Hi guys, I have been reading the comments about polyester resin.
Just a thought, what about surfboards they have been around for 40 years. They are made from a block of foam then cut in half & a thin wood stringer is glued in the middle. Then the shaper shapes the board, then it is glassed with 1 or 2 layers of glass using polyester resin . Have you seen any of the surf contests, especially in Hawaii with the big waves & I mean big. These guys get out there & then try & ride the wave. The point I am making, they have been around for a long time, the stress that get from surfing, they sit on top of vehicles in all weathers, from hot sun to snow. The only time the glass lets go from the foam plug is when they get dinged, dropped on rocks etc I have seen a few boards break in half, you ask the guy what happened, he was on a wave about 20 ft high then got flung off & the bard hit the bottom. I think this would be a good example to say that polyester resin hangs on. I would think the stress the surfboad gets would be similar to an aircraft. Anyone else have any comments. Robin New Zealand.