I helped a friend do an art quilt using dupioni, and we used fusible interfacing on the back. We used a light weight Pellon and fused it to the back. It really helped control the fraying and it gave a different feel to the silk. Her quilt turned out beautifully. When we ran into a little problem spot, we tried to use a little Fray Check, but it left a stain on the dupioni. So we abandoned that idea.