Chemical Guys BUF_333_16 Foam and Wool Citrus-Based Pad Cleaner (16 oz) Cleans, restores and prolongs the life of wool, foam, sponge and microfiber pads Contains citrus degreasing agents that breaks up oil and eliminates traces of residue Removes wax, polish, glaze, compound, dressing and grease Dish soaps and powders can leave a residue of its own, so there is no soap in this cleaner Powder cleaners don't dissolve correctly and can leave residue that will easily scratch the surface of your vehicle