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18mm Screw Caps with Septa for Headspace Vial Manufacturer

The Screw Caps that are included with this kit are knurled on the sides for excellent gripping and comfort when applied to the vial. The silicone rubber / PTFE septa used were designed to provide t...
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The Screw Caps that are included with this kit are knurled on the sides for excellent gripping and comfort when applied to the vial. The silicone rubber / PTFE septa used were designed to provide the right amount of resistance to autosampler needles during the injection process so that they penetrate the vial properly without damaging the septa or the injection needle.

Septa

PTFE/Silicone Septa:

High-quality, pure silicone is laminated to PTFE to give a pure, highly inert septum with excellent resealing characteristics even after repeated punctures.

PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical. Works well for applications where ease of needle penetration is important.

Septa-silica gel has strong repetitive sealability, and it can maintain good close performance after multiple injections; PTFE is a material with better chemical conditions at present, and it can withstand strong acids and alkalis. Two materials After compounding, the bottle can be used for various laboratory purposes such as sealed sampling, chemical storage and so on.

*Details:

  1. Suitable for: 18mm Screw Headspace Vials
  2. Caps Material: Magnetic Metal
  3. Septa Material: PTFE / Silicone
  4. Septa Size: 17.5*1.5mm
  5. Cap Features: 8mm Centre Hole
  6. Color: Metal Silver
18mm-screw-caps-size
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