ʻO ka polyethylene ultra-high-molecular-weight (UHMWPE, PE1000) kahi ʻāpana o ka polyethylene thermoplastic.loaʻa iā ia nā kaulahao lōʻihi loa, me ka nui o ka molekala ma waena o 3 a 9 miliona amu.ʻO ke kaulahao lōʻihi ka hoʻoili ʻana i ka ukana i ka iwi kuamoʻo polymer ma o ka hoʻoikaika ʻana i nā pilina molekala.Loaʻa kēia i kahi mea paʻakikī loa, me ka ikaika hopena kiʻekiʻe loa o kekahi thermoplastic i hana ʻia i kēia manawa.