dynamat, sorry.
well, i got the dynamat trunk kit, which comes w like 3 18''x32'' sheets of original dynamat, n 2 18''x32'' sheets of extreme dynamat. i am not sure how thick they are, but i checked the website n it says that dynamat extreme is "4 mil thick aluminum layer".
to tell you the truth, it wasn't enough for my trunk (i got a honda accorD). but for the most it worked well. i used the extreme on the sides of the trunk n the trunk lid cuz those would be the places that would rattle more, or that's what i thought at that tiem. and i use the original dynamat in the trunk floor. it diminished the rattle by a lot, but it still rattles when i bump my music loud. so i need to put a semi second layer, just prob 2 more sheets of teh extreme to retouch it i guess. i would like to double up the side for better performance i guess.
so i am thinking of just getting the second skin to put on the places i need. i even have pics of putting it. if you anyone wants, i can post them (i just need to find a scanner to borrow) so people can see how to do it and stuff.