Yellow pipes of an oil rig extending into the sea.

Extreme materials for extreme environments

The flexible tubes used for the transportation of oil and gas are under enormous physical and chemical stress. With Kynar® polyvinylidene fluoride (PVDF), Kepstan® PEKK, and Rilsan® and Rilsan® Fine Powders biosourced polyamides (PA), the Arkema group provides a wide range of solutions to protect them against corrosion, chemical attacks and aging. These high performance polymers are also routinely used for coating pipes and flexible tubes in oil and gas installations. In these conditions, they are subject to extreme pressure and fluid constraints.

Review the Various Offshore Applications of Kynar® PVDF, Rilsan® Resins and Rilsan® Fine Powders

pin Onshore

Offshore Seismic Acquisition

Seismic acquisition cables towed by a ship at sea.

Rilsan® Polyamides have truly outstanding qualities for the harsh conditions in which seismic acquisition cables operate. Rilsan® PA11 shows high dimensional stability and creep resistance, as well as tremendous resistance to seawater and strong abrasion resistance. In addition, its compatibility with other materials including fiber optics, extruded foams, and sensitive electronic equipment make it ideal for seismic acquisition applications. 


Recommendations for Seismic Acquisition Cables:

  • Flexible Rilsan® PA11 is the recommended solution for most offshore seismic acquisition cables 
  • Other solutions include Rilsamid® PA12 grades

Choke & Kill Lines

Red and yellow blow out protector on an offshore Oil Rig.

Rilsan® PA11, Kepstan® PEKK, and Kynar® PVDF chemical and heat resistance properties enable them to be used as liners in the high pressure lines used in offshore choke & kill systems. 


For grade information contact an Arkema Technical Representative about PA11, PEKK and PVDF Heat Stabilized Extrusion Grade materials for Choke and Kill line applications. 

Flexible Flowlines

When operating in harsh environments where maintenance can be very expensive, Oil and Gas companies require materials that can hold up to high temperatures and harsh chemicals. Rilsan® PA11, Kepstan® PEKK composites, and Kynar® PVDF have a high resistance to hydrocarbons and other blends of gasses/liquids, and retain their dynamic properties while operating at high temperatures for up to 30 years.


An extreme world needs extreme materials.

Tensile Modulus vs. Temperature for Various Kynar® Grades


Graph showing the tensile Modulus vs. Temperature for various Kynar® Grades.
Multi-layered pipe with steel and Kynar® layers
Offshore multi-layered pipe with Rilsan® layers.

Flexible Risers

Flexible Risers are subject to the extreme abuses of the ocean including varying temperatures, shifting tides, and harsh salt water. Rilsan® PA11. Kepstan® PEKK Composities, and Kynar® PVDF hold up extremely well given their inert nature which creates stability in their physical properties over long periods of time. 

Flexural Creep of a Select Kynar® Homopolymer Resin at High Stresses as a Function of Time + Temperature


Flexural Creep of a select Kynar® resin at high stresses.


Rilsan® PA11 TLO is a special material which provides an ultra-low oligomer solution able to provide stable performance over a long period of time. 


The low permeation found in Kynar® PVDF, makes it an extremely useful material for offshore umbilicals. The resistance to multiple chemicals provides ease of process when creating umbilicals designed to be in contact with various fluids. 

Chemical Resistance of Kynar® Homopolymer Resin vs. Other Well-Known Plastics at 93C


Kynar® Homopolymer Resin Chemical Resistance Graph
Umbilical cable with Rilsan® tubes

Wire and Cable

Downhole wire and cable for the Offshore Oil & Gas market

Kynar Flex® PVDF is an extreme material that can hold up to the demanding conditions that downhole wire & cables are subject to. Its resistance to harsh chemicals and heat make it useable in numerous applications including electrical downhole cable, fiber optic downhole cable and hybrid electric/fiber cable. Its compatibility with the many different types of materials, pressures, and temperatures make it a choice that brings ease of process when manufacturing and installing the cables.  

Oil & Gas producers demand a product that can be relied on. With decades of trusted use in oil & gas wells around the world Kynar Flex® PVDF is considered a preferred solution for downhole applications. 

Kepstan® PEKK offers outstanding protection for wire and cable exposed to extremely harsh conditions often seen in oil and gas. With ultra-high temperature capabilities, consistent isolative properties, and outstanding barrier properties against harsh chemicals like H2S, Kepstan® PEKK is an ideal material for protecting wire and cable in demanding applications like submersible pumps and other wire and cable applications in oil and gas.

Seals and Backup Rings

With ultra-high mechanical properties, extreme temperature capabilities, and outstanding chemical inertness; Kepstan® PEKK is an ideal material for seals and backup rings in demanding oil and gas applications.


Kepstan® PEKK maintains an excellent compressive modulus even at elevated temperatures, and offers excellent barrier properties against aggressive chemicals like H2S and Methane.


Powered by high performance 3D printing, Kepstan® PEKK can be 3D printed to form seals and other geometries for oil and gas applications as well, allowing for rapid production of parts on demand and more efficient use of material.

Reinforced Thermoplastic Pipe

Composite Pipe depiction

The light weight and flexibility of reinforced thermoplastic pipes made from Rilsan® PA11, Kepstan® PEKK, and Kynar® PVDF allow for Oil & Gas customers to deliver the pipes in rolls, which allow for quicker and easier installations. 


Key Benefits:

  • Compatibility with aramid fibers 
  • Flexibility 
  • Lightweight 
  • Lower cost installation
  • Resistance to harsh chemicals
  • Resistance to high and low temperatures

Download and View our Oil & Gas Brochures

Offshore oil rig against a setting sun
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