Dean uses analine dyes to get the colors on his bamboo-backed bows. I believe he uses a catalyzed epoxy finish over the self or bamboo-backed bows he has built. The finish is a mixed epoxy and is sprayed on, sanded, sprayed, sanded, etc and a final dusting coat with a bit of flattening paste added to the epoxy to take any glare out. Real nice and tough finish. At least, that's what he showed me.