Hardcoat Aluminum Anodizing
at room temperature

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• Possible to work without cooling equipment

• Decrease of sulfuric acid concentration by 40%

Widely spread technology of hard coat anodizing of aluminum alloy in sulfuric acid specify that the electrolyte must be cooled to  -7ºC (20ºF)  to  +2ºC (35ºF). Cooling to such low temperate requires powerful refrigerating equipment plus special cooling agents. 

Special additive Heatan-90 allows to conduct the anodizing process at room temperature.

By adding Heatan-90, the amount of sulfuric acid in electrolyte can be reduced by 40%.

Our technology does not differ much from existing standard technology of aluminum hardcoat anodizing. Our process allows for anodizing at a higher temperature up to 35º C (95ºF) for regular anodizing and up to22º C (71ºF) for Type III Hardcoat) by sharply decreasing the aggressiveness of electrolyte, achieved by:

                     -  Changes in concentration of regular components of the electrolyte.
                     -  Special inhibitor additive Heatan-90.

Heatan-90 is added during initial electrolyte preparation, and later during electrolyte correction (usually twice a year).