Curing Time For Fiberglass
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=29579
Printed Date: May 16, 2024 at 12:05 PM
Topic: Curing Time For Fiberglass
Posted By: nyguy4u
Subject: Curing Time For Fiberglass
Date Posted: April 02, 2004 at 9:22 PM
I don't know if this is a stupid question, but here it goes anyway!. After you resin fleece on a subwoofer box, I realize you start glassing after the resin is cured and dry. But when you actually start the layers of glass, can you do one layer after another?. Or after one layer, do you need to wait for it to dry?. If you do need to wait for it to dry, how long usually do you wait in between layers?. And if you don't need to wait.. after building up 6..7..8 layers of chop matt, wouldn't it stay damp with that many layers??.
Replies:
Posted By: 93accordSE
Date Posted: April 02, 2004 at 9:44 PM
You do one layer after the other. If you wait for layers to dry then you can get air between layers easily. 6-8 layers, you should probably give it a day or two to cure. -------------
Posted By: hbk00
Date Posted: April 02, 2004 at 10:23 PM
do 1 right after the other you'll use less resin
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go custom or go home!!
Posted By: my12volts
Date Posted: April 04, 2004 at 6:15 PM
1 layer after the other better that way........
Posted By: defective
Date Posted: April 05, 2004 at 9:54 AM
Theoretically... f/g would take the same time to cure whether it is an inch thick or a mm thick.... it does not need air to dry.... in fact, air causes it to cure slower. Just a little tidbit for ya. Lay it on as thick as you want it or you will just be wasting time and gaining air bubbles. : ) -------------
Posted By: nyguy4u
Date Posted: April 05, 2004 at 11:04 PM
ok cool.. layering the fleece without waiting will save me ALOT of time. Another curing question.. the first step, when I resin the fleece.. generally, how long do you wait after you resin the fleece until you start your first layer of glass?. Thanks for the help so far!
Posted By: nyguy4u
Date Posted: April 08, 2004 at 10:01 PM
anyone?
Posted By: dangerranger96
Date Posted: April 09, 2004 at 11:20 AM
let the fleece dry completely before you start to layer on the fiberglass. This gives you something rigid to lay the fiberglass on and makes it much easier to get the fiberglass going
Posted By: defective
Date Posted: April 09, 2004 at 2:32 PM
also when you let the fleece dry it is not as heavy and will hold the right curves until dry. Then you use mat to rienforce the shape
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Posted By: nyguy4u
Date Posted: April 10, 2004 at 9:21 PM
I know all that. I mean actual time wise to wait until I lay the glass. I'm assuming I need to wait for the resined fleece to dry before I lay down fiberglass.. correct?. Question is, how long is the standard wait time from when you finish resining the fleece, to laying down the glass?. hour?.. hours?.. overnight?..
Posted By: dangerranger96
Date Posted: April 11, 2004 at 12:18 AM
until the fleece is dry and hard, could be two hours could be 12, depends on how much mekp you put in the resin goodluck
Posted By: Velocity Motors
Date Posted: April 11, 2004 at 11:55 AM
I prefer to wait between layers for my projects. If you lay down the mat properly and use a de-air roller, you will not get any air bubbles in the project. Take your time to do it right the first time and you will not have to do it again or take extra time to sand down high spots or fill in low spots. Your not on any time schedule or doing this for a customer, so experiment with different things and learn from what you do.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: pureRF
Date Posted: April 11, 2004 at 1:58 PM
You can tell when to put mat onto the fleece when the fleece is no longer sticky and its hard. I would also sand down the fleece a little so there are no bumps in your project. For the first 2-3 layers of the glass i would wait for the one before to cure, mostly because the heat and weight from the layers can mess with the shape since theres just a thin layer of fleece holding it all up. But after those first couple layers have at it.
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dream it, build it, fiberglass it
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