I used ceiling tile and used liquid nails the quick contact stuff about 10+ years ago with no problems.* On the tanks and some of the ceiling had large flat areas the rest of the engine room is filled with stuff.* We installed a new high rise muffler system which also quieted down the 671 and gen set.* Carpeting the*salon floor*also quieted and insulated the engine room.
Heck If i installed bubble wrap the grandchildren and I would probable pop them.* There is something addicting about those bubbles.*