Freudenberg - Innovating Together

Tri-Layer Tubing

A tri-layer extrusion is a single lumen tube comprised of three discrete layers. Freudenberg Medical designs and manufactures a wide range of three layer material combinations, these can include, but are not limited to:

  • Pebax 
  • Polyamide 
  • Polyurethane 
  • Polyethylene 
  • Polyester
  • EFEP
  • Tie-Layer Material
  • Blends

The tri-layer structure allows the extrusion to have unique characteristics throughout the tube:

  • Lubricious ID: Inner layer material having a low co-efficient of friction.
  • Lubricious OD: Outer layer material having a low co-efficient of friction.
  • Physical Properties: Layer materials can be tailored to increase burst strength, decrease elongation, or improve tensile strength.
  • Bondability: Outer layer material that allows for bonding to other polymeric materials or ink.
  • Tie-Layer: Tri-layer tubing provides two non-compatible materials the ability to bond together.
  • Encapsulation: Non-medical material/ingredient to be encapsulated between two medical-grade layers.
  • Tri-Layer Bump Tubing:  Allows 2 different outer and inner diameters within the same tubing.

OD sizes typically ranging from 0.4mm to 4mm

Typical tolerance +/- 0.015mm. As materials change so can tolerances.

Typical testing: Tensile, elongation, burst pressure, wall measurement, and delamination all available on site.