We have used this tape to seal up our greenhouses for several years. It works. Which is more than I can say for other tapes we've tried. It stays sealed. It doesn't peal even through our soggy winters.
Not sure if I had the best of circumstances, but the patches blew of in 2 or 3 breeze days.
It seemed to work fine. We had a tear (as always) in our poly greenhouse and needed to repair it. We ordered more tan we actually needed - to save postage and shipping charges.
I patched a tear in my hoop house last year and it held all winter. It's still holding.
Works great and easy to use.