Master STAGES CLEAN2020/1G Clean 2020 Washing Compound for Ultrasonic and Immersion Washers, Pale Yellow, 1 gal Jug Excellent cleaning in immersion and ultrasonic tanks Long life because oils split rapidly to the surface of your cleaner tank where they can be skimmed off An excellent choice where one product is used for multiple purposes; such as washing mixed batches of ferrous, aluminum, and copper alloy parts Will provide extended in-process tarnish resistance on copper and copper alloy parts Safe on aluminum, aluminum alloy, and magnesium