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Polyethylene, Linear Medium Density (LMDPE)

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Medium Density Polyethylene (MDPE) is sometimes called linear medium density polyethylene because its backbone chemical structure is essentially linear due to the absence of long chain branching. It is produced in a low pressure rector and is defined as having a density between 0.930 and 0.940 g/cm3. MDPE offers a good balance of strength, stiffness, and toughness and is most often used for rotational molding. MDPE grades for rotational molding will normally contain additional anti-oxidants and UV stabilizers in their formulation. Common rotational molded applications include playground equipment, storage tanks, large bins, portable barriers, carts, toys and sporting goods.

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