Rust-Oleum 249322 Automotive Self Etching Primer Spray, 12 oz, Matte Dark Green

This is a really good primer. If you’re painting bare metal, you need to use this. The etching primer binds to bare metal, giving the paint something to bind to. I use it on anything I paint. Works very well. As far as rattle cans go, rustoleum is my go to. I’ve tried other brands just to see them fail.

This worked very well for my application. I painted a hitch coupler that I welded up from bare metal. The primer was easy to apply evenly and made for a good looking top coat. It has held up impressively being used on an ATV trailer frequently towed over gravel roads.

Used this on an aluminum mailbox that needed some TLC. So far so good, the finishing paint is holding well to the aluminum.

Great product works as described in ad and easy to use. Well built design and good quality. The price was a good value and fast shipped.

Used it as a primer on an old aluminum shower frame. I throughly cleaned and sanded/scuffed, prepped with rubbing alcohol to clean off residue, and sprayed. It went on smooth and even, even though it was a bit of a chilly day in my garage. However, 48 hour cure time wasn't enough - after letting the top coat of black paint dry an additional 2 days, although carefully reinstalling, it still chipped down to the aluminum. The pieces I let cure for 4 days seemed to do better, nothing chipped or was easily scratched off. I would suggest a long long cure time - longer than the recommend. Time will tell how long it actually holds up. So far (the shower is a light-use guest shower) it's doing ok, except for the initial scratches and chips that happened while re-installing.

Perfect for my restoration project

Adheres well to metal, couple of thin coats and a wet coat, flawless.

i like this self etching primer spray alot. It works! It's been making me happy for more than 25 years.