Lastly is epoxy, which is the bullet proof method and no it doesn't suffer from the things you've heard (cracking, etc.) unless it's done improperly. If this was a repair (new bottom planking for example), some insist on 5200, but this is based on an old school believe (from the 60's and 70's) that it works better than anything else, which isn't supported by testing and the facts, not to mention insurance company opinions (and their imposed rates as a result). If this was a restoration, a strong argument for a traditional method could be made, though insurance companies would prefer an augmented approuch. There's only three ways to build this hull shell, traditionally, which leaks terribly in fairly short order, a combo of traditional and flexible goo (3M-5200 or similar) which is typically a repair, not new construction and of course epoxy. My thought is that my 2 layers of 1/4" in West System will act similar to the plywood and the bottom would be good. I have seen bottoms with 1/4" plywood and 1/2" planks on top of that with 5200. looking for any insight on mixing West System layers with a 5200 final layer. Now i am thinking i want to use 3M 5200 for the 1/2" planks. My original plan was to build the bottom like the boats from Hacker Craft, 2 layers of 1/4" mahogany on opposite diagonals and an outer layer of 1/2" mahogany planks all with West System. If all goes well, i will be bolting on the chines and keel in the next few weeks and as i get closer to planking the bottom i find myself with a few questions. I wanted a big project and i think this is about as big as they come for one person. I had wood shop in high school and have stuck with it as a hobby whenever my real job allows me to have a shop set up. Hello all, this is my first post even though i have been working on the boat for almost a year now. What most say about my endeavor: Your building a what!? The project: Nelson Zimmer's 21' Palm Beachīoat building experience: none, this is my first build
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