EnviroLastic JS 80 is a polyurea control joint and crack filler. The chemistry provides a rapid cure in temperatures well below freezing. The process of installation is similar to other joint sealants but allows the contractor and facility owner to place the area back in service within hours. Envirolastic JS 80 is constructed to support traffic and maintain flexibility. All polyurea formulations can be applied and cure at sub zero temperatures. Unlike polyurethane products, polyurea is not sensitive to moisture during application and cure.