isn't the only all molded towble manufacturer to use it. Casita
uses it by the boatload. All I can say is it's cheap and typically provides a leak-free environment during the time of warranty. But as an asset OWNER, we're all looking for something that works longer term. The biggest problem is folks who blob more silicone over the top of old silicone and that can turn a temporary solution into a permanent problem.
As an aside, my 1988 16' Scamp
doesn't have silicone skimming the windows
from the factory and I'm GLAD.