There seems to be a lot of theories on this subject isn't there? I think a person could use both a butyl composition deadener and the microsphere type of product and really have the best of both worlds. I think the Damplifier Pro is a great alternative to Dynamat, and certainly cheaper.

I was skeptical of the microballoon idea until I came upon this-


http://www.metalshield.com/insulation.html

I did not know that it was used on the Shuttle Tiles, and given what it is expected to do, there must be something to it-then I came upon this:

http://www.schennor.com/

I did not know that microspheres (microballoons) were a by product of coal plants-interesting.After reading more on the Hy Tech site, they recommend that you can put it on with an Airless Sprayer (which I happen to have )-could that be the answer to buying the Lizardskin gun? Not sure, but I do think this stuff is the same as Lizardskin (and cheaper)-look at this:

http://www.metalshield.com/buyrustproofing.html


http://www.hytechsales.com/prnt_paintlist.html

and, of course, we can't forget Wikipedia:

http://en.wikipedia.org/wiki/Insulative_paint

I am on the fence on this, but think I will use Lizardskin (or a derivative), and a butyl based product-can't hurt-