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CAP Fused Silica Capillary Tubing

Product information "CAP Fused Silica Capillary Tubing"

Inside Diameter 15 to 450 µm; Outside Diameter 90 to 673 µm; Coating Polyimide; Temperature Range -190 to +350 °C; Tensile Strength >600 kpsi

Fiberguide’s fused silica capillary tubing is used for micro-fluidics applications and in gas chromatography (GC) separation columns. These capillaries are coated with polyimide for mechanical stability and versatile uses.

With inert surfaces and high purity, Fiberguide’s capillary tubing solutions provide a very high phase stability, while their peak mechanical stability leads to greater yield and more cost-efficient tubing. Based on the great flexibility combined with high tensile strength (>600 kpsi), these capillary tubing solutions are pressure resistant to 4,500 psi and allow very small radii during coiling with no kinking. They are impervious to chemicals, allowing usage in harsh environments.

A wide range of internal and external diameters with tight tolerances allows users to select a capillary tubing solution that best suits their flow rate requirements. All capillaries can be easily cleaved or cut, allowing to adjust exactly the column length needed for interfacing. While the mirror smooth inner surface provides stable laminar flow profiles and good adherence, the capillary tubing solutions’ Polyimide coating is very durable and abrasion resistant.

Key Features:

  • Pure Fused Silica Construction
  • Outside Diameters: 90 to 673 µm
  • Inside Diameters: 15 to 450 µm
  • Coating: Polyimide
  • Temperature Range: -190 to +350 °C
  • Tensile Strength: >600 kpsi
  • 100% Proof Tested for Strength


Applications: Micro-fluidics Applications; Gas Chromatography (GC) Separation Columns

Manufacturer "Molex (former Fiberguide Industries)"
Molex is a manufacturer of electronic components intended to offer interconnect solutions for aerospace, automotive, defense, HVAC, diagnostics, and data center industries. The company's electronic components include electronic, electrical, sensors, and fiber optic connectivity systems, electrical and fiber-optic interconnection products and systems, switches, cable assemblies, antennas, and integrated products. In 2020, Molex acquired Fiberguide Industries, Inc. a leading US provider of fiberoptic solutions to the OEM markets since 1977. The comprehensive product line is based on ISO 9000:2000 and includes standard and custom high optical transmission multimode, singlemode and graded-index optical fibers from UV to NIR, optical fiber assemblies and discrete components. Fiberguide´s products are used in applications such as medical, sensing, laser delivery systems and smoke and particle detection.
Related links of the manufacturer
Information on the manufacturer (information obligations under the GPSR Product Safety Regulation)
Molex, LLC
2222 Wellington Court
IL 60532 Lisle, United States