Aluminun Protectant

Waterdriver

Goblin Guru
I haven't used or heard of either one but Sharkhide looks pretty cool. Wish I knew about it earlier.
I ended up clear coating mine with polyurethane, which I think might yellow over time.
 
The fellow from TheFabForums is really keen on Sharkhide, he has got some videos on youtube featuring parts coated with it.
 

ctuinstra

Goblin Guru
We used a clear coat paint on other aluminum items that were professionally cleaned. I'm not sure how long it will protect but it was better than nothing.
 
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