> Hello,
>
> I try to paint my scale car with Tamiya black after spraying with Tamiya
> primer. After the first thin coat the second thick coat of paint looks very
> smooth but after a few minutes craters begin to rise on the whole car!!??. I
> always rinse the model in water with some soap before painting so it can't
> be pollution that causes it.
>
> After sanding the craters away I tried it again ending with the same result. >
> Does this sound familiar to anyone?
It's only the paint surface. I sprayed it from a can and the plastic was cold. It was also dry. I don't use a drying booth. I let it dry for 10 minutes before spraying the second coat. I put the can in hot water for 10 minutes before spraying. At the second attempt I used a cold can. No difference.
With craters I mean a sort of tiny cracks all over the body with rising edges....
Teun
Did you use a primer coat? If so, what kind?
A quick google search found this.
Sounds familiar? "Pin-Holing - Tiny round breaks in a paint film giving the appearance of a pinhole. Caused by rapid solvent loss. They may or may not have raised edges." That's how "Testors' Understanding paint" describes it. This is very helpful reading found at testors.com. Pavlos
Cracks are usually cased by the first coat drying at a different rate than the second coat. I always shoot the model warm and if using a spray can, let it soak in a pan of hot water for 20 minutes and be sure to shake it VERY well, usually hearing a rattle inside the can. Sam
I used Tamiya Primer White.
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