And depending on how you use it there is a lot of difference on the strength of fiberglass. I don't mean to sound vague but there is a lot of difference in strength between shapes such as round or flat. I certainly wouldn't think I could turn it upside down and sit on it without it breaking, or if it had a covered deck that I could put a whole lot of weight on it without problems.
It's easy to add but hard to remove layers of glass. Also gelcoat won't stick to epoxy) and decide if it needed more and where it might be needed. My theory would be to make it as light as possible using a guesstimate on whether it was strong enough not to break. If I was making one, where the foam was slightly structural and probably reinforced in areas with wood or foam ribs, since I have a roll of 10oz FG cloth, I might try 2 layers of 10oz on the outside and 1 on the inside. And for that sort of build you would also need a layer inside to get the strength from composite construction, although using construction foam will limit those benefits. Then the number of layers would come into question, and technically, how many layers and where, such as 2 on the bottom and one on top with extra reinforcements here and there. If you were to make one with a shell of 3/4" styrofoam, then you would need the fiberglass for strength. One layer of light glass on that would not make it much stronger, but it would make it much more durable. This guy made one of styrofoam that was structurally sound enough that no glass was needed to be usable. before giving laminate advice.ĭepending on how you make it depends on how much glass you need. People are going to want more of an idea as to the size, shape, load and what kind of service, such as 1 person or 2, carried or rolled to water, dragged over soft mud or banged into sharp rocks etc. things will come up that might be useful.
If you "search" the various forums with 'keywords' like styrofoam or duckboat, etc. If you go down to the bottom of the page, there are 3 more layout boat threads which might help. When the boat is built would I use a gel coat or would I paint the boat? I would like it to be dark green gray or camo or I could glue camo cloth to it what would you suggest? I hope to paddle this with a double paddle. At present I favor epoxy as the best resin to use for strength and durability and perhaps someone could help with the number of layers I should apply. I do want quality as failure of materials and workmanship would be unacceptable. I can choose to use 6 sheets of Styrofoam at $180 with epoxy resins or 6 sheets of urethane foam at $300 with polyester resins. I am considering fiber glassing a Styrofoam duck layout boat for myself as a low income person and for the pleasure of building it. When the boat is built would I use a gel coat or would paint the boat? I would like it to be dark green gray or camo or I could glue camo cloth to it what would you suggest? I hope to paddle this with a double paddle. This will be used on lakes and marshes below is a picture of the project start picture that I found on line.
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