Quote Originally Posted by twolaneblacktop View Post
Haven't done this for some time but I'll bet you can still have rattle cans filled with the correct primer at the PPG store. It is costly but works better than a roller deal. Remember that primer is just that. A coat of paint that prepares a surface to hold the finish you intend as the final finish. For the most part primer will not completely protect metal or any other material. That is what the paint coat is meant to do. I have a friend that painted his frame with rattle cans filled with the correct primer and DuPont Imron. Looks great after about eight years. It can be done, if you really want to...
You're picking up a thread from several months ago which is fine, as long as you realize what you're doing. True epoxy primer is a two part mix, primer and activator/hardener, and there's on way that it can be "loaded" at your paint store. A good auto paint store does stock epoxy primer in a rattle can, but it's a product that has a pushbutton "trigger" to release the activator, and once activated you have a limited time to spray the product and there is NO shelf life after it's activated. Anything unused will be a block of primer in an hour. Your friend that rattle canned his frame may have used a primer compatible with DuPont Imron, but I'd bet dollars to dimes that it wasn't an epoxy.

Like Robert said above, get a good primer, mix enough to do the job and put it on with a roller if you can't do better.