CORONATE HXR and HX is a hardener for non—yellowing polycarbonate paints, which has excellent properties compared to the polyurethane or adduct-type hardeners CORONATE HXR and HX, widely used in the paint industry for various applications such as repainting motorcycle and automobile parts. This is due to its resistance to high temperatures, high salt in solvents, and impurities in water. The combination of CORONATE HXR and HX with acrylic polyols gives a non-yellowing paint with excellent resistance to weathering and UV rays, so that its original color can be preserved for a long time. This two-component type of paint is used for car repairs, industrial purposes, etc. The combination of CORONATE HXR and HX with alkyd polyols gives a two-component paint that is used for industrial purposes, for wood finishing, etc. The addition of CORONATE HXR and Hx to some nitrocellulose or polyurethane-based paints significantly improves their physical properties, such as chemical resistance to solvents. Made in Japan