DAP EXTREME STRETCH is a premium urethanized sealant ideal for sealing a wide variety of interior & exterior surfaces. EXTREME STRETCH stretches over 600% and provides superior adhesion for a long lasting crackproof seal. Its unique formula is easy to apply & tool, low in odor & cleans up easily with water. Perfect for most sealing projects including windows, doors, trim, molding, siding, gutters, flashing, sinks, and countertops