Post #201117 by SilverLine on Thu, Dec 1, 2005 5:37 PM

This method sounds very similar to early (current?) fiberglass boat making. It all starts with a wooden plug from which the mold is made. The plug is waxed and resin soaked fiberglass is laid over it. The molds were good for about 50-100 boats before a new mold had to be made. Would fiberglass be sturdy enough to serve as a concrete form? Maybe the old boat-making procedure would be cheaper?