Rust-Oleum Professional Aluminium Primer Spray Paint, 425 g (White)

I used this to pain the aluminum under my gas tank on my boat. It works just as described and sticks really well to aluminum.

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.

We used this on some deck art work. The metal silver result is really nice and worked very well for my project.

Fantastic product. Repainting a outboard motor lower unit. This product went on smooth and even. Unfortunately, I used Quick Silver paint afterwards and the uneven and spatter from that paint ruined the project. Use rustolium paint NOT Quick Silver

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.