Trivalent Chromium Pre/Post Treatment Corrosion-Resistant Coatings (TCP)

The Technology & Background: In order to improve the corrosion resistance and bonding of paints to aluminum alloys, anodized aluminum and sacrificial coatings, a surface treatment is required. A class of chemicals called conversion coatings is used for this purpose. For more than 50 years the standard corrosion resistance surface coatings for aluminum or zinc-coated alloys in both military and industrial applications has been hexavalent chromium, which is a highly toxic carcinogen. After several years of research and development at the Naval Air Warfare Center Aircraft Division, Patuxent River, MD a new line of environmentally benign and highly effective coatings for application on aluminum and zinc-coated alloys was developed named Trivalent Chromium Pre/Post Treatment Corrosion-Resistant Coatings (TCP). Technology Solution: TCP was invented as a more environmental benign coating than hexavalent chromium without sacrificing corrosion resistance or other performance characteristics. A family of four United States Patents for these corrosion resistance coatings were issued and are now available for licensing. Summary of Benefits: There are many benefits to TCP. They are the only non-hexavalent chromium conversion coatings that will fully meet all military specifications for pre/post treatment of aluminum. Numerous inside and outside laboratory and field test show that TCP is the best all-around alternative to chromate coatings available at this time. Additionally, its improved electrical conductivity makes it ideal for applications in the electronics and telecommunications industries. A few of the benefits include: Can be applied at room temperature by immersion, spray or wipe; Contact/dwell time two (2) - ten (10) minutes; No post treatment/cures required; Easy to mix and handle; Provides good surface adhesion; Meets EPA and OSH Requirements; Cheaper to make than chromate conversion coatings. Summary of Benefits: The four TCP patents are environmentally benign and highly effective corrosion resistant coatings recently developed by the U.S. Navy are available for licensing and can be utilized in the following areas: Boats; Swimming pools; Window frames; Wheels; Automobiles; Aircraft; Bicycles; Fasteners; Military vehicles 2006 FLC National Meeting Award Winner