About five years ago I had the transom on my 23' CC redone due to rot in the plywood core. The shop used a fiberglass composit like material that was light in weight, green in color, sold in 4X8' sheets and was, I think, about 1 1/2" thick. This was used instead of the usual plywood core. Great stuff and will never have to worry about transom rot.<br /><br />Anyone know what it is called or where to get it?