Well, I’ll say this for it: it sure looks nice without the butyl goo oozing out from under it, and it will stay that way. I’m not really a fan of butyl tape under something that gets as much pressure put on it as a jack mounting plate does. OSI Quad and Sikaflex are both polyurethane sealants, and good quality products. They cure to a rubbery consistency that allows some movement without cracking.
I’m not really too concerned about removing it either. The chances are slim I’ll ever need to, but if I do I’m sure I can do it. Might not be easy, but I’ll get it off.
:):)