Dual-Layer Color-Coded PEEK Tubing 1/16" OD

VICI MetronicsSKU: MT-T-62004-DL-BK

ID: 0.004"(0.10 mm) ID
Color: BLACK


VICI Metronics is proud to offer the only dual-layer PEEK tubing available on the market. This innovative tubing consists of two concentric extrusions of PEEK. The outer tubing layer is a solid color, useful for rapid and effective ID (inner diameter) dimensional identification.

The inner tubing layer is virgin PEEK, extruded naturally without any colorant addition or other additives. This inner layer is what ensures the tubing is chemically inert to the fluid it transports.

Please see General Precautions when using PEEK here.

Dual-layer PEEK tubing is a VICI Metronics-exclusive product. For chemically sensitive applications, the result of innovative research and manufacturing of dual-layer PEEK is a unique option available. Because there is no physical way for the colorant of the outer tubing layer to come into contact with the fluid (liquid, gas, or multiphase flow) that the tubing transports, it is the safest option when working with highly reactive or sensitive samples.

The biodegradable, virgin PEEK of the protective inner layer will not leach metal ions into the eluent in chromatographic applications nor extract metal-sensitive components from the fluid.

This is an ideal choice for applications that require pure PEEK but need the convenience of instant dimensional identification accomplished by the color of the tubing.

VICI Metronics’ dual-layer PEEK tubing is the perfect choice for applications with highly reactive or sensitive chemical components, especially in laboratories that require different tubing dimensions in the same experimental or application design. The tubing’s inner layer is constructed only of the virgin PEEK directly from the raw material manufacturer and has no added chemicals. This dual-layer construction limits the material that comes into contact with the sample.

Some common applications for VICI Metronics’ dual-layer PEEK tubing include:

  • High Pressure or Performance Liquid Chromatography (HPLC)
  • Gas Chromatography (GC)
  • Solvent Transfer
  • Chemically Inert (High Purity) Gas Transfer

VICI Metronics dual-layer PEEK tubing is compatible with all Valco fittings, high and low-pressure Valco fittings, and all tube compression fittings. In addition, the standard 1/16” tubing will be compatible with all 1/16” fittings and, as such, can often be used as an alternative to steel tubing where applicable.

Unsure about what is needed for your application? Contact our tubing specialists today!


Technical Specifications

Maximum Operating Temperature

Use dual-layer tubing at continuous operating temperatures less than 100°C (212°F) for 1/16” OD with ID up to 0.030” (0.75 mm).

Maximum Operating Pressure & Coloring by Tubing ID

Tubing ID

[inch (mm)]


Max. Operating Pressure

[psi (bar)]

Product Number

0.004 (0.102)


6,700 (460)


0.005 (0.127)


6,700 (460)


0.007 (0.178)


6,400 (440)

MT-T-6200 7-DL-YL

0.010 (0.254)


6,100 (420)


0.020 (0.508)


5,000 (345)


0.030 (0.762)


3,800 (262)


Order Specifications

The 1/16” OD dual-layer tubing is available in standard sizes or OEM quantities with any ID specified from 0.002” (0.0508 mm) to 0.030” (0.75 mm).

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