Arro-Mark® has the removable marking products that Galvanizers approve. These pens will completely disappear, down to the bare-metal, before the final galvanizing process.
If you are a galvanizer or are sending your steel off to be galvanized, Mighty-Marker® Galvanizer Removable (alcohol-based) and Flomaster® Galvanizer Removable (water-based) markers are the pens you need to ensure your steel is completely cleaned from the galvanizing bath.