Anyone use this stuff?? Dynamat is too heavy and I onlt want to do a couple spots.

Summit has it. I noticed it in a catalog when I was in the bathroom at work the other day. (bathroom reading... Summit )
http://store.summitracing.com/partde...5&autoview=sku

 

I've never used it, but i've heard that it's pretty good.

 

I would, without a doubt, say that that stuff will not work as good as Dynamat or Second Skin or others of its type. Your trying to mass load a panel to convert sound into heat and theres not alot of ways to do that without weight. PM me if you need dynamat, I have about 10 rolls it

 

I just use the 3M rubberized undercoating; works just as well as dynamat/fatmat in most applications.