> > Bobby
>
> I use the "Heat Screen Radiant Matting", gluing it down with high temp
> silicon diluted with solvent to make it paintable (another tip from Ed),
> works well on cowls and such.  I did have some one my firewall only
> about 1.5" from my original spintech muffler and the heat from the
> muffler burned off the aluminized side that was supposed to rated to
> 2000F and there is no way it got that hot.
>
> Perry Casson

Perry/ Bobby,

I found a heat shield material matting, I think it's made from Kevlar   -
it's not cheap but I didn't need a lot of it. They use it to insulate the
council bus engine bays.

I used silicone straight out of the tube and worked it into the material
with a squeegee and left a small layer (1/32" - to 1/16") of silicone on the
surface.

I did try diluting the silicone and found it messy  and not entirely
satisfactory, but found the squeegee very straight forward and easy to
manage. Did one side one day and the other side the next.
Hope that helps!
George (down under)