Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Arkema Kynar Flex 2821 Polymer Processing Additive

Arkema Kynar Flex 2821 is a high-performance fluoropolymer processing additive from the Kynar Flex series, designed to enhance melt flow and reduce extrusion defects in PVC and engineering thermoplastics. This specialty polymer improves surface finish, lowers die buildup, and boosts throughput without compromising mechanical properties—ideal for demanding wire, cable, and profile applications.
  • arkema kynar flex 2821 polymer processing additive_eb2c1544
  • arkema kynar flex 2821 polymer processing additive_eb2c1544

Features Of Arkema Kynar Flex 2821 Polymer Processing Additive

  1. Enhances melt flow and extrudability of high-viscosity fluoropolymers without compromising thermal or chemical resistance.

  2. Reduces die build-up and surface defects (e.g., melt fracture, shark skin) during high-speed extrusion and calendering.

  3. Enables stable processing at lower torque and energy input, improving equipment throughput and operational efficiency.

  4. Compatible with polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), and ethylene-chlorotrifluoroethylene (ECTFE) resins.

  5. Non-migrating additive that maintains long-term performance stability in finished parts under demanding service conditions.

Typical Applications Of Arkema Kynar Flex 2821 Polymer Processing Additive

  1. Wire & cable insulation and jacketing for aerospace, automotive, and industrial control applications.

  2. Chemical-resistant linings and sheets for tanks, pipes, and valves in corrosion-prone environments.

  3. Extruded fluoropolymer profiles used in semiconductor manufacturing equipment components.

  4. High-purity tubing and membranes for pharmaceutical and ultra-pure water systems.

  5. Coated fabrics and laminates requiring exceptional weatherability and low surface energy.

Specifications Of Arkema Kynar Flex 2821 Polymer Processing Additive

Chemical TypeFluorinated ethylene-propylene (FEP)-based polymer processing aid
Product FormPellets
AppearanceOff-white to light tan free-flowing pellets
Primary ApplicationsMelt processing aid for fluoropolymers (PVDF, PTFE, ECTFE)
Key FeaturesLow-migration, thermally stable, non-plasticizing
BenefitsImproved extrusion output, reduced surface defects, extended die cleaning intervals
Processing Temperature Range200–320 °C (recommended for continuous operation)
Storage ConditionsStore in original sealed packaging at ambient temperature; protect from moisture and direct sunlight


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