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Posted: 12/21/2014 4:30:03 PM EDT
| How would you go about stripping anodizing on a lower, upper and rail without blasting. I want to cerakote a couple projects. |
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You can use lye to remove the anodized layer. Similar to oven cleaner. NaOH
Etch – Red Devil Lye 2 tablespoons per gallon DI water. 120g/L -NaOH bath 2-5 minutes, agitate every so often until a greyed/blk. -Spray DI water to rinse off over NaOH bath. -DI water bath covering lower, agitate, pour off and change water let soak for a few minutes. I assume your trying to pit the surface for the Ceracoat to adhere to. |
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Quoted:
A little googling tells me a chromic phosphoric acid solution does this without messing up the aluminum. But if you don't mind the etching, try oven cleaner. This works really good, I have used it many times at work. The make up is actually called out in the mil spec for anodize(MIL-A-8625) due to it's use in a coating weight test for anodize. I wouldn't use anything with NaOH (sodium hydroxide) due to too much stock loss of the substrate. |
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