Help needed

[Aircav]

Hi'
I'm on with a Revell Do-335 at the moment and I've just discovered crack's in the form of white line's in the plastic on the model, there around the front exhaust's
and on the uppersurface of the right wing from the center of the cord at the wing root going out to the leading end to about mid-span.
I've never seen this happen before can anyone please tell me is it something I've done wrong or is it something wrong with the plastic.

All the best from a pissed off
Steve
   

[nev]

Are these cracks that need filler, or can they just be painted over?

[Aircav]

Hi' Nev,
I think I can get away with painting over them, but I'm a little worried they could get bigger

[John Howling Mouse]

Ooooh, that IS weird.  

Not sure I understand: the cracks are in the plastic itself or in a coat of paint you've already applied?

Only time I've seen something like this before is when I've used imcompatible paints by mistake (oil can go on sanded acrylic but never go the reverse: why do I keep forgetting that?).  Did you primer it in white, though?

Is the original model molded in white?  If so, I'd guess the integrity of your paint (an enamel or sprayed laquer?) is breaking down.  Has happened to me when I've sprayed such paints in too heavy a coat when it's very humid and warm.  And, if this is the case, your fears might be justified: it could very well start spiderwebbing even more so.

Worst case: you may have to wet-sand it down, just enough to roughen the surface in order to achieve some tooth.  Then re-spray light coats with a compatible paint.

But if it's just in the plastic itself and you haven't painted anything yet: you've got me stumped!

Keep chanting: "Models are fun...models are fun..."

[Aircav]

Models are fun....models are fun....models are fun....IT's just in the plastic...models are fun....I've not painted it yet....models are fun....models are fun....models are fun...aw h*ll where's me drink.......hic...hic....hic.....**