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

Arkema Kynar Flex 3121-50 Fluorinated Copolymer

Arkema Kynar Flex 3121-50 is a high-performance fluorinated copolymer offering exceptional flexibility, chemical resistance, and thermal stability up to 150°C. Designed for demanding wire & cable insulation and thin-wall tubing, it combines PVDF backbone durability with enhanced low-temperature toughness and melt-processability. This grade delivers superior abrasion resistance and UV stability versus standard PVDF resins.
  • arkema kynar flex 3121 50 fluorinated copolymer_4d137c9a
  • arkema kynar flex 3121 50 fluorinated copolymer_4d137c9a

Features Of Arkema Kynar Flex 3121-50 Fluorinated Copolymer

  1. Excellent flexibility and low-temperature impact resistance down to –40 °C

  2. Outstanding chemical resistance to acids, bases, solvents, and aggressive industrial fluids

  3. Superior UV and weathering stability with long-term retention of mechanical properties

  4. Low coefficient of friction and inherent non-stick surface characteristics

  5. Good melt processability via extrusion and injection molding without requiring plasticizers

Typical Applications Of Arkema Kynar Flex 3121-50 Fluorinated Copolymer

  1. Fuel and chemical transfer hoses for automotive and industrial systems

  2. Linings and coatings for corrosion-resistant tanks and piping

  3. Seals, gaskets, and diaphragms in aggressive chemical environments

  4. Wire and cable jacketing for aerospace and energy applications requiring flame retardancy and durability

  5. Flexible tubing for semiconductor process fluid handling

Specifications Of Arkema Kynar Flex 3121-50 Fluorinated Copolymer

Chemical TypeVinylidene fluoride (VDF)-based fluorinated copolymer
Product FormPellets
AppearanceOff-white to light tan, free-flowing granules
Primary ApplicationsFlexible tubing, hose reinforcement layers, chemical-resistant linings
Key FeaturesFlexibility, chemical inertness, thermal stability (–40 °C to +150 °C continuous)
BenefitsExtended service life in harsh environments, reduced maintenance, compliance with FDA 21 CFR 177.2510 for certain food-contact uses
Processing MethodExtrusion, injection molding, compression molding
Standards ComplianceMeets ASTM D2116 Type I; UL 94 V-0 (as molded, 1.6 mm)


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