Technical datasheet

TAFMER™ DF840

Supplied byMitsui Chemicals- Last Updated on Aug 6, 2025

TAFMER™ DF840 by Mitsui Chemicals is a specialty, ethylene-based alpha-olefin elastomer (TPO) grade. It is insoluble in water and possesses low melting point, softness, elasticity and transparency.
  • Exhibits surface gloss, low specific gravity and good impact resistance at low temperatures.
  • Provides good filler containability, foamability, paintability and crosslinkability.
  • Shows PE miscibility and PP compatibility.
  • TAFMER™ DF840 is suitable for processing by injection molding.
  • Used in automotive bumpers and instrumental panels.
  • Meets FDA title 21, parts 170 to 189, FCN (food contact notification) and EU Directive 2002/72/EC.
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TAFMER™ DF840 properties

Flammability properties

PropertiesValue & unitTest conditionTest method
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Mechanical properties

PropertiesValue & unitTest conditionTest method
Clash-Berg Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
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Tensile Strength at Break0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
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Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
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Melting Point0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login

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