ʻO nā mea i hoʻopaʻa ʻia a pau he hydrolytically stable a kūpono me nā wai hoʻopiha maikaʻi maʻamau a pau, me ke kinoea piʻi kiʻekiʻe.Hoʻokumu ʻia ke koho ʻana i nā mea like ʻole, e pili ana i ka wela o lalo, ka paʻakikī, ka tensile a me ka waimaka ikaika, ka hoʻoheheʻe wai a me ke kinoea permeability, oxidation, a me ka abrasion a me ka pale kemika.