Type aliphatic polyisocyanate (hexamethylene diisocyanate trimer) Form of Supply about90%Butyl acetate/100Solvent naphtha Oil (1:1) solution Purpose used as light-resistant polyurethane coating curing agent combination   Product Specifications Features Value Measurement unit Method NCOcontent 19.6±0.3 % DIN EN ISO 11909   Method Viscosity@25℃ about500 mPa.s DIN EN ISO 3219/A.3 equivalent about214     Flashpoint about50℃  ...