INTERNATIONAL HARDCOAT FULL-SERVICE ANODIZER From our 104,000-sq. ft. state-of-the-art facility in Detroit, Michigan, our mul ... tiple automatic and semi-automatic processing lines finish parts for industries ranging from automotive, aerospace, military, and firearms to food preparation, medical, and recreational. Manufacturers as far as Texas, California, and Washington State and as near as Ohio, Illinois, and Indiana seek out our expertise, quality, delivery, and competitive pricing. OUR HISTORY With the advent of the commercial hardcoating process, IHC Inc. started out in a small UPS bay in Detroit in 1962 to provide hardcoat and anodize services to the aerospace industry. As capability grew so did the business. Moving into additional markets such as military, automotive, and cookware led to two more relocations and expansions. Today IHC operates one of the largest job shop anodizing plants in the country. read more