Used 75 tubes for the facade of my house. Trust me when I tell you with certainty it's shrinking. Because it flickers everywhere. Climate of the San Francisco Bay Area. You have to redo the whole house. This after only one year. A year. That's all. yes you can paint And it's made of silicone. That's why I used it. And it's from GE. It seems safe. It was necessary to use what my professional painter with 15 years of experience recommended. Shame on you GE silicone sealant.