Q: I recently found an old glass window and would like to
paint a scene on it using acrylic paint. Is there a base that I should
apply first? I tried a sample and it didn't cover well. Do I have to
paint it twice?
A: Glass invites light, and therefore
requires layers of paint for complete coverage. By just adding white or
cadmium colors to your paint you will get better coverage. There are,
however, many acrylic “craft” paints that are designed specifically for
painting on glass, ceramic, metal, and other non-canvas surfaces. Most
of these paints are opaque and opaque paint covers better than
transparent paint. Be sure to read the labels, as some paints are as
transparent as fine-art acrylics and will need additional layers for
better coverage.
--by Camille LaPointe-Lyons