• High strength and toughness
  • Chemical resistance
  • Easy processing


  • Cost
  • Anisotropic
  • High processing temperatures


RTP 4100 Series, PEKK, is a semi-crystalline thermoplastic with high heat resistance, chemical resistance and the ability to withstand high mechanical loads.

PEKK is inherently flame retardant and has excellent heat release, low smoke generation and low toxicity. Because of these characteristics, it exhibits superior ablative characteristics.