When you are blasting a work piece, the abrasive grain should hit the piece and leave little trace except for the expected profile you're trying to achieve. However, if you are using a lower quality blasting abrasive with a lower bulk density and more fines, you may not be getting a very clean profile. A low quality abrasive can leave impingements upon the surface of the piece. Fine impingements, that become embedded in the surface by either fines or low bulk density grains, can introduce iron ...This story is related to the following:Micro Blasting Abrasives |