Don’t miss the final critical step in the process: Tooling. “After laying down a line of caulk, you have to spread ... temperature is in the recommended window.” ...

Over time, the sealant around exterior doors and windows wears down ... Of course, there are ways to speed up the process, but generally, you don't want heavy rain, extreme heat, or moisture ...

Speaking of the product's lesser-known and often overlooked uses, the spray can even be used to the benefit of caulking guns. With a few quick sprays, WD-40 can get them cleaned up and working ...