Dave,
The secret is this...Spray the the whole front of the
emblem with Krylon spray paint. Let it dry to the touch then wipe the emblem with a thinner rag. The rag should just be damp and not saturated. I did some of these once and I took and hung the thinner rag up tight with bungies and kept it damp. Then I wiped the emblem across it until the thinner removes the top surface of Krylon.
Hersh