Is 3 layers of glass good ?
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=39170
Printed Date: May 03, 2024 at 12:29 PM
Topic: Is 3 layers of glass good ?
Posted By: bndallas
Subject: Is 3 layers of glass good ?
Date Posted: September 15, 2004 at 1:30 AM
I'm doing my first fiberglass box and I was wondering if 3 layers of fiberglass is good enough for 2 8" rockford fosgates?
Replies:
Posted By: Project GT
Date Posted: September 15, 2004 at 1:49 AM
should be, alot of people use the rule of if it's strong enough to stand on it, and slightly bounce a little, and doesn't flex or anything it's strong enough
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Posted By: leftyrev
Date Posted: September 15, 2004 at 7:13 AM
3 layers of what weight fibreglass ? the thicker the fibreglass the less layers you have to put on .
Posted By: HottAccord
Date Posted: September 15, 2004 at 10:44 AM
Yeah don't be cheap like me haha. Im pretty sure you're using 1.5 oz mat (common). If so, I think anywhere from 4-6 layers is good, you dont have to go crazy cause theyre probably wont be too much flex since you will have the tire well behing is as reinforcement around and behind it.
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Im a fiberglass whore!!
Posted By: HottAccord
Date Posted: September 15, 2004 at 10:46 AM
Oops I may have mixed this post with another...there's no mention of using a tirewell in this post haha Anyway, stand alone box, 5 layers wouldnt hurt but since youre using 8 inch subs, 4 should be fine. Good luck! ------------- Im a fiberglass whore!!
Posted By: xtreamcc
Date Posted: September 15, 2004 at 10:47 AM
I've used as little as 3 layers for a single 10, it's not recomended but I had a lot of curves so it got really strong really fast. I'd suggest 4-6 like Accord said if u have longer flat surfaces or when u put the 3 layers down it still flexs.
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Posted By: bndallas
Date Posted: September 15, 2004 at 12:18 PM
thanks for the info guys.oh yeah on the rule of thumb that if its strong enough to stand on and flex a little, well what if your a 230lb + guy?lmao. Like hottacord wrote I think its 1.5 oz fiberglass mat I want to say andi think I'll add 2 more for good measure.
Posted By: HottAccord
Date Posted: September 15, 2004 at 1:54 PM
haha I weigh about 225 lbs and I still havent dared to stand on any of my fiberglass projects in fear I might have to start all over again and say bye to all the $$ I put into the project!
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Im a fiberglass whore!!
Posted By: satfrk32
Date Posted: September 15, 2004 at 7:41 PM
this is prolly going to be a really stupid question. but how much $$ are you using for this project? Just for the mdf wood + fiberglass. thanks
Posted By: bndallas
Date Posted: September 15, 2004 at 11:09 PM
Well I dont know if you were asking hottaccord or me but you need a little more than that I do know.You need tape, foil ,gloves, brushes,hot glue gun or stapler fiber glass [$10 to $30 ]the mat, the fleece some dowl rods or some type of support for the mdf rings, maybe some screws glazing putty[ around$25] primer, paint, or carpet. ect. Oh yeah and time.
Posted By: satfrk32
Date Posted: September 16, 2004 at 12:39 PM
haha yeah the other materials but im just wondering the mdf wood and the fiberglass resin & mat. I guess just the 2 combined around 75$ ?
Posted By: HottAccord
Date Posted: September 16, 2004 at 3:03 PM
bndallas wrote:
Well I dont know if you were asking hottaccord or me but you need a little more than that I do know.You need tape, foil ,gloves, brushes,hot glue gun or stapler fiber glass [$10 to $30 ]the mat, the fleece some dowl rods or some type of support for the mdf rings, maybe some screws glazing putty[ around$25] primer, paint, or carpet. ect. Oh yeah and time.
LMAO, damn you nailed all the materials!! P.S. You need resin and a router too haha  ------------- Im a fiberglass whore!!
Posted By: bndallas
Date Posted: September 17, 2004 at 9:44 AM
sorry I thought that's what your were asking but that is still alot of money for a father of two and just me working..but anyway guess i should of stay in the garage more.lol
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