Has anyone thought of doing a pre-preg suncure? My company uses Cytec Fiberite as a phenolic(fireproof resin). Clean, pre-saturated cloth with almost perfect glass to resin % Just a thought.
Has anyone thought of doing a pre-preg suncure? My company uses Cytec > Fiberite as a phenolic(fireproof resin). Clean, pre-saturated cloth with > almost perfect glass to resin % Just a thought. Pre-pregs require an autoclave cure and vacuum bagging. I worked for a composites manufacturing company and considered this option but I was unsure how clark foam would react under the heat and pressure of an autoclave. It just seemed to get too complicated
Pre-pregs require an autoclave cure and vacuum bagging. I worked for a > composites manufacturing company and considered this option but I was > unsure how clark foam would react under the heat and pressure of an > autoclave.>>> It just seemed to get too complicated I didn’t think an autoclave would be needed with suncure. As far as vacuum bagging…it seems you can hand lay it up w/out it? If it did need to be vacuum bagged I wonder how to get a cure through the breather cloth and perf?
Haven’t tried it myself. It would seem that with conventional lay ups, a certain volume of resin is absorbed into the surface of the foam that creates a good bond. What I’ve seen with pre-preg makes me wonder if there is enough resin to bond to something as porous as foam.
Haven’t tried it myself. It would seem that with conventional lay ups, a > certain volume of resin is absorbed into the surface of the foam that > creates a good bond. What I’ve seen with pre-preg makes me wonder if there > is enough resin to bond to something as porous as foam. We looked at pre pregs for a while at AST and it’s a fascinating technique/process. Vacuum bagging the application is a must in order to get the glass to wrap around the rails. The adhesion to the foam is an issue that can be adjusted by how the pre preg resin is activated. Heat / light are both fine methods to activate the system, though making sure it turns into liquid before it gels is a complication. With the negative pressure in the system everything is forced together. The chemistry involved in vacuum bagging is not as important as normal laminations because it is a forced system (everything is squished together regardless if it would do it on it’s own). I am under the impression the guys at Patagonia have more knowledge on this and I’m 99% sure that vacuum bagging is used on the epoxy serf-tec boards. Ultimately the question we have asked concerning vacuum bagging is how cost effective is it? Can factories easily be switched into that type of production? Is their any real strength in construction advantages? Does it save any steps in over all time or labor? Will the product going into the hot coat stage be properly prepped? I have yet to see the overall advantages in vacuum bagging though I haven’t spent that much time trying to make it work. If any one has more info on the efficiency of the method I’d love to know. Thanks Mark Tolan