sealing a box?

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Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=81000
Printed Date: June 09, 2024 at 3:16 AM

Topic: sealing a box?

Posted By: studum
Subject: sealing a box?
Date Posted: July 31, 2006 at 10:04 AM

Hey guys, I have a question about sealing enclosures.

Traditionally I have just siliconed the interior joints of a box.

Someone has told me that coating the inside of the MDF box with fibreglass resin helps in the sq department too.

I am inclined to test this theory. I have built 2 sealed boxes for my 2 Infinity 1030ws (I traded my 12s for 10s). The have left the back panels are off so I can seal the front of the box easier, then I will attach the rear panel and seal through the hole.

My question has to do with procedure regarding the fibreglass resin application.

Do I still silicone the joints, then resin over it? Do I only apply the resin with no silicone? Any specific resin to buy and use or is it all the same? Simply brush it on and let it dry?

Incase you haven't figured it out I have zero experience with anything to do with fibreglass or fibreglass resin.

Thanks.

Replies:

Posted By: jeffchilcott
Date Posted: July 31, 2006 at 10:27 AM

typically we just leave a very very small whole in the top of the box, and pour in a good amount of resin into the box. Then turn the box over and over for about 10 mins. cut out sub holes and done.

But I think it is much easier to use a brush and just put it on.

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place

Posted By: Velocity Motors
Date Posted: July 31, 2006 at 6:03 PM

The fiberglass resin will only seal off the silicone. Most MDF or HDF is dense enough to not have any air leaks.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA