CE 221


CE 221 is a high-performance material with superb strength and rigidity.

CE 221 (cyanate ester) is comparable to glass-filled nylon and can withstand high pressure and is fluid compatible.

Mechanical Specifications

General Accuracy:

± .003 in + .004 in/in

Production Repeatability (95% of points):

± .003 in

Tensile Modulus:

570,000 psi

Ultimate Tensile Strength:

12,00 psi

Elongation at Break:


Flexural Modulus (chord, .5-1% strain):

550,000 psi

Flexural Stress (chord, 0.5 – 1%):

19,000 psi

Heat Deflection at 264 psi (ASTM D648):



  • Automotive – Under the hood components (fluid and cooling applications).
  • Industrial
  • Electrical Assemblies


Key Characteristics

  • Amber Colored
  • Chemical Resistant
  • High Strength
  • Heat Resistant
  • High Resolution/High Detail
  • Rigid
  • Biocompatible – Special processing may be required. Please notify us of any biocompatibility needs.

Are you ready to get your ideas made?

Our RFQ Team is standing by to give you a quote, and parts can be done in days, or contact one of our Solutions Managers for answers to a question! 


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