Hardcoat Provides Anodizing Solutions for Tight-Toleranced, Challenging Aluminum Parts. we Serve the Defense, Medical Device, Aerospace and Commercial Industries. Highly Rated for Over 40 Years. Based in Minneapolis, Serving Customers Nationally. Anodizing services provided. Service includes hardcoat aluminum anodizing, sulfuric acid anodizing, chrome conversion coating, cleaning and etching and stripping of hardcoat, sulfuric anodize or chromate parts ...