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A General Purpose Sponge and Tire Polymer

Polymer Name: Ethylene Propylene Diene Terpolymer (EPDM)

Processing Methods: Extrusion, Injection Molding, Profile Extrusion

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Knowde Enhanced TDS

Identification & Functionality

Technologies

Features & Benefits

Unique Features
  • High unsaturation - Ultra fast cure rate
  • Medium range plasticity allows for use in both extrusion and molding applications
  • Co-cures well with SBR and NR
  • Non-staining
  • Excellent low temperature properties and weathering resistance
  • Mixes quickly in internal mixers with excellent dispersion

Applications & Uses

Plastics & Elastomers Processing Methods
Applications
  • Closed cell sponge profile extrusions
  • Closed cell sheet sponge
  • Automotive closed cell sponge molded weatherstrip assembly corners 
  • Molded open cell sponge
  • Tire components, such as coverstrips, white sidewalls and black sidewalls, in blends with diene polymers

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
ENB Content8wt %ZS 1222
Ethylene/Propylene60/40w/wZS 1231
Molecular Weight DistributionNarrowZS 1296A
Mooney Viscosity (Unmilled)55ML (1+4)/125°CZBS 1220B
Specific Gravity0.86g/cc.ASTM D-792
Volatile Matter0.7wt %ZS 1008K
Additional Information
ValueUnitsTest Method / Conditions
StabilizerNon-staining

Regulatory & Compliance

Certifications & Compliance