Ultra-high-molecular-weight polyethylene (UHMWPE, PE1000) jẹ ipilẹ ti polyethylene thermoplastic.o ni awọn ẹwọn gigun pupọ, pẹlu iwọn molikula nigbagbogbo laarin 3 ati 9 million amu.Ẹwọn gigun naa n ṣiṣẹ lati gbe fifuye ni imunadoko si ẹhin ẹhin polymer nipa fikun awọn ibaraenisepo molikula inter molikula.Eyi ṣe abajade ohun elo ti o nira pupọ, pẹlu agbara ipa ti o ga julọ ti eyikeyi thermoplastic ti a ṣe lọwọlọwọ.