- Tight seal: the caulk saver forms a durable barrier against water, air and other elements, preventing leaks and drafts. It also functions as a gasket sealer and guards car door edges. - Flexible material: the rubber strip easily contours around edges and uneven surfaces, delivering a snug and reliable seal on every application. Suitable for driveway crack filling and concrete expansion joint strips. - Sealing performance: acting as a dependable shield against external factors, this caulking strip enables leak-proofing and draft exclusion for sustained protection. Also used as cement crack filler and concrete crack filler. - Wide compatibility: designed for a wide range of surfaces and applications, this rubber sealer provides a universally fitting solution for sealing needs, including car door trim and rubber rope. Use scenarios: - Weatherproofing vehicle doors, trunks and trims to block drafts and moisture. - Sealing and filling cracks in driveways and concrete expansion joints to prevent water intrusion. - Repairing cement or concrete cracks in walls, floors or edging to reduce leakage and protect exposed edges.