Unsaturated polyester resin o se tasi o resins thermosetting e masani ona faʻaaogaina ma faʻatinoga lelei.E mafai ona faʻamalolo i le vevela o le potu ma faʻapipiʻiina i lalo o le mamafa masani, faʻatasi ai ma le faʻaogaina o gaioiga faʻatinoga, aemaise lava le talafeagai mo le gaosiga tele ma luga ole nofoaga ole FRP oloa.A maeʻa le faʻamalolo, e lelei le faʻatinoga o le resini, o le faʻasologa o galuega faʻainisinia e laʻititi laʻititi nai lo le epoxy resin, ae sili atu nai lo resin phenolic.Tete'e a'a, mea tau eletise ma mumu e ala i le filifilia o le vasega talafeagai o resini e fetaui ma manaoga o le resini lanu malamalama, e mafai ona faia i oloa manino.E tele ituaiga, fa'apena lautele, ma o le tau e maualalo.