I'm starting to use mixes of Tamiya acrylic paint for airbrushing. What went wrong here? The surface: styrene spoon wetsanded with 400 then sprayed with white Tamiya Fine Surface Primer (L). The mix: Tamiya water clean-up acrylic in bottles 1 part X-13 (medium-dark metallic blue) 3 parts X-11 (chrome silver) 1 part X-22 (clear gloss) X-20A thinner (eyeball ratio to dilute for airbrushing) The spray: Iwata Eclipse at 20 psi For comparison, there is a spoon test of gloss black at the left of the photo shot under the same conditions. It's Model Master 1747 diluted with Testors Airbrush Thinner. The Tamiya makes a nice satin finish but I want it to be 1961-era glossy on an engine and frame. I could clear coat it but I'd rather figure out how to make the mix glossy.