Zep Professional® Heavy-Duty Powdered Concrete Cleaner is an industrial-strength, fast-acting formula engineered to conquer even the most challenging accumulations of grease, oil and grime on both concrete and unfinished wood surfaces. This potent powder is designed for heavy-duty applications and possesses a unique built-in color indicator that activates upon contact with water. Its fast-acting formula readily dissolves, enabling deep penetration into surfaces such as driveways, concrete floors and warehouses to effectively lift and eliminate embedded soils.