Walter Surface Technologies introduces a new, biodegradable non-corrosive rust-removal solution called Bio-Rust. One example of the solution’s use is to clean steel prior to painting or coating operations or for safely cleaning parts. The solution is VOC-free (Volatile Organic Compound-free), solvent-free, and phosphate-free, according to the company. Bio-Rust is also certified NFPA Diamond 0-0-0 (National Fire Protection Association – USA, stating that product is "healthy," "non-flammable’,’ and ‘’stable’’).

The product can remove 1.0 kg (2.2 lbs) of iron oxide per 20L of Bio-Rust liquid, according to the company. Once the rust is removed, the user rinses parts with water, then immediately applies a corrosion protection product (such as OMNI by Walter Surface Technologies) or a long-term corrosion inhibitor.

Bio-Rust only reacts with iron oxide. It zeroes in on the problem without damaging the parent material, non-ferrous alloys, painted, or plastic surfaces, the company stated.