Flexible Sealer and Sound Deadener 16 oz Aero
Product Review (submitted on February 13, 2013):
This stuff lays on nice and smooth. Wish one can would go a little farther. Can't even get one wheel well with one can. Its going to be pretty expensive to do both sides. I wanted to do the firewall and trunk but that might take ten cans. Might as well just buy lizard skin.