Please correct me if you have experienced different +++++++++++++++
Stand corrected - very effective peel ply (synthetic material) is available from the drapery store at a fraction the cost and I doubt that any release agent is involved. I wish I could be more specific, but my wife found it and she is not sure what the technical name is. She did mention dress lining and other similar things. I got two 80m rolls while the going was good so it has been a while. It resembles a 3 ounce regular weave cloth, but acts like a synthetic (nylon?) when exposed to a flame. (Black smoke an makes a little black ball) I have even has success with an "ester" resin. Steve J