I-E-Glasi fiber yarn i-twist zizinto zokuthambisa zombane, amalaphu emizi-mveliso kunye nezinye iindwangu zokusetyenziswa kwezamashishini ngezinto ezingafunekiyo, i-cable, iindidi zezixhobo zombane zefayili zombane. Owona msebenzi uphambili kukuqina koxinzelelo lwentambo, nxiba ukuxhathisa, kunye namandla aphezulu e-winsi, amandla obunxunguphalo, ukuxhaphaza kombane, ukuchasana nobushushu obuphezulu, ukunganyangeki kobushushu obuphezulu, ukunganyangeki kobushushu obuphezulu. Umgca wokulinganisa usebenzisa i-starching esekwe kwi-starching engenasithuba sokungena kunye nokusetyenziswa komdlalo ophuculweyo.
Imisonto ye-fiberglass iba nenani elichaziweyo le-e-glassings yedayinti ethile engalunganga, ehlanganisene ukuba ibe yi-yarn. Ubume be-yarn buhleliwe kwaye bakhuselwe ubungakanani kwaye i-twist encinci, ngokubanzi kwi-Z-indlela.