On Sun, 30 Jul 2017 13:14:42 -0400, Frank Krygowski
wrote:

On 7/30/2017 10:07 AM, wrote:
On Sunday, July 30, 2017 at 2:00:23 AM UTC-7, John B. wrote:


Does anyone have any suggestions on how, or with what, to coat highly
polished aluminum to, at least, reduce the corrosion to a reasonable
level? Say a once a year polish?

http://www.wikihow.com/Anodize-Aluminum

Long term polished aluminum usually has a finished layer of some wear resistant material such as two part urethane clear coat.

I remember when the pre-Rodale _Bicycling!_ magazine had an article by
Fred DeLong on how to anodize bike parts at home. IIRC, he used a 12V
car battery as a power source. Not that I ever did it.

Those were the days a person could frequently learn something from a
bike magazine. Now it's mostly which bike you MUST buy this month, or
which shorts make your legs look sexiest.

Yes, anodizing can be done with a battery charger, battery acid and a
plastic pot, but what little I have done leaves a sort of "matt"
finish and I wanted a glaring, glossy, finish.

I didn't try urethane clear coat but they might be a solution as the
spray on lacquer didn't work and the thinned epoxy didn't either
although that might have been lack of preparation.

There is a shop here that decants gallon cans of urethane into small
(half pint?) cans so if he has clear coat it would be a cheap
experiment. I'll give it a try next time.
--
Cheers,

John B.