Cycloaliphatic Polyisocyanate based on isophorone diisocyanate (IPDI).
Comprises an isocyanurate ring and a NCO-functionality of 3-4. Improves drying speed and surface hardness of 2 K PUR coatings. VESTANAT® T 1890 L is supplied in a mixture of butyl acetate/solvent naphtha.