Reddit reviews Flex Mend Belly Bottom Repair Tape, 4 Inches x 108 Feet
We found 1 Reddit comments about Flex Mend Belly Bottom Repair Tape, 4 Inches x 108 Feet. Here are the top ones, ranked by their Reddit score.
repairs holes & rips in underbelly
It's underbelly tape. Used to repair cuts made to the underbelly to access things that need repair. You can buy more on Amazon or any RV repair place will have it. It's like 8" wide and super sticky. Only take the backing off a few inches at a time if you replace it yourself. Also make sure the underbelly is really dry or it will start peeling like it is in your picture.
TL;DR It's basically duct tape for underbelly repairs.
Try this