No, I just cut and sew, but when it's finished, I always wash it with a color catcher, and so far there has been very little bleeding. My SIL made her first quilt which was black/white and Red. The black and white were Moda squares, the red was off the bolt and I was afraid some of the red would bleed, so we used the color catcher and it did pick up bleeding red, but not on the quilt. I love those.