EXERA® ETFE Polymer coating

EXERA® precision grade 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.

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Extruded coating with EXERA® precision grade ETFE polymer coating is offered on most metals over 0.07mm (0.003”) in diameter.

EXERA® precision grade ETFE polymer coating is a copolymer of ethylene and tetrafluoroethylene. ETFE resins has excellent resistance to abrasion and stress cracking.

EXERA® 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%