DESMODUR N3400

DESMODUR N3400 is an aliphatic polyisocyanate hardener that provides excellent lightfastness and durability properties. It is used as a reactive thinner or hardener component for two-component polyurethane coatings systems. DESMODUR N3400 offers good compatibility with various polyols and solvents, allowing for customized formulations. Its low viscosity also makes it suitable for one-component moisture-cured coatings. When used in coating formulations, DESMODUR N3400 helps deliver long-lasting, UV-resistant finishes suitable for demanding exterior applications. Its lightfast properties prevent premature degradation of coated surfaces due to sun exposure. Coatings incorporating DESMODUR N3400 provide protective, aesthetically pleasing layers for building envelopes and infrastructure with extended lifetime and reduced maintenance needs.