7145 CrownCaulk™ Polyurea Joint Sealant

7145 CrownCaulk is a two-component, 100% solids, self-leveling, modified polyurea elastomeric joint sealant engineered to provide durable, flexible sealing of concrete joints subject to movement. Its elastomeric formulation accommodates joint movement of up to ±25% of the installed joint width while maintaining a resilient, continuous seal. Designed for effective joint protection, 7145 CrownCaulk helps prevent the intrusion of moisture, debris, and contaminants while accommodating normal substrate expansion and contraction. For optimal installation performance, concrete should be allowed to cure for a minimum of 28 days before sealant application.