Hello Guys
i used got useful info here.
I produce paddle for my friends with carbon bent shaft. For bent shaft I have 2 parts composites mould and I use wet hand lay up lamination and straight silicon tube which I buy from Essentrea components.
My process is - 1. carbon 200 plain to each half of mould. 2. UD 300 carbon 3. silicone tube with carbon kevlar sleeve. Clouse the mould with silicon tube with carbon kevlar sleeve than I clamb one end and another end I have valve to put air inside with 2 bar presure.I think is enought.
I have problem that when the shaft is cured and ready to [quote][/quote]open the mould. I can see in curve (the place where the shaft is bent) kvelar carbon sleeve in surface. It dosn’t look profesional and I have problem with water leaking inside the shaft. I don’t know If should used different silicon tube which is already shaped - bent, because the straight silicon tube with air inside tend to go straigt in mould and press the kevlar carbon sleeve in curve of tube. What do think ?
I try to attach some picture to image what i am tooking about.
If you make your outer layers stick past the edge of the mold on opposite sides it would help with the kevlar showing. When you put the mold together you have then mold halfs offset so the overlapping pieces are inside the cavity then shift the molds to be lined up. If you do a search for bladder molding here you should find some good posts showing pictures or videos in more detail