Type III Hard Anodization

MIL-A-8625, Type III (hardcoat):

Type III Anodization is sometimes referred to as “engineering hardcoat” or just “hardcoat.” Using lower bath temperatures and higher current than Type II Anodization, much harder coatings are created out of virtually the same bath concentrations.

Type III hard anodize is commonly applied to aluminum parts exposed to corrosive environments where extreme hardness and increased oxide thickness are advantageous. It is also beneficial in situations where exceptional abrasion resistance is necessary or improved electrical insulation is needed. Automotive, aerospace, military, electronics, sporting goods, and cookware are among its myriad of uses.

Benefits of Type III Anodization:

  • Significantly harder coating than Type II
  • Several times thicker coating (between .0015” and .003”) than Type II
  • Unmatched abrasion resistance for aluminum


Part sizes are limited by tank size of 44”x32”x36”

Why Peak Finishing?

Peak Finishing offers superior results for all hard anodized products at quick turnaround. Rely on our expertise for top quality and superb customer service. Contact us today for any questions, concerns, or requests about our type iii hard anodizing services in Utah. Our highly trained team is here to help you.

We are the only service in Utah County to offer hard anodization, but we can service the Salt Lake City, Provo, Ogden, or St. George areas too—or anywhere else in Utah! In fact, we’re only 20 minutes from the point of the mountain, and only a day away via UPS or Fedex from anywhere in Utah and parts of Idaho, Wyoming, Nevada, and Arizona. We’re just two days via UPS ground from any place in the Western United States. We welcome jobs from anywhere in the country looking for a quality product with great customer service. Visit our Get a Quote page for pricing and to request a quote.

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