It’s good stuff..
I have one of those ShelterLogic shedinabox thingies that had become the home for the Olde Deere, the RedRidingMower and accompanying trailer for hauling yard debris or Grandkids, and the two walkbehind mowers. (You know, the stuff that once was in the barn until it collapsed and then spent a year covered by a big tarp under the cedar tree. That was not an ideal situation, and that was the year that I couldn’t convince the Olde Deere to start at all in the winter providing impetus to find an alternate reality, er, I mean solution. Well, it’s all back in the barnremains now because this shedinabox is lagbolted to the concrete floor in there..)
Anyway, the canvas/poly/whateveritis cover developed a tear that telegraphed its intent to rend further and threatened to destroy the usefullness of the structure. Said rip in the canvas is now ‘fixed’ with some black gorilla..
I can picture as the material ages that eventually the entire cover will be made of various colours of Gorilla.. ;-)