Fiberglass a Jet Pack

  1. #1
    ACSS2's Avatar
    Member Since
    Mar 2004
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    Kansas
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    Fiberglass a Jet Pack

    I have made a jet pack out of foam and cardboard and was wondering if there is a way I can use it as a mold to make one out of fiberglass?

  2. #2

    Re: Fiberglass a Jet Pack

    Something that size would be a nightmare, why not layer straight over it.

  3. #3
    ACSS2's Avatar
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    Re: Fiberglass a Jet Pack

    Is there something else I could use?

  4. #4
    fettcicle's Avatar
    Member Since
    Mar 2002
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    Chicago
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    Re: Fiberglass a Jet Pack

    Fiberglass isn't kind to foam. The acetone in the resin usually eats foam, plus, it would make the cardboard soft and warp it.... You could try to make it entirely out of foam and seal the whole thing with a layer of bondo.

  5. #5

    Re: Fiberglass a Jet Pack

    You could also seal it with with "podgy"? It is a thick white glue that dries clear. It is used for sealing in collages or those 3 D pictures that crafters like to make. I'm pretty sure you can paint acrylic paint over top of it.

  6. #6

    Re: Fiberglass a Jet Pack

    The other name for that stuff is HOdge Podge I believe.. sealing paper to wood etc..

  7. #7

    Member Since
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    Re: Fiberglass a Jet Pack

    You can try this stuff instead

    styrospray you can get it from : http://www.industrialpolymers.com/
    I have used it before, it will create a hard shell over your model, it will not eat foam, or cardboard, and is less toxic to work with then fiberglass, although pretty sticky stuff. I don't think it is not as strong as fiberglass (no fibers in it), although people use it for outdoor sculptures so it is pretty tuff.

    you can spray or brush it on. It is self leveling so you get a pretty smooth surface. I had better luck after brushing it on the rotating the object to ensure a smooth, drip free surface. If you get drips, that is what sand paper is for.

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