ETFE polymer coating is a biocompatible coating added in an extrusion process when precise coating is required. It can be made in any wall thickness larger than 0,02 mm (0.0008”) where typical tolerances are ± 0,01mm (±0,0004”). Thinner wall thickness on request.

With our very good concentricity and dimensional control we can offer an extrusion process that’s not a common capability globally. Extruded coating with an ETFE polymer coating is offered on most metals over 0.07mm (0.003”) in diameter.

The ETFE polymer coating is a copolymer of ethylene and tetrafluoroethylene. ETFE resins has excellent resistance to abrasion and stress cracking.

The ETFE coating is used in extrusion straight tubing, coated wire and cable. It’s used in applications where electrical isolation at elevated temperatures, high degree of mechanical toughness, chemical inertness and/or low friction is required.

Typical applications include sensing leads, handheld devices, implants, robotic connectivity and other microelectronic medical devices since it can operate in wide-temperature ranges, has low water absorption and performs well with ETO (ethylene oxide), autoclave and gamma sterilizations.

Chemical composition

Ethylene tetrafluoroethylene >99.99% PFOA Free (Medical Grade).

Properties (Typical)

  • Coating 0.02 mm - 0.1016 mm (±0.01mm)
  • Thickness: 0.004” - 0.0008” (±0.0004'')
  • Wire sizes: 0.075 mm to 0.7 mm (0.003” to .028”)
  • Color: Transparent (colored on request)
  • Density: 0.0625 lb/in3
  • Melting Point: 260° C (500° F)
  • Max Operating Temp: 279° C (535° F)
  • Temperature range: –190 to 150º C ( –310 to 302º F)
  • Dielectric Breakdown Voltage: 1.8 KV/mil
  • Dielectric Constant: 2.7
  • Coefficient of Friction: 0.24
  • Tensile Strength: 6000 – 6100 psi
  • Elongation: 300 – 400%
  • Flexural Modulus: 130 – 145 ksi
  • Water Absorption (24 hr): <0.01%