Evapo-Rust RB018 Keeps Metal Rust Free for Up to 12 Months When stored Inside, 640. Fluid_Ounces Let Evapo-Rust do all the work for you without having to use any gloves, masks, or protective eye wear. With Evapo-Rustyou can remove rust to bare metal without sanding or scrubbing. Will not harm metals, rubber, plastic, wood, glass, PVC, Viton, most paints, most chrome, or non-rusted steel. A water based rust inhibitor, ideal for home or shop use. Its non-toxic, non-corrosive, and contains no acids, bases, or petroleum solvents and Biodegradable