Boat Building Forum

Find advice on all aspects of building your own kayak, canoe or any lightweight boats

S&G: 90 degree corners

I am starting to build a three section S&G take-a-part kayak. Where the sections separate (double bulkheads), I would like to have 90 degree edges to minimize any disruption of water flow down the hull.
I have wrapped light fiberglass cloth around an eighth inch curve but with difficulty to keep out air pockets. I am wondering how to get full water proof fiberglass edges to protect the wood on my sections without any air under the glass.
Any ideas will be appreciated.