dynamat sound

hey does anyone know if dynamat will stick to undercoat that has been applyed inside a cab
thanks

It sticks to just about anything that is clean and somewhat nonporus.  I sometimes use a heat gun when i install it on anything other than bare metal.  It makes it more sticky.  hope that helps some.  good luck!

thanks for the input

FatMat is less money, & test out to have as much if not more deadening properties .

try goin 2 lowes and pickin up some pealnstick roofin its a lot cheaper and ten times the amount works just as well or better it has a foil on one side so it helps keep out heat as well