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I would agree with Bob to a degree - I've been powdercoating some parts, but not the engine mount or cabin frame or any other part that has critical welds. Nearly everything I've read says to not powdercoat engine mounts and paint a white/light color so weld cracks will show up as a dark line. I think powdercoat is great for non-critical parts like the side panels of the optional center console - the tough coating will hold up better to getting kicked and scuffed, etc.
By the way, you can get true 2-part/2K epoxy primer in a spray can - Rustoleum makes it. You won't find it at the big box stores - usually you have to get it from an industrial supply like Grainger. It's really pricey - about $30/can, and once activated (you push a button on the bottom of the can to mix the 2 components), it has a 4-day pot life. That's what I used on both my engine mount, cabin frame, and gear/strut mounts. The cost is worth it, though, no spray gun clean-up when you're through! For economy, just keep prepping parts and priming until you run out of epoxy!
I didn't believe it, so I checked...it does exist! Thanks for the tip. That would be the way to go for me, next time.
I've had too many bad experiences with rattle can paint & would not use it anywhere I was serious about rust protection. Maybe it's the Gulf Coast environment I'm in, but I get rust within 1 year with rattle can paint jobs.
Here is a link to the 2 part epoxy primer at Grainger's. http://www.grainger.com/Grainger/RUSTOLEUM-Aerosol-2K-Epoxy-Primer-...