HE421S waa bisphenol caadiga ah A epoxy acrylate resin.Waxay leedahay sifooyin dhaldhalaalka sare, adkaanta sare, iyo xawaaraha bogsashada degdegga ah, kaaswaa mid ka mid ah resins aasaasiga ah ee beerta UV.Waxaa inta badan loo isticmaalaa meelo kala duwan oo daahan UV sida hoose ee korantada, daahan caag ah, khad, iyo daabacaadda.