I would use it to seal a leak but it wouldn't be structural fix. With all the flexing our aatv tubs do I don't think it would work. Maybe give it a try but definitely keep an extra can in your travel kit to get back from the other side of the pond. I have used it many times at work for other things. (But I've also been called Macgyver at work too)
If it is that hard to remove, it sounds pretty permanent. As Robphibious says, it's not structural, but it should be pretty flexible as that is a selling point. Maybe it is a little longer temp fix...
I'm going to add a can to my kit and see how it does.
I think I will put some on my tub and see how it fares over several trips and report back to the group.
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