OSI pro series H2U acrylic urethane sealant
Evergreen says to use a urethane caulk on the roof/sidewall seam. I have found the subject product and contacted Henkel who said it would work for that. before I drive 55 miles x2 tomorrow morning, h...
Forum Discussion
The gold standard urethane is pretty much 3M 5200 ( or 4200). I have no reason to not like OSI stuff, though, but I am unfamiliar with "acrylic urethane".
