Sashco 10020 10.5 oz. Ironstone Big Stretch-12PK LANC-156389

Premium window, door and siding sealant. the only latex-based, water-cleanup caulk that can span a 2 gap. Has incredible adhesion to most surfaces and is designed to stay elastic under the harshest conditions. Paintable. Lasts much longer than typical caulks and has a limited lifetime warranty.