ENGINEER Screw Removal Liquid ZC-29 (Foam Type)

It removes rust surprisingly well! Foam type that adheres tightly to stubborn rust. Because it is neutral, you can work with it safely and securely. (It does not contain acids or alkalis.) It quickly penetrates and removes rust! Rust can be removed in seconds in small areas. For rusted screws on cars, motorcycles, farm equipment, ships, and plumbing parts, as well as in kitchens and other areas with water. This product may cause discoloration or staining, so please be sure to test it in an inconspicuous area first. For severe rust, apply several times. *The nozzle shape will be partially changed once current stock runs out (there will be no change in performance).