Hi, looking for tips on how to prep a MDF plug mold in order to pull a female mold in fiberglass off the MDF plug, I realise MDF is kinda a lousy material to try to pull a mold off of but for cost reasons I'd thought I'd give it a shot.. would a few coats of automotive primer sprayed onto the mdf mold after sanding and then sanded smooth and waxed well afterwards work, .. would a thin layer of epoxy be better and maybee seal the MDF better? last time I attempted to get a good plug out of MDF I made the mistake of trying some polyurethane spray on the mold first to seal it and it seemed to make areas of the mold swell.. any tips would be appreiciated..
thanks for reading, Del:drowning: