Iresin yepolyester engafakwanga yenye yezona zinto zisetyenziswa ngokuqhelekileyo i-thermosetting resin enenkqubo egqwesileyo yokusebenza. Iyakwazi ukunyangwa kwiqondo lokushisa legumbi kwaye ibunjwe phantsi koxinzelelo oluqhelekileyo, kunye nokusebenza kwenkqubo eguquguqukayo, ngokukodwa ifanelekileyo kwimveliso enkulu kunye ne-site yeemveliso ze-FRP. Emva kokunyanga, i-resin inokusebenza kakuhle ngokubanzi, isalathisi sokusebenza koomatshini singaphantsi kancinane kune-epoxy resin, kodwa ingcono kune-phenolic resin. Ukumelana nokubola, iipropati zombane kunye ne-flame retardant ngokukhetha ibakala elifanelekileyo le-resin ukuhlangabezana neemfuno zombala wokukhanya we-resin, unokwenziwa kwiimveliso ezicacileyo. Kukho iintlobo ezininzi, ezilungiselelwe ngokubanzi, kwaye ixabiso liphantsi.