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<p>of its high molecular weight, UHMWPE is very <a href="page.php?w=toughness">tough</a>.  The chains packs less efficiently as evidenced by densities of less than high-density polyethylene (for example, 0.930-0.935&nbsp;g/cm<sup>3</sup>). UHMWPE is made using <a href="page.php?w=Ziegler-Natta_catalyst">Ziegler-Natta catalyst</a>s and soluble <a href="page.php?w=coordination_polymerization">catalyst</a>s.   Because of its outstanding toughness and its cut, wear, and excellent chemical resistance, UHMWPE is used in a diverse range of applications.</p><p>
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