I have turned a bunch (18) of black walnut bowls. After drying and doing second turning, I attempted to level out a natural bark edge with epoxy. (First time trying this.) I put black duct tape on inside and blue painters tape on outside top edges (as little dams) and mixed and poured epoxy in. Long story short, the epoxy found its way inside the tapes, both inside and out and all drained down to outside and inside of bowl. I thought I had the tape stuck pretty good, obviously I was wrong. Really screwed up one bowl. Anybody have any idea if there is a better tape to use or should I just abandon the idea of trying to fix the top rims. Tx. Randy