Polyimide Coated Quartz Capillary Tubes

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Polyimide Coated Quartz Capillary Tubes Overview

Polyimide coated capillary quartz tubes are precision-engineered fused silica tubes designed with an additional polyimide coating layer.
This ultra-thin, golden-colored layer enhances flexibility, durability, and mechanical protection without affecting the optical or chemical properties of the quartz glass itself.
These tubes are ideal for analytical instruments, gas sampling, and microfluidic systems where both precision and flexibility are required.

Key Advantages

1. Enhanced Mechanical Strength
The polyimide coating provides additional surface protection, improving resistance to micro-cracks and breakage during handling, assembly, and transportation.

2. Improved Flexibility and Safety in Transport
Unlike uncoated quartz capillary tubes that are extremely brittle, coated tubes can tolerate mild bending and vibration, reducing the risk of damage during shipment and installation.

3. Non-Conductive and Chemically Stable Coating
The polyimide layer is non-conductive, thermally stable, and resistant to most solvents and chemicals, making it suitable for laboratory and industrial applications.

4. Easy Coating Removal
If bare quartz is required, the coating can be easily removed using alcohol wipes or gentle flame treatment without affecting the underlying quartz tube.

5. High Purity and Dimensional Precision
Each tube is made from high-purity fused quartz with tight tolerances for OD, ID, and wall thickness to ensure consistency in performance and flow control.