posted 01-13-2010 07:52 AM ET (US)        

http://www.un-hesive.com/

From the website:
"Un-Hesive(TM) is a patented product specifically
designed for the removal of cured polyurethane
adhesive residue from the use of sealants such as 3M
5200 Marine Adhesive Sealant(TM) and Sikaflex(TM).
When these sealants are used to add hardware to
your ship's deck or make a repair, the cured adhesive
could only be removed mechanically. Un-Hesive "breaks
the grip" of these polyurethane adhesives without material
breakdown. The product can be sprayed on and just a
few minutes later the cured sealant can be peeled off intact with no damage to the surface."

"Un-Hesive(TM) also claims to be the first solution to successfully remove low expansion polyurethane foam, widely used in the marine industry"

My quarterly Chris-Craft Club magazine seems to be ballyhoo-ing it, but I can't tell if it's an actual endorsement or simply paid advertising.