Specialty polymers for medical device manufacturing
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Kynar® PVDF

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Kynar® PVDF

Unlike other fluoropolymers, Kynar® has high tensile strength and excellent resistance to permeation and radiation.

With over 20 years of experience as a material of construction, Kynar® PVDF resins have been used in critical fluid contact applications for the food, beverage, pharmaceutical and semiconductor industries.

Kynar® provides all the characteristics you expect from fluoropolymers including excellent chemical resistance, high purity, high thermal stability and non-stick surface. Unlike other fluoropolymers, Kynar® has high tensile strength and excellent resistance to permeation and radiation. A large processing window allows Kynar® to be injection-molded or extruded into clear, flexible films and tubing that are easily heat-sealed.

Key attributes of Kynar®:

  • USP class VI material
  • Easily processed on conventional equipment
  • High tensile strength
  • Abrasion resistant
  • Gamma sterilizable according to ANSI/AAMI/ISO 11137 procedures
  • Autoclavable - temperature resistance up to 150 deg C (300 F)
  • Chemical Resistance of a fluoropolymer
  • Bio-Inert
  • Non-stick surface
  • Ultra low extractables and leachables (in the ppb range)
  • No additives or processing aids
  • No animal derivatives

 

Available Medical Grades:
Copolymer Series

Kynar Superflex® 2500-20 is a pelletized, semi-crystalline copolymer designed for applications requiring high flexibility. Kynar Superflex®  2500-20 is often used for chemical tubing, wire jacketing, and injection molding.

Kynar Flex® 2800-00 is a pelletized, semi-crystalline VF2 based copolymer. Kynar Flex®  2800-00 has been specifically designed for use in wire and cable constructions and other uses requiring high flexibility and improved resistance to impact. For chemical applications, it can be extruded into sheets and tubing. Kynar Flex®  2800-00 can also be injection molded.

Kynar Rx® 752 is a pelletized, semi-crystalline based copolymer made of vinylidene fluoride and hexafluoropropylene. It is a versatile engineering plastic with an outstanding balance of physical and chemical properties, which qualify it for high performance service in a wide range of applications for the biopharmaceutical and medical device industries.

Kynar Rx® 752 has an ultra low extractables profile and an array of biocompatibility approvals. The high flexibility and low melt viscosity makes this material ideal for injection molding and multilayer constructions for films and tubing. Therefore, it is possible to design an entire single use system with a single contact material.

Homopolymer Series

Kynar® 1000 HD is a semi-crystalline medium-high molecular weight pelletized polymer of vinylidene fluoride. It is a versatile engineering plastic with an outstanding balance of physical and chemical properties which qualify it for high performance service in a wide range of applications. It is a thermoplastic fluoropolymer capable of being fabricated in standard processing equipment. The molecular weight and molecular weight distribution have been carefully tailored to supply grades suitable for a variety of processing requirements and end-use applications. Kynar® 1000 HD is appropriate for use in most extrusion applications.

KYNAR® 720 is a semi-crystalline low molecular weight pelletized polymer of vinylidene fluoride. It is a versatile engineering plastic with an outstanding balance of physical and chemical properties which qualify it for high performance service in a wide range of applications. It is a thermoplastic fluoropolymer capable of being fabricated in standard processing equipment. The molecular weight and molecular weight distribution have been carefully tailored to supply a grade suitable for a variety of processing requirements and end-use applications.

KYNAR® 720 is recommended for fine extrusion operations such as monofilament and thin, flat, and blown film. It is also suitable for injection molding applications where very thin cross-sections for intricate design require excellent melt flow characteristics. KYNAR® 720 is also suggested for coextrusion of composite constructions and as a base for filled or alloyed KYNAR® compounds.

 

Literature for Kynar® PVDF