How to remove mill scale with a Bristle Blaster

Mill scale is iron oxide that forms on a surface during hot rolling of steel. During rolling, the high temperature involved causes oxide to form over the entire surface, which only increases in quantity as the rolling process progresses. The spots are often hard, but at the same time very brittle. The combination of the high temperature and the large amount of pressure exerted during the rolling process ultimately leads to a blue-grey surface, which we call the rolling skin.

More about mill scale can be read on Corrosion Alliance

Cor has taken the challenge for Corrosion Alliance to show how to treat Mill Scale with a Bristle Blaster. The video shows a realistic picture of how the Bristle blaster can remove this layer.