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Old 09-06-2014, 04:09 AM   #15
Rivet Master
2005 19' Safari
Join Date: Aug 2004
Posts: 2,450
When I was much younger and worked in a factory where they processed aluminum parts, they cleaned castings in acid baths, then used Alodine as a temporary protective coating to slow oxidation until the parts could be painted. The Alodine coating we used only lasted a day or two, and parts that weren't painted within 24 hours had to be returned to be cleaned again and recoated before painting.

Unless the Alodine you are asking about is much different from what we used to use, I would suspect that this product won't last long, if not followed by a more permanent treatment or coating.

By the way, Alodine used to come in colors. I know that it came in "clear"; but we didn't use it, because you couldn't visually tell if the part had been treated. We used "yellow", which was kind of golden in color.

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Old 09-06-2014, 06:22 AM   #16
Rivet Master
1994 30' Excella
Mississauga , Ontario
Join Date: Jun 2004
Posts: 961
If you are going to do a paint finish on small parts, why not use an acid-etch primer. It etches and primes the part in one step and is designed for use on aluminum. Then topcoat with whatever you want.

Al and Jean

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Old 09-06-2014, 06:29 AM   #17
Rivet Master
1981 31' Excella II
New Market , Alabama
Join Date: Sep 2011
Posts: 5,706
Be careful with Alodine. It is very toxic.

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Old 09-06-2014, 06:33 AM   #18
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2013 25' FB International
Liberty Corner , New Jersey
Join Date: Mar 2014
Posts: 195
I am waiting for more technical data, but it looks like a touch-up option to areas that are displaying the potential for corrosion.

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