Krud Kutter Pressure Washer Conc Concrete Driveway Cleaner gallon. This concrete and driveway cleaner pressure washer concentrate is a major breakthrough in driveway cleaning technology. The proprietary formulation of Krud Kutter Pressure Washer Concentrate Concrete Driveway Cleaner contains Oil Grabber, a unique additive that penetrates the surface to dissolve tough stains from grease, oil, algae, mildew, and dirt. The concentrated formula is ideal for use on concrete, brick, masonry, asphalt, driveways, patios, sidewalks, garage and basement floors. It also prepares surfaces for finishing by promoting the adhesion of paint, stain, and sealers. This product contains a proprietary blend of biodegradable surfactants, detergents, and emulsifiers, in a water-based solution with no petroleum solvents, bleach, or ammonia. When mixed (1:10) with water, one gallon of concentrate will clean up to 2,000 square feet.