Can You Roll Rustoleum Over Bondo?

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Can You Roll Rustoleum Over Bondo?

Post by LV2DRFT on January 20th 2012, 12:26 am

After applying body filler, letting it dry and sanding it, can I roll Rustoleum right over it? Or should I be priming it in some way? If so, which primer would you suggest? What happens if you don't put primer over the bondo?

Thanks!
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Re: Can You Roll Rustoleum Over Bondo?

Post by superdave on January 20th 2012, 7:28 am

Bondo is porous and I'd imagine that it might show through if you don't prime. Any sandable automotive primer would work.

I'm sure somebody here has tried that and will contradict me, but I still wouldn't try it without a little primer.
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Re: Can You Roll Rustoleum Over Bondo?

Post by 63Falconconvert on January 20th 2012, 7:23 pm

superdave wrote:Bondo is porous and I'd imagine that it might show through if you don't prime. Any sandable automotive primer would work.

I'm sure somebody here has tried that and will contradict me, but I still wouldn't try it without a little primer.

In total agreement with superdave. If you don't seal your mud work with primer the Bondo will "drink" the paint and you will get bleed through.
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Re: Can You Roll Rustoleum Over Bondo?

Post by LV2DRFT on January 24th 2012, 12:50 pm

Thanks... I'm buying primer!
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Re: Can You Roll Rustoleum Over Bondo?

Post by retired plumber on January 28th 2012, 8:55 pm

I agree with all the above.
Mike
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