Sikaflex vs Rv Flex - no difference?

[gidaeon]

So I've only used RV flex on rubber roof edges and was wondering if anyone has used BOTH RV Flex and Sikaflex 221 for vertical surfaces?


I'm guessing they are interchangeable competing products. I've read Sikaflex white yellows in less than a year but not my rv flex did too.

I just noticed Sikaflex is on amazon Prime shipped cheap for future haha

[chuckster57]

Sikaflex is an adhesive/sealant. I wouldn’t use it if your looking for a “maintance” product. Dicor also makes a non self leveling sealant for vertical serfucaes.