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The basic PPO polymer produced by the coupling of phenolic monomers was patented in 1964 by General Electric Plastics who introduced modified forms as the Noryl® range in 1966. Raw PPO was expensive and difficult to process but blending with polymers such as polystyrene gave an acceptable balance of properties. Most references to PPO refer to such blended polymer products.

PPO thermoplastics offer properties between common thermoplastic polymers and higher engineering types. e.g. polycarbonates. PPO can be moulded by a range of processes such as injection. extrusion and extrusion blow moulding. thermoforming and foaming. Ease of electroplating. painting and welding add to a wide range of applications.

PPO products are characterised by exceptional moisture resistance. high dimensional and thermal stabilities. good flame resistance and high electrical resistance properties. Noryl® is attacked by petroleum products. so knowing the environment which the Noryl part will be exposed to is vital.

Brand Names

  • Noryl®
  • Uninor® PPO
  • Noryl® EN 265
  • Norylux® 265
  • Norylux®
  • Ssutamid® PPO

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative with the form below.

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At a Glance

Generic Name
Polyphenylene Oxide, Unfilled

Available In
Sheet, Rod, Tube

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Technical Information

Stock Products Applications Advantages Grades

Stock Products

Sheet 0.60″ – 6″ TH Standard 12″ x 48″; 24″ x 48″, 48″ x 36″; CTS Black
Rod .125″ – 8″ DIA Standard 48″ to 96″ CTS Black

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.


  • Electrical/Electronic Applications
  • Automotive Applications
  • Electrical components
  • Wire & Cable Applications
  • Insulation
  • Housings
  • Liquid handling equipment


  • Good impact resistance
  • Good heat resistance
  • Good chemical resistance
  • Good strength and stiffness over a wide range of service temperatures
  • Easy to fabricate. paint. and glue
  • Escellent dimensional stability


  • Unfilled
  • Glass Filled
  • Nylon Alloy

NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.

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