hdi trimer hx-100   about chemical characterization: hdi based modified polyisocyanate, containing isocyanurate form: non-solvent, 100% of solid content. uses: hardener for two-component, non-yellowing type of polyurethane paint with excellentweathering ability.  characteristics: coronate-hx appearance pale yellow liquid nco content (%) 20.5-22.0 solid content (%) 100 viscosity 25°c (gardner no.)(mpa.s) x – z21,290 – 3,620 color  (gardner no.)...