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Old 03-09-2005, 01:53 PM   #1
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Sound Deadener

I am putting new carpet around the pilot, co-pilot and doghouse and was wondering if I should use sound deadener or just plain old carpet padding. Don't really know if the sound deadening insulation will make that much difference. I am looking at Dynamat and from what I've heard it works pretty well. Has anyone had experience with this stuff? Is it worth the extra money? If you have any other ideas let me know.

Thanks,
Brian
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Old 03-09-2005, 02:58 PM   #2
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Brian:

You may want to visit this thread:

http://www.airforums.com/forum...ad.php?t=15091


When I pulled up my old carpet there was no padding under it in the pilot/copilot area - I installed the new carpet with a good quality commercial (heavy density) foam pad (except for the doghouse - left the original carpet on and covered it over).
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Old 03-09-2005, 08:05 PM   #3
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I also redid my carpet in my MH. I padded the floor in the cockpit with a high quality pad as well as the carpet. I added the heat and sound insulation under the lid of the doghouse, 2 layers thick. I also added additional padding between the steel of the doghouse cover and the wood underlayment of the cover with carpet on top.

It sounds like a lot of work, but I can tell you that you can have a normal voice conversation with your passenger like you would in your daily driver. That makes long drives easy and less stressful.
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Old 03-09-2005, 10:16 PM   #4
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Dynamat and others

85/345,

I am, this very night, putting together my truck after taking apart the doors, floors and everything not nailed down. I put in two layers of B-Quiet Extreme and one layer of V-comp. I'll tell you in the next couple of days if it is the "bank vault" that it already appears to be. Conversation in a low voice has not been an option prior to this modification. The website for this product is www.b-quiet.com and it was quite easy to order, ship and install. I can only tell you right now that my doors close with an authoritative THUNK, as if they are solid steel. Kinda cool...
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Old 03-09-2005, 11:19 PM   #5
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I'd highly recommend checking out some of the high-tech insulating materials. These tend to be expensive, but they're very effective and thus worth the cost, IMHO.

The B-Quiet site has some good products. I chose one from J. C. Whitney, their P/N ZX158488B, and I've been very pleased with the results. It insulates against heat as well as noise. I used this same material to line my generator compartment, and it's very quiet.

It seems that now I actually get more engine noise through the floorboards and firewall than from the doghouse. I'm in the process of recarpeting the front compartment, and I intend to use the same material as a carpet pad, at least on the sheet metal parts of the floor.

Bob
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Old 03-11-2005, 06:51 AM   #6
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Quote:
Originally Posted by mcneon
I'd highly recommend checking out some of the high-tech insulating materials. These tend to be expensive, but they're very effective and thus worth the cost, IMHO.
I used the same material and with the same results, more noise now from the floor and firewall than engine. The only time I really hear the engine is when the fan clutch kicks in.

For the floor and firewall I think the way to go is spray insulation because of the irregular shape. I used some spray ceramic heat insulation on my inner roof and the temperature reduction was amazing.

John
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Old 03-11-2005, 07:15 AM   #7
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Quiet !

Who can be more particular than expensive yacht owners?

In the U.S. Mega-Yacht industry the leader in sound reduction technology can be found here: http://www.soundown.com/

No doubt your 'Land-Yacht' is worth it!
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Old 03-11-2005, 07:38 AM   #8
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Quote:
Originally Posted by 74Argosy24MH
....... used some spray ceramic heat insulation on my inner roof and the temperature reduction was amazing.

John:

Do you have a make or website for the ceramic spray?

That's a new one on me.

THanks,
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Old 03-11-2005, 08:16 AM   #9
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You betcha. It ain't cheap, and has gone up since I got it even. It has to be something repackaged because I couldn't find it anywhere else under that name.

http://www.partsexpress.com/pe/showd...number=268-232

It really works. I made the inner roof above the cab and had it laying outside in the sun. It was so hot I could hardly touch it to bring it inside. Sprayed it, put it back outside and the bottom was barely warm.

John
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Old 03-15-2005, 04:42 PM   #10
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I have been looking and I am leaning towards the b-quiet. Mainly because of price, 50 sq. ft. cost $130 where as 36 sq. ft. of Dynamat cost $250. And if I buy it on ebay I can get it even cheaper, around $100. I am just curious, for those of you that bought the b-quiet, which type did you get? I am looking at the bquiet ultimate. Another question what should the temperature rating be? For the bquiet ultimate the temp rating is 311 degrees.

I called the Soundowner, noise deadener used in yachts, and they are sending me some samples. They wouldn't quote me a price over the phone for some reason, but they are sending me a price sheet.

Thanks,
Brian
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Old 03-15-2005, 07:04 PM   #11
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what about the neoprene sound deadener I saw on Ebay? Looked like a good product at a fair price. Supposedly used in Boeing aircraft.
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Old 03-16-2005, 10:31 AM   #12
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Looked at the neoprene and was concerned about the ease of installing it. From what I read you have to use spray adhesive or something similar to install it. I have never really had any luck with the spray adhesives, could be I was just using the wrong kind. With the others they already have adhesive on them.

Was thinking and realized all I need on the floors is a pad that will help reduce the noise, I don't need any heat shield. The only thing I need a heat shield on is the doghouse cover. Am I right in thinking this way?

Brian
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Old 03-16-2005, 10:58 AM   #13
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b-quiet!

85/345,

I put in about two layers of the Ultimate (self-adherent) and then put down one layer of the V-comp. I used 3-M spray adhesive on the doors with excellent adhesion results at 24hours. I now drive around with more of a "bank-vault" feel and the stereo sounds "tighter" if that is the right way to say it.
There is no adhesive required for floors but is may help to keep it from bunching up under the floormats.

IceKing02
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Old 03-16-2005, 11:29 AM   #14
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Ceramic spheres source. They have a range of products.

http://www.hytechsales.com/prod1000.html
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