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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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Mitsui TPX® DX820 Methylpentene Copolymer

Technical Datasheet | Supplied by Mitsui Chemicals
TPX® is a 4-methylpentene-1 based polyolefin with a unique combination of transparency, heat and chemical resistant qualities. TPX is used in a wide variety of applications, including: medical equipment, laboratory ware, small appliances, ovenware, baking cartons, release paper, wire and cable coating, and a number of industrial uses. TPX is manufactured and marketed solely by Mitsui Chemicals, Inc.Applications: Injection Molded Items: Blood test cellsMedical instrumentsLaboratory wareCoffee maker partsCosmetic containersExtrusion Molded Items: Sight glass (pipes, sheets)Baking cartons (food containers)Release paperWire and cable coatingFilmsMolding Method: Paper coatingInformation provided by Mitsui.
Product Type
PMP (Polymethylpentene) > PMP
Product Status

Mitsui TPX® DX820 Methylpentene Copolymer Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Water Absorption
0.01 %
24 hours; ASTM D570
0.833 g/cm³
ASTM D1505
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
180 g/10 min
(@Temperature 260 °C)
ASTM D 1238
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