Friends, I need your recommendation of an appropriate sealant for a 3/8" hole I had to drill to install a rear view camera. Trouble is, DAP and 3M don't make one that can be applied in cold weather. I have called both companies who have confirmed this fact. They need 60 degrees plus with a few days to properly cure. I don't have that luxury. Daytime highs are mid 40s that drops to 20 and below at night. Looks like Loctite Tite Foam or Clear Silicone Waterproof Sealant might be an alternative, but I'd like to check with you more knowledgeable folks to ensure I'm not missing something else.