Type III aluminum anodizing, also called hardcoat aluminum anodizing can be applied to CNC machined aluminum parts to increase their wear and corrosion resistance. A highly abrasive resistant coating will be formed on the hard coat anodized aluminum parts, the metal surface will be harder even than tool steel. The thermal and dialectical properties will also be improved. Junying is a full CNC services supplier that provides an extensive range of surface finishing and post-processing processes for 6061-T6 aluminum parts, including as machined and anodizing type 2 and type 3. Based on your drawings and requirements, weâ??ll perform the specific aluminum anodizing to reach desired appearance and specification with visual aesthetics and high uniformity, hardcoat anodizing can change the color of the aluminum machining parts depending on the alloy grades and anodic thickness. A deep gray-black color is more common for 6xxx-series of aluminum. Please feel free to contact us for more details about our aluminum anodizing services, if tight tolerances are needed, we will keep in close communication with customers to ensure the required dimensions and precision can be achieved.