After thoroughly cleaning the engravings with some solvent and a toothbrush, I put some of the of the engine paint over the engravings until I couldn’t see them. After letting it set up for a couple of hours, I used a solvent-soaked q-tip to remove most of the excess paint. I didn’t want do too much at this point since the paint is still soft.
After letting the paint cure overnight, I used more solvent-soaked q-tips to remove the rest of the excess paint. This technique works wonderfully and the engraving really pops.