Flash Rust is defined as the rapid onset of corrosion that occurs on the surface of a metal shortly after it is exposed to air and moisture. It's a primary concern for those in the blast cleaning industry. Although Flash Rust occurs relatively quickly, it can be easily prevented by taking the necessary precautions prior to wet or dry abrasive cleaning operations.
This guide covers how flash rust occurs, and the variety of severity it can occur in. It also covers prevention techniques and corrosion inhibitors that can be used to prevent flash rust from occurring during abrasive blasting.