FAQ

I would like a 4 mm ID glass packed column, but you do not offer glass packed columns. What do you recommend?

30 Jul 2025

Depending on what method or protocol you are following, you likely can use our passivated stainless steel columns, made with SilcoSmooth tubing. These columns combine the flexibility and durability of stainless steel with the inertness of fused silica. A 3.1 mm ID (3/16″ OD) SilcoSmooth column will offer very comparable performance to a 4 mm ID glass column, without the hazard of breakage. So, if your method does not specify glass, SilcoSmooth tubing is an excellent alternative.

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  • Restek Corporation

    Restek is a leading provider of chromatography columns, accessories, and certified reference materials. Trust Restek for reliable, high-quality analytical solutions.

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