HDI closed Bassington BL-7982 Properties: BI 7982 is a closed aliphatic PU bridge agent for single component light stabilized baking coatings. BI 7982 is a trimer of HDI for coil coating and electrodeposition (ED) coating. Specification: Appearance : Transparent low viscosity liquid NCO content : 10.2% (calculated value) NCO equivalent weight ：410(calculated value) Viscosity @25℃ :...