Hex chrome chemical conversion coatings increase the corrosion resistance and paint adhesion in aluminum; from general household appliances to military aircraft parts.  The resulting processes produce a micro-thin chromate layer for those close tolerance, corrosiion resistance, and electrical conductivity requirements.  

Available processes are:

• MIL-C-5541E Class 1A, 3 (gold or clear)
• AMS 2474
• AMS 2473
• STP58-405  LMA
• H-314543 Raytheon