I’m finally finishing the Kerr Stuart but I’ve hit a problem.
When I spray varnish onto the loco body the top coats of black paint seem to be disappearing to reveal the grey primer!
Anyone know what’s causing this and how to solve it?
Some information that may help you diagnose the problem. The body is from Shapeways, printed as Frosted Ultra Detail. I washed the body with a small amount of dilute detergent and rinsed it well. Spray painted undercoat (Humbrol acrylic primer), top coat of Humbrol Dirty Black acrylic (3 or 4 coats). Everything was looking good until I sprayed on two coats of varnish (Humbrol Matt for Acrylic) and then this happened.
Has anyone else seen this before and know how to solve the problem? All help much appreciated.