So, I just want to say that I expect this to be shot down in about 0.24 seconds by a WoB.
So, I was thinking about how you always see people removing friction from things with abrasion, and I thought that was kind of weird. Abrasion is the surge of FRICTION right? So, you should be able to also add friction to objects, right?
I think that it would explain how edgedancers were able to "Dance across the thinest of ropes" (Or something like that. I can't remember the exact quote.) Because they would add friction, so they would not slip off.
You could also use it to climb up almost sheer vertical surfaces because you would not be afraid of sliding down.
Now, I don't think that is likely because we have not seen lift to it, but if it was possible it would be really cool.