[DeTomaso] cabin heat-A/C

[John Taphorn]

Jeff and others

What are the latest opinions of the best material to use on the engine side 
of the three sections of firewall below the rear window.

Thanks
JT
----- Original Message ----- 
From: <JJD1010 at aol.com>
To: <matt at nwpantera.com>; <detomaso at realbig.com>
Sent: Saturday, December 05, 2009 11:26 AM
Subject: Re: [DeTomaso] cabin heat-A/C


> Matt, there are components of both heat and sound that need to be
> attenuated. Here is sort of a primer to get you started. There are lots of 
> products
> out there and if you understand the properties you will get what you 
> need.
>
> Heat
> There are 3 types of heat.  1)Conductive Heat flows through a solid object
> from hot to cold. These need to  be blocked. 2)Convective Heat is heated
> airflow, usually  caused by air leaks into the car. These need to be 
> sealed up.
> 3)Radiant Heat is the flow of invisible infra-red rays  emitting from the
> surface of an object. These need reflective barriers.
>
> _http://www.glacierbay.com/Heatprop.asp_
> (http://www.glacierbay.com/Heatprop.asp)   Technical reading about heat.
> _http://www.coolcarceramic.com/comparisons.htm_
> (http://www.coolcarceramic.com/comparisons.htm)    Blocker and sealer for 
> heat and sound.
> I used this in my engine compartment and firewall, passenger  compartment
> and roof, front trunk, and under the car. I also  used a reflective 
> barrier
> on the engine bay side of the firewall.
>    Similar products
>         _http://www.industrial-nanotech.com/howitworks.htm_
> (http://www.industrial-nanotech.com/howitworks.htm)    good reading
>         _http://www.lizardskin.com/_ (http://www.lizardskin.com/)
>         _http://www.dynamat.com/products_automotive_dynaspray.html_
> (http://www.dynamat.com/products_automotive_dynaspray.html)
> _http://www.koolmat.com/main.htm_ (http://www.koolmat.com/main.htm)
> _http://www.jcwhitney.com/Heat_Sound_Insulation?ID=12;0;0;0;100001;ProductNa
> me;0;0;0;0;2010475;0;0_
> (http://www.jcwhitney.com/Heat_Sound_Insulation?ID=12;0;0;0;100001;ProductName;0;0;0;0;2010475;0;0)
>
> Sound
> There are several types of sound control products. 1)Vibration Dampers 
> are
> used to eliminate or reduce structural resonance and vibration. 2)Sound
> Barriers are used to block and reflect high energy airborne sound like 
> exhaust
> and tire noise. 3)Sound Absorbers are primarily used to soak up mid band
> and  high frequency airborne sound and reflect thermal energy. 4)Gasketing
> Materials  are used to eliminate squeaks, rattles and buzzes and to seal
> speakers.
>
> _http://www.quietride.com/auto-acoustics-101.htm_
> (http://www.quietride.com/auto-acoustics-101.htm)  Good  reading.
> _http://www.b-quiet.com/index.html_ (http://www.b-quiet.com/index.html)
> _http://www.b-quiet.com/compare.html_ 
> (http://www.b-quiet.com/compare.html)
> _http://www.cascadeaudio.com/car_noise_control/index.htm_
> (http://www.cascadeaudio.com/car_noise_control/index.htm)
> Go to product links further down the page to get good description of how
> the different kinds of sound control work. I used VB2HD on my doors and
> Dynamat  inside the doors.
> _http://www.dynamat.com/products_automotive_dynaliner.html_
> (http://www.dynamat.com/products_automotive_dynaliner.html)
> _http://www.dynamat.com/products_automotive_dynamat_xtreme.html_
> (http://www.dynamat.com/products_automotive_dynamat_xtreme.html)
> _http://www.dynamat.com/products_automotive_dynapad.html_
> (http://www.dynamat.com/products_automotive_dynapad.html)
> _http://www.glacierbay.com/insulation_ultradb.asp_
> (http://www.glacierbay.com/insulation_ultradb.asp)
>
> Good luck.
>
> Jeff
> 6559
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