Primer over TS paints??

Hi all,

I apologized for the noobish question.

I have the Revell Superamerica that is almost perfect, except that the body had several bumps (dunno the exact term) that bleed through the paint (these bumps were invisible when I put primer for the first time).

I never liked to use DOT, so I was thinking of sanding the whole body adequately before primer it again. But, of course some leftover paints will be left on the body, therefore is it okay to put primer over the paint again to make sure that it is smooth?? Primer would be black sandable duplicolor.

Please let me know if you tried it, and if there is any horror involved??

Thank you!

You can certainly strip TS paints safely without DOT- isopropyl or denatured alcohol will easily and safely do the trick.

But if it's stripping that you entirely wish to avoid, you can in theory apply primer straight over paint without a problem- provided the paint and primer are compatable. In fixing chips, I have sprayed primer and paint atop clearcoat, and then reclearcoated successfully.

I haven't tried it in large areas, and I'd be unsure about spraying Duplicolor over Tamiya. It's entirely possibe you'll get away OK, but the chances of a reaction are not zero.

Got any pics of your 'bump' problem? Maybe we can diagnose it so that it doesn't happen again.

Hey Andy,

I know that Duplicolor might be a little risky, so I am going to overcoat it with tamiya Grey Primer.

The bumps that I'm talking about is where the plastic showed tiny, super shiny, and bumpy spots due to manufacturing of the plastic itself. I believe some members here called it "ghosting."

I will try to get some pics if possible.

Yeah, I think the TS grey would be a better bet.

I've heard 'ghosting' used to describe a couple of different problems, so some pics might help us figure out what's going on. As a guess, it might well be that the original layer of primer wasn't thick enough to keep the plastic and paint solvent from reacting.

I'd suggest that if you are going to re-prime it anyway, just strip the paint. I recently used 91% isopropyl alcohol to strip an old T-Bird, and WOW, I was amazed at how quickly the paint came off (TS paints). I would stay away from duplicolor primers all together. I have had SOME good luck with them, but other times, the primer etched the plastic leaving a "wrinkled" finish that was INSANELY difficult to remove.

I'd suggest that if you are going to re-prime it anyway, just strip the paint. I recently used 91% isopropyl alcohol to strip an old T-Bird, and WOW, I was amazed at how quickly the paint came off (TS paints). I would stay away from duplicolor primers all together. I have had SOME good luck with them, but other times, the primer etched the plastic leaving a "wrinkled" finish that was INSANELY difficult to remove.


I've used duplicolor for primering half of my model now. The funny thing is that "wrinkling" thing occured when I used the "on sale" grey duplicolor primer. and never occured when I bought them in premium price or black/white primer.