Last week I posted about a coin that I laser engraved and enhanced with some paint, but did not post step by step instructions. With a recent project for Midnight Research Labs, I had a chance to take some more pictures.
I engraved the coin in the regular way and then painted over the whole sheet with a standard acrylic spray-paint.
After the paint dried over night I used a random-orbital sander to sand off the excess paint. I also sanded the back sides of the coin so the back finish matches the front matte.
Here is the coin after cleaning, as you can see the paint stays in the engraved areas very well.
The small square token is a QR-code encoded with a secret message, I included it to use up some of the extra space, as well as test the resolution of the engraving.