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. 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%
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