I just replaced the wipe seals on my bedroom slideout and they wouldn’t flip over. Monaco used that mild sandpaper tape on the sides of the slideout but they still wouldn’t flip over.
I bought some 1/4”, 1/2 round plastic body molding and installed it about 1/2” from that sandpaper tape and it works great !
It comes with 3M adhesive tape, and I used acetone to clean the surface and applied the molding.
It is hardly noticeable and so far, works great.
I found it on eBay