Electroplating & Anodizing


Hard coating anodizing is a great metal finish for aluminum. This outer coating allows the part to be protected from corrosion and deterioration. Hard coat anodizing enhances many desirable properties of aluminum and the use of aluminum in many design applications formerly restricted to steel. Surtonics offers two different types of Hardcoat Anodize: Chemeon AA200 additive that runs at 32 degrees F, and Anodal EE Clariant at 55oF. Both meet MIL-A-8625 requirements. A teflon post dip is also offered on hardcoat per AMS-2482 type I, and MIL-A-63576 type I. 


  • Hardcoat resists corrosion - Our test results on 6061 aluminum indicated that the Hardcoat treated surface withstood corrosion in a five percent salt spray test for 336 hours.
  • Hardcoat can be colored - Applied at thinner coating thickness (.0005 - .001), Surtronics can dye Hardcoat with red, blue, green and black.
  • Hardcoat will extend the working life of your product - Commonly used on rollers, guides, trays and anything that requires a hard, damage resistant surface.


  • Our current size limits for Hardcoat black processing is 132" x 38".
  • Our current size limits for Hardcoat red, green, and blue are 24" x 24".


Aluminum parts which require installation of dissimilar materials (steel bushings, dowel pins, ect.) should not be installed prior to processing. However these materials can be masked using the best available techniques, but this type of processing can only be done at the customers risk.

When considering hardcoat anodize, it is important to consult with Surtronics to ensure receipt of a satisfactory product. Consider the following:

  • The application of the component
  • Environment of use
  • The aluminum alloy and temper
  • Corrosion and hardness requirements
  • Thickness range
  • Final dimensional tolerances allowances
  • Optimum location for racking