You might have to do a little experimenting to test that the material you use is inert. Epoxy curing can be upset by some plastics (including the binder in wood products), as any fumes or residual monomer given off can interfere with the curing and leave the surface sticky. In extreme cases the fumes can penetrate quite deeply and the result will be very unsatisfactory. The reason I suggested laminating film and silicone, which I use for both polyester, which is very aggressive, and epoxy, which can be sensitive --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .