Re: seacast transom
I looked into plywood and Nida-core materials and decided on Nida-Core pourable. I had a gallon sent and did some lamination testing and strength testing and found it to be fine for what I'm using is for in my transom with a 250 and 30" shaft. The function the core is to separate the outer skins and keep them bonded. Your strength is in the inner/outer fiberglass skins, not the core. Think of a balsa cored boat - how much strength is balsa adding???
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