Roof Coating Containers - Sitting in the Hot Sun


I don’t think it will be a issue for the short period of time

If I have a can of Alum Coating (Karnack 298) that is 95% full sitting on the roof - for let’s say 2 weeks, any issues with the solvent gassing out. Granted there is a gasket on the lid and it’s nice and tight.

I currently just left it on the roof, and plan to use it in about 2 weeks time.

Yay or nay ?


You should be ok. When you open it up you will know.


LOL. Heh. I don’t want to open it up and all I have is a hard mass of flake :wink:


It was a hot one today - 90+

Hvacs are buttoning up this weekend
Plan to 2nd coat the roof once they are done.
Hoping it’s not a can of just alum flakes and no solvent…