Its been a week of putting a 1x2x3 board on it with weights and it still wants to curl up. I don’t want to use duct tape. I have to move it to mop so fastening it the floor is out. It is commercial grade and idk why it wont relax on the ends.
(This is a stock picture of the same mat.)


Sticky putty! I have no idea if that would work btw, it may collect dirt/dust when sweeping. Definitely an interesting idea though!
You’re right about that. This was meant for walls so probably would get nasty and gunky quick when on the floor since it wasn’t designed for that.
It makes me wonder if someone developed a special putty for this purpose though. Somehow public places like banks and government buildings keep these down and don’t had to deal with stubborn corners!