WITCOBOND W-281F is an aqueous polyurethane dispersion with no free isocyanate. It provides excellent adhesion, flexibility and durability. WITCOBOND W-281F offers long-term protection against weathering for building materials due to its aliphatic polyurethane chemistry. It forms a tough, flexible and water resistant film on drying. WITCOBOND W-281F is ideally suited for water-based coatings and sealants applications where outstanding mechanical properties and chemical resistance is required. It can be used in water-based primers, coatings and sealants. WITCOBOND W-281F meets stringent industry standards for low VOC and is suitable for applications where low odor and environmental friendliness is important.