Glastic UTR Composite Tubing (350ºF Economical Round, Square, and Rectangular Tubing)

  • UL Recognized
  • Highly Flame-Resistant
  • Arc-and Track-Resistant
  • Uncommon Dimensional Stability
  • Strong & Durable, yet Easily Cut and Chamfered
  • Cost-Effective

Glastic® Grade UTR Pultruded Tubing is a fiberglass-reinforced thermoset polyester tube. It meets the requirements of NEMA grade GPO-3, as well as being recognized by Underwriters Laboratories®.
Highly flame-, arc-, and track-resistant, Glastic UTR pultruded tubing provides reliability in a wide range of applications. The product exhibits exceptional dimensional stability and is impervious to high humidity or immersion. Also, because it is constructed of a reinforced plasticell nameomposite, it is electrically non-conductive.
This tubing has a UL index rating of 130ºC electrical and 160ºC mechanical. Its burst strength is 1,200 to 1,400 psi, yet it is easily chamfered and cut with carbide or diamond saws.


Water Absorption0.5 % by Wt.
Tensile Strength ( psi )30.7 x 103
Compressive Strength ( lb )126
Arc Resistance ( sec )150
Compressive Modulus ( lb/In/In )3930
Tensile Modulus ( psi )2.28 x 106
UL Temperature Index for Electrical ( ºC )130
UL Temperature Index for Mechanical ( ºC )160
Flexural Strength (Tube) ( lb )134
Flexural Modulus (Tube) ( lb/in )4180
Burst Strength ( psi )1300
Inclined Plane Track Resistance ( min )300
Flame ResistanceClass 0

Stock Sizes

Glastic pultruded tubing is available in a variety of stocked sizes.

Custom Performance/Standard Sizes

By changing the raw materials, stock sizes can be modified to meet your specific performance requirements. No new tooling is required.

Custom Tubing Available

Custom tubing can also be produced to meet your specific requirements such as:

  • High tensile strength
  • High flexural strength
  • Increased stiffness
  • UV stability
  • Custom colors (ask about Alpha color options)
  • Corrosion and chemical resistance
  • Custom shapes

Product Variations

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