Fiberglass box questions -always wanted to know.. - Audio & Electronics Forum

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Fiberglass box questions -always wanted to know..
Sunday, June 26, 2005 5:36 PM
ok will fiberglass boxes how do they do it... ok fiberglass outer but whats underneith? Is it just a wodden ring fiberglassed in to screw the sub into? or is the sub sitting in an actual box thats fiberglassed around? If there no box inside the fiberglass how thick is the fiberglass to actually hold the weigth of a sub and the pressure made by the sub/subs? I know the fiberglass has to have somethign that gives it its shape or whatever shilw it dries... do they cut the shape out of foam and mold over it or soemthing?

The reason for all the questions is at Import Wares today there was a Magnum with a fiberglass enclosure that went from inside the hatch area all the way through taking up all of the back seat area and almost up to the back of the front seats, it was somethign like 12-14 12" subs and I'm sitting ther elooking at this box just like holy @!#$... how did they do that? it was not flat, it was wavy and curvy and completely symetrical from left to right and just freakin enormus




Re: Fiberglass box questions -always wanted to kno
Sunday, June 26, 2005 5:43 PM
Well, the sub ring is fiberglassed into the box. There is no more MDF than just the ring that the sub mounts to. I did a how-to for my local forum here. It'll show you, with pics, how I built the box to fit in the corner of my trunk.



I may not know much about cars, but I know two things....
1) Breaking things is expensive, and
2) Horsepower isn't cheap.
Re: Fiberglass box questions -always wanted to kno
Sunday, June 26, 2005 5:58 PM
you do use mdf for the flat parts.

basically you make a wooden skeleton or frame...and wrap it with grill cloth. stapled down and what not gives you your basic curves. then you apply your resin and mat...smooth it out with body filler and sand it smooth.


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Offical dealer for the following-

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Re: Fiberglass box questions -always wanted to kno
Sunday, June 26, 2005 6:16 PM
if you go to alpine's website..you can see how it's done


--------------------------------------------------------------
Offical dealer for the following-

SOUNDSTREAM
DB LINK
DB DRIVE
PANASONIC
GARMIN
ROSEN
SCOSCHE
XE DESIGNS
SOUNDGATE
PAC
LITEGLOW

Re: Fiberglass box questions -always wanted to kno
Sunday, June 26, 2005 6:24 PM
yeah basically u can put foil down then resin to get a contour mold then as said before yoe cut dowel rods to hold the mdf and give it its shape then u staple cloth to it and put ur resin, hardener, and FG on the body fill sand and paint it



Re: Fiberglass box questions -always wanted to kno
Monday, June 27, 2005 8:53 AM
One guy I know did his with an L7 and used 6 or 7 layers I believe, turned out amazing. Just have to use mdf on the flat parts is easiest.



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Re: Fiberglass box questions -always wanted to kno
Monday, June 27, 2005 7:53 PM
hey guys, ive started a massive venture into my VS boot, and rest of car wid fiberglass, well here goes,

Its a massive job, which has allready taken me 5 months to get no closer to finishing!, well all u use is MDF on flat spots, and Chicken mesh to mould other concave parts of the install, well mine is fiberglassed into the car, pretty sik once finished, but long way off yet!

katch
Re: Fiberglass box questions -always wanted to kno
Tuesday, June 28, 2005 2:28 PM
not a fan of chicken wire at all.myself you cant get perfect shapes from it, youlle spend allot of time adding fiberglass and filler. best method ive found is just building the framework out of wood and stretching fleece or any stretchable fabric over the pice, use allot less fiberglass/filler that way.


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Re: Fiberglass box questions -always wanted to kno
Tuesday, June 28, 2005 9:53 PM
thanks for the input guys



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