A lot of people in the laser engraving community swear by airbrushes for perfect coatings. Others say it’s overkill. So I decided to find out. In this hands-on test, I use an airbrush to apply tempera paint on glass before engraving it with my xTool S1. I’ll show you every step, from setup and mixing to spraying, engraving, and cleaning ...and reveal if the finish actually improves. If you’re tired of streaks or uneven coatings on glass, this one’s for you.