OK, I've finally took the time to read everything on the Mascoat website and kinda understand how it can reflect heat. But no mention of reflecting cold. Plus, the crappy wallpaper in my house had nearly a -10db effect until I removed it to find even crappier walls. 3 coats of midgrade paint gave at least -3db back. In another room, a hand mudded texture coat with paint removed all echoes period. I guess what I'm seeing is an expensive way to do common things without having the ability to keep my boat warmer from the cold of the water. Judging by the brat map, most of us have issues with the cold. I would imagine that it could reflect heat back inside the boat but, an ounce of heat in an ocean of cold will always loose. I've read the happy posts with it's benifits and can't speak for what they have witnessed. But, I also think of my boss who travels to Mexico constantly and tells me how its's the best place in the world, how its decreped streets and dirt floor restaurants are so cool, how may times he's seen and had to pay off the Federales with the machine guns, how little kids will snap an instant picture of him and say "I need 10 dollars for this picture or my papa will beat me", how many times he's returned home with Montezuma's revenge, how you're safe as long as you don't leave the resort compound, and take only the shuttle bus straight from the compound to the airport, how you can walk the streets of the local town as long as it's light out and you stay away from the major highways, and someday he's going to retire there. Seriously, all of this in the same story. It's like vacationing in Detroit in August. The point is, I'm not impressesd at that price. If the 2,3,or 4 coats had the final cost of coverage like a $30.00 a gallon paint, I'd be interested. Please don't think I'm causing trouble but, sometimes I feel that the emperor doesn't doesn't have any clothes. However, on the lighter side of truly space-age insulation, read up on this link about Aerogel.
http://en.wikipedia.org/wiki/Aerogel I saw a hands on demonstration of this some time back. It is utterly mindblowingly amazing and uber-expensive.