PURPLE POWER DEGREASER is a highly concentrated water-based cleaner and degreaser. It has a gentle bite with a powerful knick. It dilutes with water and cleans a variety of surfaces. For engines and greasy door jams, dilute 1 part PPD to 4 parts warer. For spotting carpets or other light duty work, dilute 1 part PPD to 50 parts water. Great for stubborn spots and stains.