Silicone stopper

The silicone stoppers available from AllChimie are the reference for applications requiring high thermal resistance and excellent chemical inertness. Silicone withstands a wide temperature range, typically from -60 °C to +200 °C, making it compatible with sterilisation operations and heated setups.

Thanks to its remarkable flexibility and shape memory, silicone ensures superior sealing even after repeated use cycles. It does not release volatile substances, making it a preferred choice for sensitive applications in analytical chemistry or biotechnology.

These stoppers are available in solid, single-bore or double-bore versions and in many sizes to fit standard glassware necks. For any application in autoclave or with aggressive solvents, silicone offers a durable and reliable solution.

In a complete setup, the silicone stopper naturally fits on an autoclavable plastic Erlenmeyer flask or a storage container, combined with laboratory tubing of the same material for thermal and chemical consistency. For non-heated uses, rubber stoppers or neoprene stoppers offer an economical alternative.