Originally Posted by Lubert
I'm looking for something to use to seal my roof leaks before I paint! (:
We used Sikaflex 221 to seal every seam, and a blob over every single rivet on the roof. I think it took like 8 or 9 tubes for our 11 window bus. No leaks, and it blended in pretty well with the off white color of the roof. It's sandable and paintable, but you don't need to sand it you just need to smooth it with a wet, gloved finger. We've used Dynatron 550 too, but it's a little pricier. Works good too and also smears pretty well with a wet, gloved finger.