The latest links for 3M Thinsulate acoustic insulation for marine use are as follows:
http://solutions.3m.com/wps/portal/3...ansport/marine for the general marine acoustic website
http://solutions.3m.com/wps/portal/3...K 6B2TWB8MXgl for the specific product information (from the product catalogue)
http://solutions.3m.com/wps/portal/3...al/Thinsulate/ is or sound and thermal insulations.