HE421S is a standard bisphenol A epoxy acrylate resin.Iyo ine hunhu hwekupenya kwepamusoro, kuomarara kwepamusoro, uye nekukurumidza kurapa kukurumidza, izvondeimwe yeakakosha resin mumunda weUV.Inonyanya kushandiswa munzvimbo dzakasiyana-siyana dzekuputira UV dzakadai se electroplating bottoms, mapurasitiki epurasitiki, ingi, uye kudhinda.