i need paint help BADLY(big pics 56k warning)

[p8ntbllr_182]

im new to this fourm if this is in the wrong section can a mod please move it.

ive had some really big problems with my body and its really starting to piss me off it makes me want to do some of this --> . has this happened to anybody? how did can i fix it. ive tried to sand it with 600 grit paper and when i respray it it cracks again instantly ive done this step like 3 times. this is just the base tamiya t-17 silver paint . i didnt primer before paint is that the problem ? if it is i guess ill have to primer my next kit i build but im tired of this one please tell me what i can do.

pics:






its mainly on the hood a bit on the roof and the rest is spread around the side of the rear bumper the doors and fenders , the trunk and front bumper seem to be fine

[stevenoble]

A primer would certainly help your problems.It looks like the paint has reacted with the plastic.Also did you make sure the model was absolutely clean and free of all contaminants before you sprayed the silver? Any trace of grease etc and the paint won't stick too well.I would let it dry,sand out the affected areas and lightly prime the model.Then apply your silver again in light coats.Other alternative is to strip off the silver and start again with a primer this time.Also 600 grit is too rough.Use 1200 or 1500 for sanding back the imperfections.600 will put more scratches in than it takes out.This could also be the cause of the cracking effect.

[p8ntbllr_182]

Originally Posted by stevenoble

A primer would certainly help your problems.It looks like the paint has reacted with the plastic.Also did you make sure the model was absolutely clean and free of all contaminants before you sprayed the silver? Any trace of grease etc and the paint won't stick too well.I would let it dry,sand out the affected areas and lightly prime the model.Then apply your silver again in light coats.Other alternative is to strip off the silver and start again with a primer this time.

yes i wash with soap and warm watter and clean it very well everytime before i paint it. so i guess im going to strip the whole paint off and start with primer, what do i strip the paint off with?

[MidMazar]

csc, brake fluid, purple power, alcohol, or good ol natural sanding.

[stevenoble]

How many layers of the silver have you applied? Before stripping I would lightly wet sand the whole thing back with say 1000 or 1200 and try a couple of light primer coats first.If this seals the surface and you don't get the cracking effect then you can apply the silver over the primer with no problems.If you want to strip it though I always soak the body overnight in Isopropyl Alcohol (available at most chemists) it won't harm the plastic.Some people on here use brake fluid as well.

[rsxse240]

just so you know, CSC= Castrol Super Clean. comes in large gallon jugs in the automotive section of your local walmart, or equivalent.

I'd just strip it to the bare plastic, and start from scratch with primer.

[360spider]

CSC won't touch tamiya lacquers. Brake fluid or alcohol will.

[p8ntbllr_182]

ok i guess ima just strip it off and repaint,
thanks alot for the tips guys
a mod can close this topic now