[26679cj5]

I got some rocker guards for my jeep last summer and thought i was doing a good job prepping them. I cleaned them with purple power,rinsed thoroughly, sanded them, then rinsed again. I used self-etching primer andused Krylon fusion olive green spray paint on top of the primer.

We have only seen 4 or 5 uses of road salt here over the winter,but the rockers are already showing some rust in several spots. I really laid the primer and paint to these things, so I'm surprised that they are rusting already.

Is there anything else I should have done that wouldn't cost too much and could've made the paint job last at least another couple of years before rusting?

[itsonlyatruck]

clear coat them as that really helps i find but they shouldnt have rusted that quick.

[Zone]

It might be rusting from the inside out.

Self-etching primer (like Bulldog) is for adhesion, it's not a anti-corrosion product. Krylon is good for about a year, that's it. Krylon is $2.25 at Walmart, don't expect too much.

[mg2380]

Maybe there was still some residue left from that Purple Power cleaner… thus a good bond wasn’t made with the primer. I would have hit them with acetone as the final cleaning step. Then sprayed them with primer.

[mg2380]

You can also try an epoxy primer...

http://www.amazon.com/USC-Spray-Epoxy-Primer-Aerosol/dp/B0043YP8EC

[Foundrydude]

Fusion is designed for plastics, not for metal. Self etching primer is not a sealer, and I suspect Fusion is also not a sealer since plastic won't rust there's really no need for it to be a sealing agent.

An epoxy primer is a sealer.

Being a sealer means it won't let moisture pass. Ever see somebody run around with a primered panel that surface rusted within a year or two? The non-sealed primer allowed moisture to penetrate.