Superior Stiffness

undirectional composite surgical tubingPolyMed®UD designates a unidirectional continuous fiber reinforced tubing material with thermoset resin as the matrix. PolyMed Unidirectional tubing offers superior stiffness and multilumen design options, and is capable of withstanding multiple steam sterilizations with minimal loss of mechanical and electrical properties.

unidirectional illustrated

Key Features

  • High strength-to-weight ratio
  • Superior stiffness
  • Outstanding dielectric properties
  • Electromagnetically transparent
  • Proven bio-compatibility
  • USP Class VI and ISO 10993 compliant
  • Multilumen capable
  • Compatible with conventional sterilization processes

Unidirectional Fiber Properties

Technical Specifications

Technical Specifications

Tensile Strength ASTM D638 100 ksi
Tensile Modulus ASTM D638 6.0 msi
Flexural Strength at 25 Degrees C ASTM D790 80 ksi
Flexural Modulus at 25 Degrees C ASTM D790 5.0 msi
Dielectric Strength 400 V/mil
Water Absorption as % weight produced 0.1
Dielectric strength after 16 hours water soak 250 V/mil
Dielectric strength after 20 autoclave cycles and 16 Hour water soak 150 V/mil


Any ratings are typical for design purposes. Your design parameters may affect final ratings. Consult with a Polygon sales engineer for guidance. Final testing and approval is the customer's responsibility for their application. This information is derived from our testing and published data. There is no assurance of these properties, or warranty provided that these products are suitable for any particular purpose or operational situation.

Polygon certifies that their product will be free from material defect. Polygon will not accept any liability for loss, damages, or costs from use or misuse of our products.

Specifications are subject to change, and may be affected by our continual process of improvement. Changes may be made without prior announcement.

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