simple Green® Aircraft & Precision Cleaner is a breakthrough water-based formula that cleans engines, aircraft, vehicles, metals, plastics, high-tech alloys, and parts. This non-corrosive, low-foaming cleaner/ degreaser does not contain reagents that oxidize finishes, cause rust or degrade elastic materials such as rubber or vinyl-but protects the life of hoses, seals, gaskets, paint finishes and other hard surfaces plus rinses residue-free for ease of use and protection of structures and finishes.