Challenger Cleaner & Degreaser tackles many cleaning applications. Interior surfaces: walls, windows, tile & linoleum floors, sinks & showers, or carpets. Exterior surfaces: outdoor furniture, garage floors, grills, lawn mowers, garbage cans, or aluminum siding. Industrial applications: trucks, heavy equipment, warehouse floors, or restaurant filters. Water-based cleaner is a biodegradable alternative to hazardous solvent-based cleaners that can stand up to any residential or commercial cleaning task. Cleans soot, grease, oil, dirt, paint, mildew stains, and more. Non-abrasive.