I’ve infused a few rudders and foils for boats, yes have done one fin as well!
I use a split mound injecting along the tab end and vacuum line at pointed tip. Glosscoat (gelcoat) went in first and allowed to kick. Then reinforcement and core material. Close it all up and ready to go. Inevitable a bit of sanding required to remove flashline.
Fiddley stuff but it works. I plan on doing several at once if I ever get around to building the moulds!
Im starting doing fins for some friends in plywood and layup hand foiling, the result is nice but I have expend a lot of time doing a couple of twin fins!!!
I´m curious to know if it possible to do lay up with any core material onto a mold??? or just vaccum bagging? can you give me some hints, I know that is a professional secret, anyway, im trying to do this as well for a small bussiness here in Portugal!
well, cheers e obrigado
e de qualquer forma, muito bom trabalho, parabens!!!