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Seeking Alodine replacement

I am rebuilding two airplane wings made of 2024-T3 alum. I am trying to find Alodine in the powder form. I was told that I could use Iridite 14-2 as a replacement. What is the difference between the chemical Alodine and Iridite 14-2. I am familiar with Alodine but not Iridite.

J. Rinehart

November 2007

Hi, J. The operation you are trying to perform is MIL-DTL-5541 [⇦ this spec on DLA] Chromate Conversion Coating. Alodine is a Henkel trade name for a product used for this, and Iridite is a Macdermid trade name. You can also obtain chemicals for chromate conversion coating from Chemetall and others. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
(Ted can offer longterm or instant help)
finishing.com - Pine Beach, New Jersey

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