ʻO ka resin polyester unsaturated kekahi o nā resins thermosetting maʻamau me ka hana maikaʻi loa.Hiki ke ho'ōla ma ka lumi wela a hoʻoheheʻe ʻia ma lalo o ke kaomi maʻamau, me ka hana maʻalahi o ke kaʻina hana, ʻoi aku ka kūpono no ka hana nui a me ka paena o nā huahana FRP.Ma hope o ka ho'ōla ʻana, maikaʻi ka hana holoʻokoʻa o ka resin, ʻoi aku ka haʻahaʻa o ka index hana mechanical ma mua o ka resin epoxy, akā ʻoi aku ka maikaʻi ma mua o ka resin phenolic.ʻO ka pale ʻana o ka corrosion, nā waiwai uila a me ka pale ahi ma ke koho ʻana i ka pae kūpono o ka resin e hoʻokō i nā koi o ke kala māmā resin, hiki ke hana ʻia i nā huahana akaka.Nui nā ʻano like ʻole, hoʻololi nui ʻia, a haʻahaʻa ke kumukūʻai.