.....ceramic bead insulation paint (spinoff from NASA space program) on the inside of hull and deck. Just looking back over this subject thread, and realized I never got an answer to this question?
20 Years Experience Frankie, I would like very much to pick your brain,....and/or perhaps have you speak to some of the naysayers over on this other subject: http://www.yachtforums.com/forums/frequently-asked-yacht-questions/14469-fiberglass-vs-steel-hull-they-both-claim-best.html I imagine you have seen your share of products on the market.
Chevon's Industrial Membrane I'm certainly going to keep this product in mind, considering a very high recommendation.