Another way to remove paint from bricks is to use chemicals. Chemicals react with the paint to dissolve it. It is a very time-consuming, expensive and dangerous for the environment process. The chemical must be applied to the paint layer by layer and removed in subsequent stages with each layer, using high-pressure washers or wire brushes. After reaching the last layer, both high pressure and brushes damages layer of the brick. However, this is not as extreme damage as in the case of sandblasting.