Krud Kutter Gloss Off PrePaint Surface Prep gallon. This no rinse, one-step formula is specially designed to prepare high gloss and other hard-to-stick-to surfaces for repainting or refinishing. Krud Kutter Gloss Off PrePaint Surface Preparation is specially formulated to help new paint and varnish bond to old finishes, or as a wall preparation prior to wallpapering. It removes dirt, grease grime, smoke, nicotine, mildew, food stains, heel marks, crayon, old wallpaper paste, and wax from painted or unpainted wood, metal, or vinyl wallpaper. NOT for use on porous or non-washable wallpaper as it will de-gloss most surfaces. This product contains a proprietary blend of biodegradable surfactants, detergents, and emulsifiers, in a water-based solution and has no petroleum solvents, bleach or ammonia and is non-flammable, non-toxic, non-abrasive.