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

Arkema Kynar Flex 2821 Fluorinated Copolymer

Arkema Kynar Flex 2821 is a high-performance fluorinated copolymer from the Kynar Flex series offering exceptional flexibility elasticity and chemical resistance at low temperatures. Designed for demanding extrusion and molding applications it combines PVDF backbone durability with enhanced melt processability and toughness. Widely used in fluid handling tubing wire coating and specialty membranes where reliability under stress and aggressive environments is critical.
  • arkema kynar flex 2821 fluorinated copolymer_bdd4fd20
  • arkema kynar flex 2821 fluorinated copolymer_bdd4fd20

Features Of Arkema Kynar Flex 2821 Fluorinated Copolymer

  1. Excellent low-temperature flexibility down to –40 °C with retained mechanical integrity.

  2. Outstanding resistance to UV radiation, oxidation, and harsh environmental aging.

  3. Superior chemical resistance to acids, bases, solvents, and hydrocarbons.

  4. Good melt processability via extrusion and injection molding without degradation.

  5. Low dielectric constant and dissipation factor for high-frequency electrical insulation.

Typical Applications Of Arkema Kynar Flex 2821 Fluorinated Copolymer

  1. Aerospace wire and cable insulation for avionics and engine compartments.

  2. Automotive fuel system components including vapor recovery lines and sensor housings.

  3. Industrial fluid handling tubing for aggressive chemical transfer in semiconductor and pharmaceutical equipment.

  4. High-reliability flexible connectors and seals in oil & gas downhole instrumentation.

Specifications Of Arkema Kynar Flex 2821 Fluorinated Copolymer

Chemical TypeVinylidene fluoride (VDF)-based fluorinated copolymer
Product FormPellets
AppearanceOff-white to light tan granules
Primary ApplicationsFlexible insulation, chemical-resistant tubing, dynamic seals
Key FeaturesLow-temperature flexibility, weathering resistance, melt-processable
BenefitsExtended service life in cyclic thermal/mechanical stress environments
Processing MethodExtrusion, injection molding, compression molding


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