LePage Quad Sealant - Outdoor Caulk for Window, Door & Siding, Permanently Flexible, Water & UV Resistant - 295 ml Cartridge, 1 Pack

Good quality.

I bought this in Oct 2024 to seal some asphalt shingles against aluminum siding because of a roof leak. I found it thick and hard to squeeze out of a regular Amazon Basics caulking gun but it worked. The half I didn't use was sealed with a plug of hot melt glue. Fast forward to May 2025 and there were more roof leaks to repair. Luckily, the sealant was still usable after months of sitting in my basement, but only after some deep stabbing with a long eavestrough spike through the nozzle. This time I heated it up beforehand on the driveway during a sunny day, and it was easier to push out. It's impossible to tool so I didn't bother trying since my roof is steep and I needed my hands to keep me safe.

Applied it several months ago to the outside windows and doors. It was easy to apply cleanly, and so far it is holding up nicely even now with the weather being to cold.

Good stuff for outdoor and indoor. Easy to apply.

Takes a little longer to dry than others, but very strong once it has.