Quote Originally Posted by sossol View Post
It's probably soft enough to cut for some time after it's inflated. Maybe it fuses to other layers during the curing process.

Neil
Agreed.

While that is nifty for a demo it seems like it would be way more useful if it didn't require manual perforation and trimming in the wye, since 98% of the use cases I would like to use it for will be out of arm's reach...