Seal MDF inside box?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=36678
Printed Date: May 06, 2024 at 11:36 AM
Topic: Seal MDF inside box?
Posted By: MBZ oe
Subject: Seal MDF inside box?
Date Posted: August 03, 2004 at 3:43 AM
Does anyone coat the inside of MDF enclosures with any type of sealer or anything? I don't mean the corners/cracks. ------------- BOOM, BOOM, BOOM BOOM....
Replies:
Posted By: ice4life8269
Date Posted: August 03, 2004 at 6:14 AM
some people use rhino liner or other truck bed liners. i guess this is a good way to go... ALSO, don't let anybody tell you to use undercoating, because that stuff stays relatively flexible, andyou need something to make the MDF more rigid
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Posted By: DYohn
Date Posted: August 03, 2004 at 8:25 AM
I've found it is generally unnecessary. Just be sure all seams and openings are sealed air-tight. ------------- Support the12volt.com
Posted By: ice4life8269
Date Posted: August 03, 2004 at 8:38 AM
werd.... use thick MDF and make sure you seal it good  -------------
Posted By: MBZ oe
Date Posted: August 03, 2004 at 1:11 PM
What about a coat of primer and paint? Would that help?
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BOOM, BOOM, BOOM BOOM....
Posted By: DYohn
Date Posted: August 03, 2004 at 1:15 PM
Would it help WHAT? I am asking because you seem to have an idea that something is going to be wrong that you're trying to fix. What do you think you need to fix? If you use 3/4 to 1" MDF, there is no need for internal treatment or sealing on the enclosure walls. Be sure to properly design the system with internal bracing, etc. to keep it from flexing. ------------- Support the12volt.com
Posted By: MBZ oe
Date Posted: August 03, 2004 at 1:19 PM
I'm not trying to fix anything. I just want to build the best enclosure I can. I have read on here before that someone recommended to seal the inside of any MDF enclosure because it is still porous. I simply mean is there really a benefit? The box will be constructed airtight already so thats not what I'm saying. ------------- BOOM, BOOM, BOOM BOOM....
Posted By: DYohn
Date Posted: August 03, 2004 at 1:23 PM
OK, I understand. Yes, some people like to seal the inside of their enclosures with fiberglass resin or epoxy or truck bed liner. I have never seen any measureable differences between using interior sealant and not, as long as the enclosure is made from MDF. Cheers. ------------- Support the12volt.com
Posted By: MBZ oe
Date Posted: August 03, 2004 at 1:25 PM
Thanks DYohn. I won't waste my time with it  ------------- BOOM, BOOM, BOOM BOOM....
Posted By: forbidden
Date Posted: August 03, 2004 at 1:48 PM
If you are an anal installer like me, then you always take things to the next level. Something like this as simple as it is sets me apart from my competition. I do not do this on every box I build, but I will always at least give it a coat of spray paint on the inside of the box.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: MBZ oe
Date Posted: August 03, 2004 at 1:53 PM
>>If you are an anal installer like me, then you always take things to the next level<< Forbidden: that describes me as well. I was going to stop by the auto parts store today and see what a smaller can of that bedliner goes for. ------------- BOOM, BOOM, BOOM BOOM....
Posted By: Ravendarat
Date Posted: August 03, 2004 at 1:55 PM
I have used fiberglass resign before, not because I think it needed it, but the customer was convinced by a "buddy" That he did so I said fine, I coated the box and charged him $125 extra to do it and he was more than happy. Go figure
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
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