Sound Deadening Material Question

I was looking at the second skin web site and they have a paste type product you apply with a trowel. I ordered some with the sound mat so I had something to get the hard to reach places. I also thought it would be easy to do the firewall and engine box with it. Its much cheaper then lizard skin and you dont have to use two products for the same effect.
Got to hit the road for awhile so wont be able to get all this installed for awhile but will post my results when I get them.

 

Update-
Well I finally got sound deadening material put in and after alot of research and price shopping I ended up trying a product sold by a upholstry supply company called Perfect Fit in portland ore. The stuff was a very tight weave fiberglass material with a foil backing. Under that I put a roofing product called ice guard from the home depot. It has a sticky back and no smell. Got to say I am into a fraction of what dynamat or something like that would of been and the results are even better then I could of thought.
Cant remember the name of the sound material I got at perfect fit but its the only sound deadening product on there website. It was 11 bucks a yard and pretty easy to install. Hope this helps anyone out there looking for a really good cheap alternative to dynamat or such. Next is completely redoing my sleeper the same way.

 

Yes it is. Very cheap and works really well. The biggest think was its hard to cut because of the weave of material.

 

None of the products I got stink. Even the roofing ice guard didnt have much of a smell. After I got it stuck down and the other over it it dont smell at all. Hope this helps everyone out.