Coronate is Nippon Polyurethane's brand of solvent-free hexamethylene diisocyanate based polyisocyanates, containing isocyanurate (HDI trimer). They are hardeners designed to be used to produce non-yellowing polyurethane paints. These products have superior performance compared with biuret or adducts of HDI. These products are widely accepted in the paint industry for various applications including: general industrial coatings, automotive refinishing, wood finishes, etc. These products offer high resistance to heat, have high solubility in solvents and have good compatibility with polyols.