White aluminum oxide powder

[auldscott]

A fellow member asked me how to remove the white aluminum oxide powder he was finding on his barn find motor. It occurred to me that I don’t know how, except to use steel wool. That has its own side-effects.

Can this material be reduced to aluminum with a liquid, the way rust can be converted?

Must it be mechanically removed? If so, what is best? Blast media?

And finally, how can it be kept from coming back?

Thanks.

auldscott

[crosbyman]

i think plain vinigar can help….try googling for solution

Joining AOMCI has priviledges 🙂

[dmbono]

I use aluminum brightener pump spray from NAPA- mild acid.

[PugetSoundBoater]

Would that NAPA aluminum brightener work on the water jackets surrounding the cylinders to deal with salt water corrosion ? Do you need to nuetralize it after applying? I’ll have to check it out.

"Some people want to know how a watch works, others just want to know what time it is"
Robbie Robertson

[garry-in-michigan]

Vinegar is a mild acid – neutralized with backing soda. . . . . . 😀

Garry in Tampa

[archangel]

I was just reading this a couple of days ago:

https://www.everbritecoatings.com/Quick … uminum.pdf

The product is a protector, but the instructions are for pre-application cleaning. I found the info on Feathercraft.net where some members have used the process to refurbish anodized classic Feathercrafts.

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