Newbie Box Builder
Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=54942
Printed Date: May 28, 2024 at 6:29 PM
Topic: Newbie Box Builder
Posted By: Fifty_81
Subject: Newbie Box Builder
Date Posted: May 01, 2005 at 9:35 PM
Hey guys I'm in the process of building a fiberglass enclouser. I've already resined the fleece and have one layer of fiberglass cloth on is. My question though is this....
I've gotten some rippling out of the cloth. I sanded it down and was wondering if I fill it with Kitty Hair or Bondo Hair (the fiberglass stuff thats mixed with cloth strains) will that be okay? Also could you just apply that stuff over all of the fiberglass enclouser and build it that way or is that stuff not strong enough?
Replies:
Posted By: 95Pony
Date Posted: May 01, 2005 at 9:44 PM
Well, if you are making door panels or just some kind of structure, the Bondo with the fiberglass in it would be fine. But if you are making a sub enclosure it wouldnt be strong enough because of the intense pressure. If you put in some high power subs it would probably blow it apart. Lay that stuff AFTER you have your layers down. I am making a sub enclosure and so far have to full layers Heres a picture of it with ONLY resined fleece. 
Posted By: 95Pony
Date Posted: May 01, 2005 at 9:46 PM
Woah that got squashed. looks funny because i tried to make it smaller. Try again.
Posted By: Fifty_81
Date Posted: May 01, 2005 at 11:32 PM
No no, this isn't Bondo Body Filler, it Kitty Hair or Bondo Hair so fiberglass resin with fiberglass cloth strands in it. Differnet product all together.
Posted By: 95Pony
Date Posted: May 01, 2005 at 11:39 PM
Yeah, I know. All it is is bondo filler with fiberglass strands in it im pretty sure. Not trying to contradict you or anything I just dont think that wood have anywhere NEAR the strength of polyester resin and mat.
Posted By: 95Pony
Date Posted: May 01, 2005 at 11:39 PM
Yeah, I know. All it is is bondo filler with fiberglass strands in it im pretty sure. Not trying to contradict you or anything I just dont think that would have anywhere NEAR the strength of polyester resin and mat.
Posted By: auex
Date Posted: May 02, 2005 at 1:24 AM
You still need to put a couple layers of fiberglass mat down. Fillers are for finishing a box and should be used sparingly. They are a weak point in the finish. If you have a larger deeper area then use kitty hair or like product. If you are working on high and low spots (1/4 inch up or down) then go with bondo or like body filler.
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Posted By: boricuaso
Date Posted: May 02, 2005 at 6:34 PM
dont use bondo to fill any inperfections in between layers of fiberglass. if you have too much of a low spot, brush on some resin till you get it level, then continue adding layers of glass, use bondo only as finishing agent, to smoth the surface down.
Posted By: bikeboard15
Date Posted: May 03, 2005 at 8:36 PM
i think everyone's misunderstanding you. You want to use resin, but instead of using chopmat or weave, you want to use loose strands of fiberglass, that way it will fill better. That should work, just make sure that you put some more layers of chopmat or weave over it. Fiberglass is what gives strength, not resin.
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