Description
Septa made of silicone rubber are flexible sealing discs designed for laboratory bottles and vessels with a GL 32 thread. Each septum measures 29 mm in diameter and 2 mm in thickness, providing a reliable seal for sampling, storage, and routine handling of liquids and reagents. Silicone rubber offers good elasticity and chemical resistance for everyday lab use, allowing repeated piercing where needle access is required while helping maintain closure integrity. These septa fit GL 32 bottle necks commonly used with laboratory glass and plastic containers in analytical, preparative, and general research workflows. Supplied in a practical pack of 10 pieces from manufacturer DWK Life Sciences, they support consistent sealing across multiple vessels and reduce the need for frequent reordering of small consumables. With a low unit weight of 0,001 kg, the discs are easy to handle and store alongside other bottle accessories. Ideal for seals, hose connectors, and related labware setups, they integrate smoothly into standard container and bottle systems used in chemical, life-science, and teaching laboratories.
This article is part of Polymers, PEGs & silicones, in Organic chemicals & synthesis reagents.
Key features
- Pack size: 10 pc(s)
- Material: silicone rubber
- Thread size: GL 32
- Diameter: 29 mm
- Thickness: 2 mm
- Weight: 0,001 kg
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Questions about Septa, made of silicone rubber, GL 32, Ø 29 mm, thickness 2 mm, 10 unit(s)
What is this article?
Septa, made of silicone rubber, GL 32, Ø 29 mm, thickness 2 mm, 10 unit(s) is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Polymers, PEGs & silicones, inside Organic chemicals & synthesis reagents, in Lab chemicals.
A polymer, a PEG or a silicone is sold by molecular weight, or by viscosity, as much as by name. PEG 400 and PEG 4000 are different liquids and solids. A silicone oil's viscosity grades are the product range. The average molecular weight is the specification.
An organic chemical is built on carbon. In this category it is a building block or a reagent for making another molecule: a starting material, a coupling agent, a polymer, a PEG. Purity is a specification of which impurities remain. The structure, the CAS number and the grade decide whether two bottles are the same substance. Structures and properties are on PubChem. Nomenclature is IUPAC. Classification follows ECHA and the CLP Regulation.
Which category should I open next?
The category is Organic chemicals & synthesis reagents. The sub-category is Polymers, PEGs & silicones. The catalogue is Lab chemicals.
Shelves beside this one are Organic building blocks & synthesis reagents and Click chemistry, bioconjugation & synthesis reagents.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.