Hi! I usually use craftsmart paints to paint my clay, I usually put on several thin layers until I get just the right color. For rafts art, however, some colors are not as pigmented as others, so for some you can put 2 coats and be done with it, but for others you will have to put as many as 6 coats. I only paint my lay, I never buy colors, since it's cheaper, and you also don't see any dust or fingerprints in the end(: