Septa

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.

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Septa for screw caps, N 13

Supplier: MACHEREY-NAGEL

Septa, PTFE virginal, white, Hardness: 53° shore D, Thickness: 0,25 mm, Ø: 12 mm

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Septa for EPA screw caps, N 24

Supplier: MACHEREY-NAGEL

Septa, Silicone natural/PTFE colourless, Hardness: 45° shore A, Thickness: 3,2 mm, Diameter: 22 mm

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PTFE coated GL 45 high purity silicone septum, DURAN®

Supplier: DWK Life Sciences

A high purity PTFE coated silicone septum for use with DURAN® GL 45 open top screw caps and all sises of DURAN® GL 45 laboratory bottles. Can be used for sampling using a syringe and a needle.

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GL bottle septa, silicone rubber, DURAN®

Supplier: DWK Life Sciences

Silicone, translucent.

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Septa for crimp neck vials, N 20

Supplier: MACHEREY-NAGEL

Septa, Silicone blue transparent/PTFE white, Hardness: 45° shore A, Thickness: 1,3 mm, Diameter: 19 mm

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Septa for screw caps, N 9

Supplier: MACHEREY-NAGEL

Septa, Silicone white/PTFE red, Hardness: 45° shore A, Thickness: 1,0 mm, Diameter: 9 mm

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Septa for open top caps, WHEATON®

Supplier: DWK Life Sciences

WHEATON®, Septa, Locking flange septa, autoclavable, Chlorobutyl/50, Ø: 33 mm

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Septa for headspace screw neck vials N 18

Supplier: MACHEREY-NAGEL

Septa, Silicone white/PTFE blue, Hardness: 45° shore A, Thickness: 1,5 mm

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Sealing discs

Supplier: witeg Labortechnik

These sealing discs are made from white PTFE.

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Septa for unlined aluminium seals, WHEATON®

Supplier: DWK Life Sciences

Septa, Septa, PTFE/silicone, Ø: 13 mm

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Seals for threaded connection caps (Septa)

Supplier: BIRZLE PETER

Silicone, transparent.

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Suba-Seal® septa

Supplier: Merck

This rubber turn-over closure with serrated stopper is ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal to protect contents of vessel or container from atmosphere.