Rust-Oleum 254170 Professional Primer Spray Paint, 15 oz, Aluminum

I have no real experience in painting aluminum, but had a need to paint a 2' x 4' piece of new 1/8" aluminum with exterior latex house paint. So, bought a can of this stuff to prime it with, applied it per instructions... no issues. The top coat latex seems to have adhered to it very well.Only time will tell, but can at least report that application was straightforward: No runs, no adhesion issues. Drying time as advertised.

I used this primer on my new alumininm heads on my chevy engine. It really brought out the excellence.

Great price, good coverage. No runs in the paint.

I used it to prime a dinged up aluminum cover for a commercial mixer. I had to repair some dents / deformations with an epoxy filler (Marine-Tex). Everything was sanded smooth and degreased. After applying the primer, it had etched out the edges of the epoxy. I was able to fix it by applying a heavier second coat of the primer, waiting a couple of days, and sanding until smooth. There was no bare metal, so I applied my topcoats of Rust-oleum V2100 industrial enamel. It came out well, but the extra effort was a nuisance and days lost. I've since tested scrap aluminum with other epoxy (West System) and polyester (Bond-o) based fillers with the same results. Same with some paints. The fix I describe worked in all instances of edge etching.

did a great job

This arrived very quickly. It did a great job covering the aluminum sign I’m refurbishing. Very impressed. It’s Rustoleum so I expect it will last.

Primer went on smooth and even and top coat seemed to stick very well with no bubbling or blisters. Aluminum is a tough material to paint over so I hope this primer does the trick. Only gave mid marks for heat resistance because it is not being used in a high heat area, but I did dry the parts in front of a wall furnace in my basement and they got fairly warm with no issues.

Worked well as primer on aluminum