It probably was glued construction rather than RF-welded polyurethane coated fabric.

I found someone on Craigslist trying to sell an old Navy life raft that had been sitting in his neighbor's backyard for 12 years. I told him it was no good and if he tried to inflate it he'd better stand back about 50 feet or so because he might end up looking like the Pillsbury Doughboy if the raft burst and blew talcum powder all over the place. Yikes!

There's a good reason they are destroyed rather than surplused.

Tom A.