Polyimide Sealing Resin

pkg of 5 g


pkg of 5 g


gas chromatography (GC): suitable

storage temp.


General description

A GlasSeal connector will form a perfect seal between two fused silica columns. To make this connection extremely durable, use a small drop of this resin. Also for use as an excellent high temperature glue. Cures at 200 °C. For use at 350 °C or lower operating temperatures. The bottle contains 5 g of resin, and includes a handy applicator cap.


Polyimide sealing is used to make a permanent and leak-free union between two pieces of silica tubing, stainless steel or glass, press fit unions are most commonly used.

Legal Information

GlasSeal is a trademark of Sigma-Aldrich Co. LLC


Exclamation markHealth hazard

Signal Word


Target Organs

Respiratory system

WGK Germany


Flash Point(F)

187.0 °F - closed cup

Flash Point(C)

86.11 °C - closed cup

Certificate of Analysis
Certificate of Origin
  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the solvent used with the Polyimide Sealing Resin, Product 23817?

    The Supelco 23817: Sealing resin is solubilized in N-Methylpyrrolidone (Aldrich 443778).  Once this liquid polymer solidifies on drying or curing with heat, it can only be degraded by hot N-Methylpyrrolidone or hot concentrated sulfuric acid.

  4. What is a GlasSeal connector?

    A GlasSeal connector is a small piece of drawn glass tubing that is used to connect fused-silica capillary columns.  When you want the seal to be permanent, you can use the 23817: Polyimide Sealing Resin

  5. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  6. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  7. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Causes and prevention of column damage.
Rood D.
The Troubleshooting and Maintenance Guide for Gas Chromatographers, 228-229 (2007)
Maxwell Wei-Hao Li et al.
Journal of chromatography. A, 1620, 461002-461002 (2020-03-08)
Micro gas chromatography (µGC) is a technique developed for rapid, in situ analysis of volatile organic compounds (VOCs) for environmental protection, industrial monitoring, and toxicology. While reduced µGC size and power requirements allow for increased portability, the low moisture and...

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