I figure instead of starting a new thread I would tag onto this one.
I’ve been doing some testing and I can heat seal the tube fabric to the flooring (1000D I think), but the heat seems to be coming through a little to the underside of the flooring. If it put more tube fabric underneath the floor it kind of sticks, but in a way that there was clearly not enough heat and both sides pull away cleanly. The TPU doesn’t look at all melted, just heated.
I don’t think this is a problem, but I wanted to check to be sure. Is this fine?