I'm curious about refreshing the stock Magura control perches and levers on my Airhead. I have a damaged one to experiment on. I was curious if they were anodized, but light sanding revealed it was clearly paint. I plan on sanding the old paint off and finishing with 400 or 600 grit to give a little tooth to adhere the paint. I didn't see any evidence of a primer coat when I sanded the test piece down but who knows? This is going to be a rattle can job so 2 part epoxy systems are off the table. I thought that some of you aviation types might offer some guidance on making paint stick to aluminum. I see references to etching primers (specifically SEMS) on the internet. I know a lot of aviation parts have zinc chromate on them.