- This process treats aluminum to form protective film to prevent corrosion for indoor application
- Used as a primer or bonding coating for paint
- Used to produce conductive coating to prevent corrosion in the electronic applications.
- Coating is also referred to as Iridite, Alodine, Chemical film, yellow chromate.
Chemical conversion coating/Chromate conversion coating/Chemical film/ Iridite/Alodine/ yellow and clear coating on aluminum are covered by following specifications.
Andarn has capability to perform and certify finishing to the following specifications
| Specification | Salt spray requirement to indicate corrosion resistant | Other test requirement |
|---|---|---|
| Mil-C-5541E, Class 1A and 3Yellow color unless specified otherwise | 168 Hours | Paint adhesion test, low resistance for class 3 |
| Mil-Std-171D, Finish # 7.3.1 and 7.3.3 | ||
| Mil-F-14072Finish # E512(Class 3) and E513(Class 1A) | ||
| Mil-Std-186E, Finish #208 | ||
| AMS-2473 | Low resistance | |
| AMS-2474 |