Machined aluminum parts end up with lines, swirls and etching on the surface of the aluminum. To prevent these surface imperfections from translating through a coating or anodizing, the surface needs to be made uniform. If a polished surface is ultimately required, abrasive blasting the surface with Glass Bead will produce a smooth finish.
Before
After
The machine aluminum part (Before picture) was blasted with Fine (#13) Glass Bead to remove the machine lines and produce a highly uniform, matte surface finish (After picture). This parts was ultimately clear coated to produce a clean, bright finish. Different size of Glass Bead will each produce a unique surface finish on aluminum. As the Bead size increases, the surface finish will become more a peened finish and also brighter.
With high quality products and considerate service, we will work together with you to enhance your business and improve the efficiency. Please don't hesitate to contact us to get more details of bead blasted aluminum.