Chromic Acid Anodize

Description

  • Replace chromic acid anodizing with boric sulfuric acid anodizing

Advantages / Limitations

Chrome
  • Corrosion resistance, and other beneficial surface properties
  • Strictly regulated due to its toxicity and suspected carcinogenicity
Boric-sulfuric
  • Produces coating properties that are very similar to those achieved with chromic acid
  • Excellent corrosion resistance and paint adhesion
  • Less effect on fatigue properties than sulfuric acid
  • Reduces costs associated with emission control equipment and hazardous waste disposal

Resources