Polyamide 11

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Polyamide 11 (PA 11) or Nylon 11 is a polyamide bioplastic derived from vegetable oil. It is produced by Arkema under the tradename Rilsan from castor beans.[1] PA 11 is not biodegradable.

Its properties are similar to PA12, although it has a lower environmental impact, consumes less non-renewable resources to be produced and has superior thermal resistance. It is weaker but more resilient than the most common types of Nylon (6 and 6/6).[2] It is used in high-performance applications such as automotive fuel lines, pneumatic airbrake tubing, electrical anti-termite cable sheathing, oil and gas flexible pipes and control fluid umbilicals, sports shoes, electronic device components, and catheters.


  1. ^ Rilsan Polyamide 11 and 12, accessed September 12, 2008.
  2. ^ Compare Materials: Nylon (PA) and Nylon 11