PI Polyimide Capillaries

PI Polyimide Capillary tubing is a specialized engineering material designed for ultra-precise fluid handling applications requiring outstanding high temperature resistance, excellent electrical insulation, and superior chemical durability. Made from advanced polyimide polymers, these capillaries maintain exceptional thermal stability, functioning reliably across a wide temperature range from cryogenic to over 400°C, making them ideal for aerospace, semiconductor, medical, and electronics industries.

Designed for precision applications requiring micro-scale fluid handling, our PI Polyimide Capillaries combine unmatched thermal stability, flexibility, and chemical resistance in ultra-thin diameters. These high-performance micro-tubes operate reliably from –269°C to +400°C, making them ideal for sensitive environments where metal or glass capillaries fail.

Key Advantages:

✔ Extreme Environment Performance – Withstands rapid thermal cycling, radiation, and vacuum conditions.

✔ Micro-Diameter Precision – Available in ultra-small bores (0.01mm–2mm) with tight tolerances (±0.005mm).

✔ Chemical & Solvent Resistance – Inert to acids, alkalis, and organic solvents (e.g., DMSO, acetone).

✔ Flexible Yet Kink-Resistant – Maintains structural integrity even in tight bends.

✔ Non-Contaminating & Low Outgassing – Critical for medical, analytical, and semiconductor uses.

Primary Applications:

Medical & Biotech: Catheters, microfluidic devices, and lab-on-a-chip systems.

Electronics: Fiber optic coating, wire insulation, and micro-electrofluidic delivery.

Analytical Instruments: GC/HPLC columns, capillary electrophoresis, and sensor housings.

Aerospace & Energy: Hydrogen fuel cell membranes, precision cooling channels.

Customizable with conductive coatings, hydrophilic treatments, or reinforced walls. Compliant with ISO 13485 (medical) and SEMI standards (semiconductor). Request samples for R&D or volume pricing!