Check the listing for details. Watch Dog Smooth Surface Graffiti Remover - 22oz Spray Bottle. Condition: New. Listed at 22.95 USD. Dumond Watch Dog Smooth Surface Graffiti Remover - 22oz Spray Battle Watch Dog® Smooth Surface Graffiti Remover is an effective, professional strength, non-drip gel formula engineered to dissolve years of the toughest, nastiest graffiti from painted and unpainted smooth surfaces* within minutes. It removes aerosol spray paints, markers, pens, and almost all paints and coatings from smooth surfaces, such as lockers, desks, road signs, mailboxes, bathroom partitions, glass, security roll-up doors, and much more! Watch Dog® Smooth Surface Graffiti Remover works in as little as 5 - 15 minutes in a single application. Simply apply, let set, and rinse. Most projects require no scrubbing! Removes ALL paint, down to the surface. Technical Data Sheet SDS