Quasilan CT 29 is a low viscosity moisture curing polyurethane prepolymer based on toluene diisocyanate. Quasilan CT 29 is designed for applications in surface coating and binding on substrates such as stone, concrete and jointing sand. Quasilan CT 29 penetrates the substrate and joints to give a flexible film which gives improved chemical resistance, abrasion, erosion and traffic wear performance. Quasilan CT 29 may also be used in other application areas eg as a primer for sealants. It can be brush, roller or spray applied.