I-HE421F yi-oligomer ye-epoxy acrylate. Inesantya sokunyanga ngokukhawuleza, ukuxhathisa okulungileyo komthubi, kunye neendleko ezisebenzayo kwi-UV / EB enyangekayo, ukusetyenziswa kwe-inki. I-HE421F ingasetyenziswa kwiintlobo ngeentlobo zesubstrates, kubandakanywa iiplastiki, isinyithi, kunye neenkuni.