Quikrete concrete crack seal is a high-performance, construction-standard polyurethane sealant. Quikrete sealer is a solvent made of an isocyanate-free, commercial-grade material. One of the best traits about this concrete sealer is that it helps prevent water and ice damage. This concrete crack sealant seals surfaces with a textured matte finish. Quikrete sealant is designed to deliver or exceed the performance of traditional polyurethane or silicone sealants and adhesives. The single-component Quikrete concrete sealant is an environmentally-friendly alternative that meets meet ASTM C920 standards. Quikrete concrete sealer boasts an excellent adhesion capability. Use this sealant with a non-sag formula to get rid of cracks forever. Quikrete crack seal gets tack-free in 60 minutes. Get this crack sealant that dries to a durable and flexible finish. Easy to use, this concrete sealer is ideal for vertical or horizontal applications. Use this Quikrete sealant that permanently seals and waterproofs cracks in concrete, masonry, and stucco surfaces.