NextGen Path to Enhanced Trivalent Chromium Pretreatments

NextGen Path to Enhanced Trivalent Chromium Pretreatments

For more than half a century, the finishing industry standard for conversion coating of aluminum aircraft components and surfaces was pretreatments that utilized hexavalent chromium. The result was an iridescent golden color change for ease of inspection, but the chromate was also a known carcinogen and environmental pollutant.