3 layers? Of cloth? It’s only 2.5 oz. if I don’t want to make a bunch of spars and bulkheads I think foam core is my only way. I’m doing 2layer laminate with some focused reinforcement layers, but it’s mostly a 2 layer build up. It’s thin...no composite, as in 2.5oz, some foam sheet, another 2.5. That would give me enough strength probably but getting something like divinycell would move me straight onto vacuum bagging and I’m neither experienced enough or rich enough to buy the equipment right off. Unless of course you meant something else, which in that case ignore all
if There is something I’m doing wrong and 2layers of 2.5 should be that stiff I’d like to know. I’m using minimal resin just enough to wet it out, and I’m keeping the mold and everything super hot so it flows really easily.
Im using a slow cure epoxy mix. I need all the time I can get doing a wet layup and keeping everything as warm as I am.