[Lynn]

Tim,

I have no clue wether they do or don't. I get emails like this form several companies and if it appears that it could be useful to our community, I'll post it up.

There are several types of aluminized heat sheilding made by two or three different companies. The one I have used in the really hot areas has an aluminized layer on a layer of silicone fabric. This stuff costs ~$80 for a 36"X48" piece if memory serves. I bought mine from Pegasus Racing. For the other areas, I used the cheaper stuff that is aluminized ticking material. On the firewall, I used both right in front of the engine since the ticking has some noise dampning quality as well. On the interior side, I used hi-temp mastic and a layer of fire retardant polyethylene foam and then the carpeting. In areas that were visible, ie exterior of the footwell, I used Dynamat extreme , while the inner walls have the hi-temp mastic/polyethylene layers under the carpet. My guess is that this stuff is more like the regular dynamat which is not aluminized like the Dynamat Extreme. It would be nice if this stuff worked as well as Dynamat, but is cheaper. (gee, where have I heard that recently :-) The hi-temp mastic/polyethylene together cost about 1/3 of dynamat (check McMaster-Carr for these materials.)

If you want the current wisdom on sound dampening, check out the competition auto stereo forums. That was what I did several years ago. I am sure a lot has changed since then in that area.

Regards,
Lynn