Technical datasheet

TAFMER™ A-4085S

Supplied byMitsui Chemicals- Last Updated on Aug 6, 2025

TAFMER™ A-4085S by Mitsui Chemicals is a specialty, ethylene-based a-olefin elastomer (TPO) grade. Provides high speed packing, low crystallinity, transparency, low glass transition temperature and low temperature impact resistance.
  • Exhibits low melting point, low heat seal initiation temperature, low young's modulus, softness and flexibility.
  • Shows low specific gravity, insolubility in water, elasticity, good filler containability, foamability and crosslinkability.
  • Is miscible with polyethylene (PE) and compatible with polypropylene (PP) for adhesion strength control.
  • TAFMER™ A-4085S is suitable for processing by blown film and coating extrusion.
  • Used in blown PE sealant layers.
  • Meets FDA title 21, parts 170 to 189, FCN (food contact notification), EU Directive 2002/72/EC and its amendment 2008/39/EC.
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TAFMER™ A-4085S properties

Flammability properties

PropertiesValue & unitTest conditionTest method
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Mechanical properties

PropertiesValue & unitTest conditionTest method
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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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