Krud Kutter Pre-Paint Cleaner is a ready-to-use formula that cleans and deglosses surfaces in one simple step. This biodegradable formula can be used in place of TSP as a surface preparation to improve paint adhesion. It removes dirt, greaser, grime, smoke, scuffs, mildew stains, crayon, old wallpaper paste and wax from painted or unpainted surfaces. This can also be used as a wall preparation prior to hanging new wallpaper.