The Saran wrap work very well, leaves an absolutely baby bottom smooth surface and allows you to feather out the edges by carefully smoothing them out with your fingers while the epoxy is still smooth and flowing. Let the layup cure completely (over night at least) before removing the Saran wrap and it will come off very easily. I do not know if other clear food wraps will work as well as Saran or not, I hear some do not release as well as Saran does after the epoxy cures.