Ok, where do I go now ?

Dan-if the paint is fresh just soaking in thinner should do (unless it's lacquer). Paint is a complex thing-maybe the topcoat paint was too hot, or the primer not dry enough. Once stripped I would try other paints. I buy my primers at auto shops-they're cheaper and more durable.

Tamiya primer is a laquer. I don't know about their color sprays though. I would **NOT** recommend soaking the model in laquer thinner. It will dissolve the plastic over time.

Here is a link to some stripping ideas on Bonedigger's site:
http://www.bonediggers.com/1-3/strip/strip.html

I personally prefer Castrol Super Clean but it doesn't do a very good job on laquers, at least not in my experience.

Personally, I think I'd first try to smooth the surface with some very fine steel wool or ScothGuard pads and then just spray another coat of primer. Worst case you lose some surface detail but if you are careful with the sanding that should be minimal.

Best stripper for lacquer and enamel paints is spray oven cleaner. Make sure it is not the odor free weak stuff, use full strength Easy-Off or similar. Spray the model down with it, then seal it up in a ziplock bag or tupperware container for 24 hours. Remove and rinse off with water. You may need to take an old toothbrush and scrub a little in recessed areas to remove all the paint. Works great though.

QUOTE: Originally posted by HeavyArty Best stripper for lacquer and enamel paints is spray oven cleaner. Make sure it is not the odor free weak stuff, use full strength Easy-Off or similar. Spray the model down with it, then seal it up in a ziplock bag or tupperware container for 24 hours. Remove and rinse off with water. You may need to take an old toothbrush and scrub a little in recessed areas to remove all the paint. Works great though.

No, oven cleaners are second best.
Castrol Super Clean beats them all hands down and it is non toxic like brake fluid is.
Brake fluid is dangerous stuff and I do not recommend you use it.
Get it in your eyes and you can forget about modeling again.

Mike