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Old 01-25-2009, 08:49 AM
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Good sound deadener alternative

Thanks for having a look at my post,
I am working on a 1965 Thunderbird, and will be stripping out the interior first to patch a few new floor panels in, and to insulate the cab with a sound deadener.
I am looking at using LizardSkins paint on application, but would like to find some other choices for this due to cost.
Any recomendations would be greatly appreciated.
Thanks

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Old 01-25-2009, 09:59 PM
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I'm actually thinking of using the Rhino Liner spray in bedliner for trucks on the cab floor of my truck, then covering with a Dynomat type product (definately not Dynomat though) then putting the carpet down on top of that.
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Old 01-26-2009, 04:04 AM
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This has been thoroughly discussed in this thread: ALTERNATIVE TO LIZARD SKIN It's a long thread but you need to read the whole thing.
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Old 01-26-2009, 05:11 AM
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I feel it is just about as good as it gets to use the bedliner and then traditional Jute on the floors and firewall..bedliner kills some of the vibration in the metal and then the jute offers some sound insulation..Dunno about all this new tech stuff..The bedliner is a vast improvement over the old tar stuff..

Sam
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Old 01-26-2009, 07:51 AM
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Great topic.
I will try to make this quick since I can tend to get long winded about this subject.

Here are the basics you need to know when approaching any sound deadening job.

There are 2 types of noise that are traditionally focused on in an automobile:
- Structure borne noise
- Airborne noise

To do a good job at reducing unwanted noise, you will have to tackle both problems with separate solutions.

First, use a vibration damper to kill the resonance/vibrations and structure borne noise. This can be a vibration mat, or spray. You mentioned Lizard Skin. If you use Lizard skin make sure you get the noise coating they sell, not the ceramic loaded coating (which is meant to reduce heat).
The sound coating they sell is a good one for sure, but in an ideal noise reduction project you will want to use it differently from the way they tell you to on the LS website.
The best way to reduce structure borne noise is with 2 different products.
On our website we suggest using 2 products.

First, apply a vibration mat to the interior sheet metal of the car. Under the carpet, and behind all the panels that are covered with upholstery & trim.
This will kill the vibrations from the inside.

Then, use a noise coating on the underside of the car, on the floor pan and the wheel wells. This will sandwich the sheet metal between the two vibration dampers. This will yield awesome results! You can then use a gallon of the noise coating inside the car, in all the cavities and spots you could not reach with the vibration mat.

The final step is to use a noise barrier on top of the vibration damper inside the vehicle. This will block the transmission of airborne noise in to the cabin.

Unfortunately there is not a one size fits all type of product.
Everyone has different goals, different cars, different budgets and different weight restrictions, so to try an use a single product to achieve everybody’s goals in not possible. If there was one product that did it all, I would save myself the warehouse space and sell on ly one product rather than 15 or so.

The above linked thread with the instructions on how to make your own Lizard Skin is good, but there is a lot of misleading information in it. Lizard Skin is much more than paint with ceramic spheres or glass beads. There is a very specific science behind the product. I know this because we spent 2 years formulating our own ceramic product and let me tell you. It is difficult. Also, loading the paint with ceramics will take away from the sound deadening results. Only go the route of ceramics if you are looking to reduce heat.

If anyone has any questions related to sound deadening or theram insulation, feel free to ask me. I am always happy to help, regardless of which product you use.

ANT
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Old 01-26-2009, 09:12 AM
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More great info, ANT, thanks! You really should put your web site info into your public profile so the guys can check out your products.
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Old 01-26-2009, 11:17 AM
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alternative to lizard skin,

HI,go to post # 159,and read my non-scientific test .on alternative to lizard skin.
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Old 01-26-2009, 12:33 PM
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check out b-quiet.com
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Old 01-26-2009, 12:42 PM
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Also see this wiki article: Ceramic insulation.
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Old 01-26-2009, 12:56 PM
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Quote:
Originally Posted by DanTwoLakes
More great info, ANT, thanks! You really should put your web site info into your public profile so the guys can check out your products.

I just updated it!

Thanks for the suggestion!

ANT
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Old 01-26-2009, 01:12 PM
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Thanks Second Skin Rep.

I've started a wiki article on this subject: Sound deadening. Feel free to add to it. Thanks.
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Old 01-26-2009, 01:58 PM
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Ride,
stock T-birds were relatively quiet and well insulated...
(there is lots of sound deadner and insulation already there)

once the new floors are in,,,test drive the car with no interior to determine what and where and which sound deadener and where/which/how much more insulation is needed ...

if you have made changes to the motor and exhaust,,,that changes the drivetrain harmonics so likely you will need to add some sound deadener (often in the weirdest places) to some panels...

your getting ahead of yourself researching now...

there are 20+ products that might be the best choice depending on what is needed....
as a example since your in AZ here's a link to second skin in AZ,,check out the products section....

http://www.secondskinaudio.com/vibra...FQJvswodNFv-nQ

Last edited by red65mustang; 01-26-2009 at 02:07 PM.
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Old 01-26-2009, 06:05 PM
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Quote:
Originally Posted by Jon
Thanks Second Skin Rep.

I've started a wiki article on this subject: Sound deadening. Feel free to add to it. Thanks.
Will do Jon!

I am on my way out of town for a few days.
Going to Hawaii. I will be back on Monday and will set aside some time to plug in to the Wiki then.

ANT
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