Originally Posted by DanTwoLakes
I don't think any of the asphalt or butyl based insulation products could handle the heat from exhaust pipes for an extended period of time.
I agree, if this stuff was laying next to the headers. But when applied inside under the carpet, is it going to reflect that head away? After reading (a lot of) the lizard skin link, it appears that if the stuff is marketed directly at car guys, the price is marked up. I'm just wondering if anyone tried the stuff.
Looks like what we need is a test. Say 12 x 12 panels covered with the various material. Take a heat gun to the backside for a couple of minutes then measure the radiated heat.