Septa are available in a variety of materials and thicknesses. PTFE Natural Rubber are moderately priced seals for GC and HPLC with good chemical properties. They are ideal for multiple injections due to high resealability, but not as easy to penetrate as PTFE/RR. PTFE/High Performance Rubber is a highly pure synthetic red rubber septum that provides a reduced background level for specific GC applications, employing sensitive detectors such as ECD or NPD. PTFE/Silicone Septa (T/S) has high-quality, low background/blank value, 100% synthetic pure silicone septa.
Septa for 13-425 screw thread caps
Supplier: THERMO NATIONAL SCIENTIFIC
These septa are suitable for use with 13-425 threaded caps or 13 mm snap/crimp caps.
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Septa 8 mm for screw neck vials, 8-425
Supplier: THERMO NATIONAL SCIENTIFIC
These septa are designed to be used with 8 mm screw thread caps.
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Sealing discs
Supplier: witeg Labortechnik
These sealing discs are made from white PTFE.
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Septa for storage vial caps
Supplier: THERMO NATIONAL SCIENTIFIC
Septa, White PTFE/clear silicone, For: 15-425 screw cap, Thickness: 2,6 mm, Ø: 15 mm
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Septa for unlined aluminium seals, WHEATON®
Supplier: DWK Life Sciences
Septa, Septa, Silicone, Ø: 20 mm
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GC septa, BTO® septa
Supplier: Restek
These septa are preconditioned and ready to use.
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Seals for threaded connection caps (Septa)
Supplier: BIRZLE PETER
Silicone, transparent.