SPsystems have a new(ish) process for composites. Check link below. Would it be applicable to surfboard? Looks like less time spent laying up and sanding + less waste and stronger glass job - but you need to vacumm bag and heat cure. http://www.spsystems.com/prod-sprintprod.htm
And you guys complain about the cost of polyester and wet room temp epoxy.
Looks like a great system for structures that do not bond to foam substrates. Foam core composite laminates require an excess amount of wet out for foam saturation. However, if the prepreg needs to be refrigerated prior to use the resulting condensation during the cure often compromises the integrity of most prepreg systems. There is a boat builder in Australia that is producing his own prepreg on site. It’s called BoatSpeed Systems. Here’s a short excert from the Mad for Sailing Website: Impregnated carbon can come out of the machine ready for immediate lamination. “We have two days working time and we can put the stuff in the fridge for three weeks, but as soon as you do that - and that is a problem with proprietary pre-pregs - you put it in a fridge and cool it down, take it out - it gains humidity and you get dew on it,” says Peter Ullrich, adding that this is the prime cause of skins blowing off Nomex as the laminate is cured (as experienced by Peter Goss’ Team Philips).
Many companies in the boating industry are now using impregating machines that use room temp cure epoxies that correctly impregnate fabric on the spot. This is finding more and more acceptance because of exactly the issues Tom brought up about changing temperatures.