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    Fiberglassing and Fleece question

    Ok I havent seen this anywhere so Im asking;

    I see when boxes are built they do resin and fiberglass mat in the back and bottom, but fleece on the top over the speaker rings. My question is why not do fleece on the bottom part then layer fiber over it? Wouldnt it be easier to get the initial shape by using fleece then remove it from the car and layer the fiber on it?







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    Re: Fiberglassing and Fleece question

    Because the fiberglass matting dissolves once the resin is applied, thus destroying any contours or shapes you want to create. Its soo much easier to do the shaping with fleece materials. Once the initial resin has dried on the fleece, then you can always add a few layers to the rear from the insides for more strength. Does that answer your question sufficiently?



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    Re: Fiberglassing and Fleece question

    Quote Originally Posted by AzGrower
    Because the fiberglass matting dissolves once the resin is applied, thus destroying any contours or shapes you want to create. Its soo much easier to do the shaping with fleece materials. Once the initial resin has dried on the fleece, then you can always add a few layers to the rear from the insides for more strength. Does that answer your question sufficiently?
    it dissolves??? news to me.....




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    Re: Fiberglassing and Fleece question

    Quote Originally Posted by bcarpenterfhl
    it dissolves??? news to me.....
    Well it becomes very pliable, wont keep its shape once soaked with resin. You definately can make any contours with ith without some type of support, either from foam, wood, or fleece.



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    Re: Fiberglassing and Fleece question

    ok then wouldnt that support what i was saying? You say use fleece for shaping, well that was what i said use the fleece for shaping the bottom part that everyone else just does with mat and resin. Or am i misunderstanding what your saying? Im talking about a trunk box, doing the back, bottom, sides, as well as the top piece using fleece as the first coat. Is this feasable or should i just stick to the tutorial way of doing it?




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    Re: Fiberglassing and Fleece question

    fleece is NOT as strong as fiberglass. this is why we put fiberglass on top of the fleece.

    fleece is also not as pliable (in small patches) like fiberglass, and if you do it with one big piece, it will wrinkle in the corners and stuff.

    just stick to the tape+foil+matt\weave+resin\hardener -> baffle mount -> stretch + resin\hardener -> more fiberglass + resin\hardener.

    thats a prooven way. if you wanna try to fleece the back, by all means give it a shot.

    but its a pain in the *** and it would prolly not work as well.




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    Re: Fiberglassing and Fleece question

    Its much easier to just layer on some fiberglass over the tape of what your glassing than to put fleece over it then the fiberglass. Thats a two step deal as where the proven method is only one.

    Fleece is used to get curves where there are non, like making your own shape. If your glassing the back of your box or kicks or whatever, your already have the shape and are just making a mold of it.




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    Re: Fiberglassing and Fleece question

    it's always easier to do just exactly how the pro's do..... every one else follows the best most efficient ways. its safe and lest costly to go wiht the flow of things in htis case. this subject has been arround for quite a while.... lets say you use fleece in the corner. how are oyu going to keep it stuck to the surface with out coming up in the corners or falling off once the resin is applied? the fiberglass mat sticks well to the contours and you can get allllot more strength from that then you would with fleece alone. and so oyu would want to reinforce that fleece wiht fiberglas mat any way since the fleece alone won't hold the strength requirements. so you may as well just use fiberglass mat any way. Good initiative... not bad judgement... engenuity is a good quality. but in this case. every one does it that way for a good reason. efficient, strength, and ease.



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    Re: Fiberglassing and Fleece question

    ok cool, I wasnt sure if anyone had tried it thats why I asked. I figured Fleece would be easier to do like that but good thing I asked first. How many layers should I do when installing 2 x 12" subs? Most likeley the new Pioneer Premeir SPL subs




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    Re: Fiberglassing and Fleece question

    Wow I really misunderstood your OG question.

    Anywho, about 8 layers will be good for sub enclosures, with 3/4 oz chop matting for the layering.



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    Re: Fiberglassing and Fleece question

    Quote Originally Posted by AzGrower
    Wow I really misunderstood your OG question.

    Anywho, about 8 layers will be good for sub enclosures, with 3/4 oz chop matting for the layering.
    wow you need 8layers for sub enclosures? I was only planning on doing 4 or 5 layers for my 1 12"...think I should rethink that?



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    Re: Fiberglassing and Fleece question

    Ive decided its easier to do a mdf back and fiber front because I have a wierd shape in my trunk and If i were to form to the trunk back end it would not be removeable and it would be impossible to change the struts. Now I just need my **** sub(s) so I know the dimensions of the box and amp rack.




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