fiberglass oz?
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=53730
Printed Date: May 12, 2025 at 3:17 AM
Topic: fiberglass oz?
Posted By: lilbenny
Subject: fiberglass oz?
Date Posted: April 11, 2005 at 7:34 PM
hey im looking to purchase a wholesale of fiberglas...
what oz size is the best for mat and cloth.. im only using these for sub boxes... also the packs you buy at home depot and ect... does anyone know how many oz that is?
Replies:
Posted By: Rick_h
Date Posted: April 11, 2005 at 8:48 PM
Not real clear on your question. You can buy it by the gallon at the Body Shop Supply house.
Now getting it wholesale depends on fast of a talker you are!
Rick H...
Posted By: Rick_h
Date Posted: April 11, 2005 at 8:49 PM
Ok now I see weight of mat....
1.5 oz rings a bell but I could be wrong.
Rick H...
Posted By: Dyson
Date Posted: April 12, 2005 at 5:39 AM
most fibreglass walls need approx 6oz chopmat, so if you are using 1.5oz you need 4 layers, if you are using 2oz you need 3 layers. No prizes for guessing how much you need with 6oz chopmat! 
Posted By: lilbenny
Date Posted: April 13, 2005 at 12:32 AM
thanks alot! so im guessing since many buy the fiberglass at a homedepot and tell us to use 6-7 layers those they sell are 1oz?
Posted By: Dyson
Date Posted: April 13, 2005 at 4:02 AM
Posted By: lilbenny
Date Posted: April 13, 2005 at 6:46 PM
lol what about this? its 24oz... lol so like 1/4 of that layer? lol would this work?
https://cgi.ebay.com/ebaymotors/dll?ViewItem&category=26451&item=4542417908&rd=1
Posted By: oonikfraleyoo
Date Posted: April 13, 2005 at 9:23 PM
Yes it would be ok. It's a lot harder to work with though. Your box could also double as body armor if needed. Stick with 1-3oz. MUCH easier to work with. ------------- Nik
Jeeputer Progress
[|||||||||||-] 90%
Check it out.
Posted By: Alpine Guy
Date Posted: April 13, 2005 at 10:13 PM
If you used 2 oz weave and do 3 layers you get a big flexy problem. I think it more depends on thickness rathar than weight. Im also not a pro fiberglasser yet tho.
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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: ncrxsi
Date Posted: April 14, 2005 at 11:15 AM
Alpine Guy wrote:
If you used 2 oz weave and do 3 layers you get a big flexy problem. I think it more depends on thickness rathar than weight. Im also not a pro fiberglasser yet tho.
The weight of the matt gives you an idea of how many layers will be needed to reach an acceptable thickness. So the weight of the matt is relative in terms of thickness. ------------- Dean
Posted By: Markland556
Date Posted: April 23, 2005 at 1:44 AM
lol, thats the mat i bought and this stuff is seriously tough after just 1 layer. LOL, i smacked my friend over the head with a piece i cut off and it diddnt even bend.
Posted By: lilbenny
Date Posted: April 27, 2005 at 5:34 PM
hey im really in need of a whole sale of FG so i can be my project moving agian....
https://cgi.ebay.com/ebaymotors/dll?ViewItem&rd=1&item=4546119958&category=26451
would this be good? its 1.3 oz... if not can someone direct me to a place where i can get wholesale FG cheap? also anyone know that site that sells the high quality resin... its like 22 and its like fresh (resin expires... just found that out lol) if so any help would be appriciated thanks!!
Posted By: abovestock
Date Posted: June 13, 2005 at 3:04 AM
I love to use Uscomposites.com, my advice is to stick with 2 oz. CHOP STRAND MAT. I do not like anything woven for box building. The mat seems much stronger and does not need to be set a certain way. As for resin 435 standard layup polyester resin is awesome at $21.50 a gallon it can't be beat. good luck
Posted By: playr747
Date Posted: June 14, 2005 at 8:20 AM
1.5 OZ mat is good for enclosures just do 4-5 layers depending on strength needed
Posted By: abovestock
Date Posted: June 15, 2005 at 12:55 AM
2-3 ounce is cool for fast build up, 1.5 for curves, 3/4 for any detail or 90 degree curves
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