Hmmm. I don't know if we spoke with the same Whites representatives. On two separate occasions (Whites demo days), I was told that the waterproof barrier on the Fusion is made of a bilaminate material. I agree that this is probably not a big deal, since the outer skin provides some abrasion resistance. Moreover, I haven't heard of the material on a Fusion delaminating since the suit has made its debut...but the suit hasn't been on the market for that long.
It's certainly possible that the Fusion bilam is different from the problematic bilam to which TSandM was referring.
My drysuit (Bare Nex-Gen Pro) is technically a bilaminate shell suit. I haven't had any issues with the material breaking down, but then again I've only put a couple of hundred dives on the suit (purchased new approx. 5 years ago).
I just couldn't specifically remember if it was a bilaminate Given some of it's make-up it may have been a whole other animal. The bag is certainly different as it's inconceivable to me that a plain bilaminate suit would be so thin. The guy did really tout it as a new breakthrough material. He talked a lot about the strength of the fabric and the urethane waterproof coating.
I went to the Demo in June of 2008 and the suit had some good exposure before then so I'm guessing it's been on the streets for 30 months now. Not forever but a while.
Pete