Don Stauffer
What will you be using it for? If you have an airbrush and dial the paint flow way back, you can get a translucent gray. I do that a lot for weathering.
Revell's Corvette C7.R head lightcover.
After a couple of crazy days at work, I got to experiment using your suggestion. A thinned down Testor's enamel black metallic looks spot on. It looks like a medium to dark shinny translucent grey.
Thanks