Originally Posted by GLN305 View Post
It's not really the same type of adhesive in Second Skin, but I would venture to say it's close to or identical to Raam Mat or B Quiet. Here's a section of text I took from the link you gave:

"rubberized asphalt adhesive"

In my opinion I would use this instead of anything but Dynamat Extreme and Second Skin. It should work!
I didn't think that raammat bxt had asphalt. Thought it was pure butyl. So, why do you put dynamat and second skin in a different class than the other pure butyl options?