Designed for today"s eat- on- the- go- car owner, Automotive Strength Stain Remover works even on the toughest automotive stains. Powerful, premium formulation and unique brush top help remove tough stains. A stain is something that re-deposits or molecularly attaches to a surface. To remove stains, this formula breaks the bonds between the stain and the fiber, emulsifies the stain and aids in removing it.