Auto-Chem and Aqua-Pro Professional Grade formulas are designed for ease of use and to be environmentally friendly for Consumers and the Trade. The Products are not watered down like the popular consumer brands, which means longer lasting, maximum protection and superior shine for your vehicle or watercraft. If you care about your car, boat, or recreational vehicle please try Auto-Chem or Aqua-Pro Professional Products. Liquid Mask will prevent over-spray damage on finishes. It is recommended for application prior to painting or priming, and may be applied to all vehicle surfaces including paint, glass, chrome, aluminum, plastic, vinyl and rubber. Leaves a transparent film that can be removed by peeling of or with water.