DESMODUR ULTRA Z 4470 BA is an aliphatic polyisocyanate hardener component used primarily for developing lightfast two-component polyurethane coatings. It offers high resistance to chemicals and weathering, very good gloss retention and outstanding mechanical properties ideal for exterior applications. DESMODUR ULTRA Z 4470 BA when mixed with flexibilised polyols results in coatings with excellent durability suitable for protecting infrastructure from environmental degradation. Its physical drying properties also make it suitable as an additive resin for fast-drying spray coatings used in industrial surface protection. DESMODUR ULTRA Z 4470 BA delivers long-lasting performance and protection in demanding exterior conditions through its specialized molecular structure and reactivity profile.