Maxshine Clay Disc removes contaminants and impurities much faster than clay bars, with long-lasting performance that out-competes traditional clay bars. It will achieve the best results when used with MaxShine’s Clay Lube. This product is reusable, not water-soluble, therefore after each use just ring out the water and use it again later! It could easily remove contaminants including paint overspray, water spots, fresh tree sap, rail dust, bird droppings, light oxidation, and brake dust.