Features and Benefits Environmentally safe, non-toxic water based product Removes rust in minutes, without scrubbing Will not harm other metals, rubber, plastic, PVC, Viton, most paints, or un-rusted steel Restore rusted tools, auto parts, and firearms to like new condition One gallon de-rusts up to 300 pounds of steel Case of (4) 1 quart bottles A product of extensive research, EVAPO-RUST™ rust remover is an environmentally safe water based product that removes rust in minutes, without scrubbing. It’s so easy to use, anyone can restore their rusted tools, auto parts, even firearms to like-new condition. EVAPO-RUST™ will not harm other metals, rubber, plastic, PVC, Viton, most paints, or un-rusted steel. In fact, immersing un-rusted objects in EVAPO-RUST™ provides excellent long-term rust protection.