Hello,I have done a few silicone molds out of 3d printed part, however my next (well it is current) is making a mold out of cnc cut piece of plywood.So far I have sanded the piece up to 400 grid sanding paper using orbital sander. For coating however I don't know what to do as I haven't worked much with wood.In my garage I have PVA glue (it is soluble in water, but once dried is it still soluble?), I have wood varnish, however I do not know how suitable is that either.My aim is to make the wood piece impermeable, come off the mold and be reused.Do you guys thing the above two options are viable? If not what are your recommendations?Regards,Tsvetan via /r/DIY http://bit.ly/2GF0FnI
