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Thread: First Fiberglass Project....have questions...

  1. #1
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    First Fiberglass Project....have questions...

    Well,

    I made the form for my sub box. Everything went fine.

    Now I am building it up and finding that I am getting several air bubbles. Should I just leave them. They do NOT flex at all and are very solid, but you can tell it is a bubble.
    I don't care if it looks ugly as I am going to carpet it.

    Another question is this..... I have done 5 layers already. The box only flexes on the ends where it is thinner (the ends that I will be cutting off)
    I have stood on it and it has not given in at all.

    How many layers is enough? It is going to house a 10" sub.

    Thanks for the advice.
    The future is not set. There is no fate but the one we make......S.C.

  2. #2
    FLAC Pudge's Avatar
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    I did this as my first project as well. I'm finding out that because of the air bubbles, the back leaks a bit. Before you get too much farther, fill the thing up with water (make sure everything is completely set) and fill holes. I'd say 5-6 back layers should be fine. I think i had like 7 or something, and hey I'm pudge and it didn't flex.
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  3. #3
    Maximum Bitrate fantomas's Avatar
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    the air bubbles will make the enclosure more weak. if its just a single sub you might be ok..but if you have any leftover fiberglass resin you might as well use it...
    rebuilding carpc... kinda..

  4. #4
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    yeah what pudge said about the leaking... also for future reference, smaller pieces of fiberglass matt help to reduce air bubbles. Those huge pieces you (or me at least...) use cause we're lazy are what get the air bubbles usually.

    Oh and I'd say 6 layers.. 5 is probably enough, but just do 6.

    good luck.

  5. #5
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    Quote Originally Posted by Pudge
    I did this as my first project as well. I'm finding out that because of the air bubbles, the back leaks a bit. Before you get too much farther, fill the thing up with water (make sure everything is completely set) and fill holes. I'd say 5-6 back layers should be fine. I think i had like 7 or something, and hey I'm pudge and it didn't flex.
    So let me make sure I understand this.....fill the thing with water and see if any leaks out?

    If yes....full in the holes obviously. If not...then I am ok?

    I was thinking of doing another layer, which would make 6, then after it dries, drilling a small hole into the air bubbles and pouring resin (obviously mixed with hardener) into the pockets....that would fill them up.

    Is that overkill?

    Thanks for the prompt responses.
    The future is not set. There is no fate but the one we make......S.C.

  6. #6
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    Quote Originally Posted by wizawuza
    yeah what pudge said about the leaking... also for future reference, smaller pieces of fiberglass matt help to reduce air bubbles. Those huge pieces you (or me at least...) use cause we're lazy are what get the air bubbles usually.

    Oh and I'd say 6 layers.. 5 is probably enough, but just do 6.

    good luck.
    Yeah I realized that about the bigger pieces.......
    The future is not set. There is no fate but the one we make......S.C.

  7. #7
    FLAC Pudge's Avatar
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    Probably not overkill, go ahead and get your 6th layer on there before you test.
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  8. #8
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    Quote Originally Posted by Pudge
    Probably not overkill, go ahead and get your 6th layer on there before you test.
    Ok...sounds good. I will keep you posted.

    Thanks
    The future is not set. There is no fate but the one we make......S.C.

  9. #9
    Constant Bitrate JaxPt's Avatar
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  10. #10
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    Quote Originally Posted by JaxPt

    That is what I have been using
    The future is not set. There is no fate but the one we make......S.C.

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