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All Categories > Fluoropolymer Engineered Products > item-1006  

UltraFlex™ Elastomer

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Kynar UltraFlex™ is an elastomeric material based on Arkema's proven PVDF (polyvinylidene fluoride) resin. This unique fluoropolymer exhibits exceptional resistance to chemicals, ozone, ultraviolet light, radiation and moisture. Molding is very similar to many fluoroelastomers without the use of curing agents and molding time is significantly reduced. Post-curing of molded parts improves mechanical properties and chemical resistance.

PVDF Elastomers
  • Clear Elastomeric Fluoropolymer
  • Not Affected by UV or Radiation
  • Weatherable
  • Water Repellent
  • Broad Chemical Resistance
  • No Curing or Cross-Linking Agents
  • No Shelf Life for Feed Stock
All Values for reference only, not to be used for specifications.

KYNAR ULTRAFLEX™ Elastomer is a clear elastomeric fluoropolymer that resists chemicals, ozone. UV rays, radiation and moisture.

Specifications  · Chemical Resistance  · Note


Durometer Hardness

55 Shore A


15 Firmness Rating Scale

Tensile Strength

825 lb/in²


730 %

Specific Gravity

1.78 g/cc


111 lb/ft³

Minimum Temperature

-15 ºF

Maximum Temperature

420 ºF

Compression Set @ 70 ºF

16 %

Compression Set @ 150 ºF

24 %

Compression Set @ 250 ºF

31 %

Compression Set @ 400 ºF

35 %



Chemical Resistance
Kynar® resins demonstrate excellent resistance to an extensive array of chemicals. They resist attack from most inorganic acids and alkalis, aliphatic and aromatic hydrocarbons, organic acids, alcohols and halogenated solvents. However, strong alkalis (i.e. pH >12) and strong polar solvents such as acetone, ethyl acetate, dimethylformamide and dimethylacetamide can impede the effectiveness of Kynar® resins.

For information on your application, please contact the exclusive fabricator of KYNAR ULTRAFLEX™ elastomers:

The statements, technical information and recommendations contained herein are believed to be accurate as of the time of printing. No warrantee of fitness for any purpose, or any other warrantee either expressed or implied, is made concerning the materials described herein. The user must thoroughly test the product prior to commercialization. No information provided can be used to develop patents, and the user is advised to take the appropriate steps to assure that this product will not result in patent infringement.


UltraFlex™ Elastomer Brochure
(PDF, 307KB)

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