I'm in a composites manufacturing class, and I'm looking to make a one-off carbon fiber mountain biking handlebar from prepreg.
As I don't want to invest in the metal needed to make a proper mold, I'm experimenting with using quarter-sawn oak to hopefully prevent too much warping with the heat. I need to glue some of the boards together to get a thick enough mold, and the mold has to be able withstand roughly 300 F curing temperature for the carbon fiber.
Would a high temp silicone gasket work?
Would it be able to withstand the temperature as well as roughly 50-100 psi of internal force from the bladder without separating?