This is Great for Sail Repair - Gorilla Clear Repair Tape

www.gorillaglue.com/gorilla-clear-repair

www.walmart.com/ip/Gorilla-Clear-Repair-9-Yard-Roll/35536426

I saw this tape last year and bought a roll, just in case. Although I have not tried it yet it's noticeably sticky and very tough. If any one has tried this stuff I'd be interested to hear how it holds up

www.walmart.com/ip/Camco-Awning-Repair-Tape-3/16783120