Kool mat
 

http://www.koolmat.com/main.htm

Anyone heard of/used this stuff before?

I have a 1970 Volvo 142 and the dash gets a little warm after driving a little while, I wonder if when I (eventually) replace the dash I can slap some of this stuff on the chassis and put the new dash over it, and it can absorb some of that heat that emminates from that little 4-cylinder.

It looks like good stuff, but I've never heard of that one. But I am familiar with Dynamat http://www.dynamat.com/products_auto...roduction.html ...not that I'm saying one is better or worse; basically the concept works well and should solve your heat problems on the old Volvo, plus make things a tad quieter, too.