Review on XFasten Black Butyl Seal Tape: 30-Foot Leak Proof Putty Tape for RV Repair, Window, Boat Sealing, Glass, and EDPM Rubber Roof Patching by Sam Davenport

Used to seal a leaking window on my camper van door. It's really sticky stuff. The company emailed me the info before my order arrived with processing tips - put it in the fridge a few hours before use - and it worked great. The tape was too wide for my application, but once cool, I was able to easily cut it in half with titanium-coated scissors and place it in the channels on the frame. (not sure if the coating of the scissors had an impact on the tape not sticking to it or not). This material is very malleable to fill gaps. I had squeezed some sealant out from under the frame when tightening the bolts and used a plastic picnic knife to cut off the excess and pry out. When I was working on this project, the outside temperature was only 50 degrees.