I am looking for some sheet material (as in paper, cellophane etc.) that wood glue will not stick to to use as an insulator between glue drippage on one side and something on the other side to which I don't want it glued by the excess glue.
E.g. if I am biscuit joining two long boards and using wood glue with biscuits, I need to clamp the whole thing together and if that clamp is touching the joint, the excess glue will stick the clamp as well, which I obviously don't want. So is there some material that can be used as an insulator blocking the glue coming through to the other side but also not sticking to it? Cellophane sheets of some sort (which?) come to mind because they seem very smooth, i.e. not adhesive.