249340 Automotive 12-Ounce High Heat Primer Spray Paint, Gray

Had some rust spots developing on a pellet smoker. I pulled the metal cover off and sanded it down to remove the rust and then hit it with this primer. Primer lays down nice and smooth and dries almost instantly. I'm still working on a stainless steel high temperature finish coat but I believe that this primer will help to ensure good adhesion and eliminate any potential for peeling or blistering for temps up to 500F that I regularly cook at.

Works very well when certain common sense best practices are followed. Clean the part thoroughly, that means basic and acid washes beforehand, rough up surface (I used 60 grit) where applicable. Once clean always hold part with hanger or clean non-powdered gloves, after first coat, the same precaution needs to be adhered to. Coats should be thin and consistent. Ideally I would not move forward to final color coats with anything less than two complete prime coats. Part of the reason I coated my exhaust is that I am moving to a winter salt state, soooooo yeah, coat it or watch it rust into oblivion. I tend to go overboard on everything, so the whole system has 4-6 coats of primer depending on location and base metal, with 1-3 curing cycles (where possible), prior to color coats. Coverage is actually pretty good. After the priming process I sanded again after curing but prior to final color coat. I used black, but I imagine most colors (which are in no way true to color expectations or vibrancy... this stuff isn't jet-hot) will hold up the same depending on application and part cleanliness throughout the process. If applied and cured properly I see no reason why flaking, delamination, or "chipping" should be too much of an issue within reason. I'm a year into this job and as of my last oil change, I was able to fully inspect my work and found none of the above. I am happy with the product so far and it worth noting, this is NOT a thermal coating, it is purely protective.... and i suppose aesthetic for some. Time consuming to do right, but if the purpose is to protect your investment, well, take the time and do it right. Can you just go to town on an exhaust part and throw it on the car? Sure. Will it be as durable? Probably not. Take all of this as you will.

Used this primer on my wood burning stove when I reconditioned the outside. Really bonds well and did exactly what I needed. Dries fast- perfect base coat for the other high heat paint I used. Rust prevention was Meh but honestly I probably just didn’t do a great job removing it from areas. Overall worth the purchase. I’m nitpicking

Nice paint

I thought it was a good idea to use this high temp primer on my boat trailer brake drums to then coat with Rust-Oleum Caliper Paint. Then I found out about heat curing process for the primer, and how bearing race should be removed when heating beyond 250 degrees. Had I known that beforehand, I would have just applied Caliper Paint to brake drum WithOut this primer. I Recommend that Plan as The Better Choice for any brake drum that is not on the race course.

The item arrived on time, was exactly as advertised, and worked well for my project.

Used to prep my fireplace door for painting, went on very good and was a nice base for the black finish.

Perfect

Excellent product.Very happy with the results.A++++

Great coverage and a necessary to use before applying the top coat of high heat paint. Follow instructions

Its thick and covers properly, cant tell about how strong to protect from rust.. I used it as primer and its good

This primer is good! Very OVER PRICED on Amazon though. Found it at Lowe's for a third of the price but i had already used the can i bought on amazon.

Good