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How many layers at one time


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cubinbob 
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Posted: May 26, 2005 at 3:39 PM / IP Logged  
how many layers of fiberglass mat can you lay at one time. I did one at first but that is just a waist of brushes. So i did two at the same time and it came out good. Can i do three or four.
5150azn 
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Posted: May 26, 2005 at 4:35 PM / IP Logged  
I say as many as you can handle. I lay as much as I can. The only thing that limits me is the resin, how much can I lay before it starts getting hard.
Tell the Snap-On guy I'm not here!
cubinbob 
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Posted: May 26, 2005 at 4:48 PM / IP Logged  
that is the answer that made my day. Thanks alot
cubinbob 
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Posted: May 26, 2005 at 5:18 PM / IP Logged  
ok one last question. it is a 9 cubic feet box for 4 12 in a single ported chamber. About how many layers should i do. I was thinking six layers of fiberglass mat and the one layer of fleas that i started with. What do yall think
Velocity Motors 
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Posted: May 26, 2005 at 7:29 PM / IP Logged  

3/8 - 1/2 " braced for that kind of enclosure. Otherwise you will see flex in the enclosure. Make sure you brace that enclosure as well otherwise you will need it to be thicker

Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
cubinbob 
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Posted: May 26, 2005 at 8:13 PM / IP Logged  
just the top or 1/3 is made from fiberglass. It is still a big chunk from the totall box.
Velocity Motors 
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Posted: May 26, 2005 at 9:01 PM / IP Logged  
Better safe than sorry when constructing an enclosure that is made from two different materials. The thicker the top portion it, the stronger the overall enclosure will be espcially if you have the weight of 4 woofer's on the top.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
oonikfraleyoo 
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Posted: May 27, 2005 at 9:16 AM / IP Logged  
Also, if you layer too many (more than like 10) at once your project may end up warping out of shape from the heat.
Nik
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modena0 
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Posted: May 27, 2005 at 9:47 AM / IP Logged  
given that i have not done that many layers at once, i wouldnt know that, but i had thought that it only heated up really hot if there was an overuse of hardener, and also i would imagine once you got to 5 layers, the first layer or two would already be partially cured, again depending on hardener use.
racer427 
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Posted: May 27, 2005 at 12:20 PM / IP Logged  

To be safe, I would not lay down more than 2 layers of glass at a time, it will be easier to work out any air bubbles that will pop up plus there is a chance that the work will warp a bit.

If you are concerned about materials, just use the 50 cent cheapo brush's and small cheap mixing containers.

Chris

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