I mixed artist oil paint with 2 part epoxy. It seems to work without being dissolved by the thinner. I had tried spraying with lacquer over the artist oil paint but the acetone also dissolved the oil paint. I was going to paint, then put clear thinned epoxy but the thinner was acetone. The oil over the epoxy mixed oil paint did not dissolve the paint. Not exactly what I wanted but I think it will work. I think there is still a better way but just don't know it.

So many guns, so little time!