O le F-grade epoxy resin prepreg e faia i le polyester film polyester fiber e le o lalagaina mea malūlū ma fa'asusu i le epoxy resin vevela.E sui ai le epoxy fa'aulufale mai epoxy e le o lalagaina fa'aulufaleina resini e le o lalaga ie (HTEPP), e sili ona lelei le eletise, fa'afefe vevela, mumu, umi le teuina i le vevela o le potu, e mafai ona fa'aaogaina e pei o le fa'amamago-ituaiga transformer maualalo. -voltage coil interlayer insulation ma F-vasega Motor slot insulation ma vaega insulation.
