altPolyMedex Discovery Group (Putnam, CT) has announced the availability of custom multi-layer tubing composed of thermoset polyimide and thermoplastic elastomer (TPE) laminate, suitable for medical device applications. Thermoset polyimide has a minimum tensile strength of 20,000 PSI (138 MPa), 30% greater than high-performance thermoplastics such as polyetheretherketone (PEEK). Polyimide is resistant to the harshest chemicals and features a dielectric strength of 10,200 volts. The tubing can be produced with ID tolerances in the range of ±0.0002" to ±0.0005" depending on diameter, making it suitable for small-diameter vascular device assemblies where high strength and tolerance stackup are a critical concern.

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