Betco Unlock No-Rinse Floor Stripper - 640 fl oz (20 quart) - Fast Acting, Low Foaming - Clear - 1 Each Unlock Floor Stripper cuts through layers of old finish in minutes. High-power, high-speed floor stripper was developed to penetrate and remove multiple coats of burnished floor finish with a minimum of labor. Suitable for use on most surfaces, this fast-acting, labor-saving product requires little, if any, scrubbing and greatly reduces the time it takes to strip a floor. Powerful, professional stripper requires no neutralizing or flood-rinsing after use. Low-foaming formula works with cold water, saving energy. Little to no odor is released during use so it is pleasant to use. Each gallon covers 400 square feet. Dilution varies from 1:12 to 1:5 according to application.