Polyurethane Tubing (PU-ES & PU-ET)

Polyurethane Tubing

Our polyurethane (PU-ES & PU-ET) tubing is available in both ester and ether formulations. Combining good chemical resistance with excellent weathering characteristics sets our polyurethane tubing apart from most other thermoplastics. It has exceptional resistance to most gasolines, oils, kerosene, and other petroleum-based chemicals, making it an ideal choice for fuel lines (although some additives in today’s gasoline and petroleum products warrant field testing). It is also resistant to weathering, tearing, impact, radiation and abrasion and has a wide range of temperature resistance (-95°F to 185°F). Our polyurethane tubing contains no plasticizers that can cause flow contamination or tube hardening and can be heat sealed, coiled, fabricated or bonded.

Ether based polyurethane tubing (PU-ET) is recommended for hydrolytic stability (resistance to moisture and fungus) and is approved by the National Sanitation Foundation (NSF 51) and the Scientific Ecology Group (S.E.G.) which means it is 100% incineration approved. PU-ET also resists attack from ultraviolet rays, making it a good material for outside use. Note: Ester polyurethane does not react well with water, prolonged humid conditions, or attack from fungus.)

Ester based polyurethane tubing (PU-ES) is more resistant to pressure and vacuum applications than corresponding sizes of PVC or rubber. When used with Thermobarb fittings or Snapflex barbed fittings, PU-ES will not require clamps, provided that working pressures remain at or below 105 psi at ambient temperature.

Our polyurethane tubing is ideal for use in:
  • Metering pumps
  • Robotics
  • Computer disc drive equipment
  • Insulating sleeves
  • Small motor fuel lines
  • Vacuum equipment
  • Pressure measuring devices
  • Oxygen and gas lines
  • Nuclear power facility uses
  • Transfer lines for clean liquids
  • Instrumentation
  • Pneumatic control systems
  • Hydraulic control systems
  • Automotives
  • Fluid circuitry
  • Sensing systems
  • Grease & lubrication lines
  • Automated machinery
  • Fluid feeds
  • Air tools
  • Oil & fuel lines
  • Cement slurries
  • Petroleum products transfer
  • Abrasive powder transfer
  • Lubricated air feeds
  • Well pipe & cable jacket
  • Granular transfer
  • Agriculture
  • And more!

ES: Clear Ester formulated Polyurethane Tubing
ET: Clear Ether formulated Polyurethane Tubing

Note: Limited stock item; lead times and minimums may apply — call for details.

Superthane ET material is NSF approved.

Cut coils are available from coils of 100 ft. or less; charges apply — call for details. Coils over 100 ft. are sold by standard coil length only.

Tolerances: ID & OD ±3% but not less than ±.006".

PU-ES and PU-ET Physical Properties*
Hardness, Shore A ±5 85 85
Tensile Strength, psi 6000 5500
Elongation at Break, % 550 580
Brittle Temperature, °F -95° -90°
Max. Operating Temperature, °F 185° 175°

*Values listed are typical and are meant only as a guide to aid in design. Field testing should be performed to find the actual values for your application.

Sizing Table: 
Polyurethane (PU) tubing sizing table.