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Thread: Making a monofin

  1. #1

    Making a monofin

    Hi, new to the hobby and want to make a monofin. I have a pair of swimfins I want to turn into monofin but need advice. Im going for more of a dolphin shaped fin rather than fish. But to accomplish that i would need to pad it out a bit. I have the fins for propulsion but what material would be good for a more 3d dolphin fin shape? I have eva foam on hand as well as a few foam pool toys. Would that work or should i find something else?

  2. #2
    Foam like that it's going to be way too floaty to use as a monofin. A lot of times what people end up doing with swimfins is just using the foot pocket, and making a new monofin blade with lexan.

    Serious Sirenetics

  3. #3
    Senior Member Pod of Cali Merman Storm's Avatar
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    Jan 2016
    Simi Valley, CA
    To give it an airfoil shape, your only real options are to make a mold and cast it in polyurethane or silicone. I would go with silicone as that will lead to making full tails.

    As for the airfoil shape, I recommend the S8025.
    Last edited by Merman Storm; 04-27-2021 at 04:00 PM.
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