
DWK Life Sciences 292226103
(D = 215mm)Silicone O-rings, 215 mm diameter, FEP coated, autoclavable, with 5 mm thickness, temperature resistant up to 200°C, suitable for DN200.
Explore flexible, chemically resistant seals for vial and bottle closures, heat tolerance, PTFE-faced and rubber variants for snug fit, and more.

Silicone O-rings, 215 mm diameter, FEP coated, autoclavable, with 5 mm thickness, temperature resistant up to 200°C, suitable for DN200.
Silicone cap wad for GL 14 threads, heat resistant up to 200°C, autoclavable, 12mm diameter, 2mm thickness.

Silicone cap wadssepta for GL 18 thread, thermally resistant up to 130°C steam and 200°C heat, autoclavable.

Silicone cap wad for GL 45 screwthread caps, 3 mm thick, autoclavable, thermal resistance up to 130°C steam and 200°C heat.
Exclusively on our platform, compare product datasheets from multiple suppliers and order directly or request a quote tailored to your needs.
Don’t overpay—pick the most competitive offer.
Suppliers respond within 24-48 hours, no chasing, no delays.
Compare offers from 50+ suppliers in just one request.
Access specs, MOQ, delivery-time and alternative – all in one place.
Easy registration. No fees.
Enjoy fast local delivery with Swiss and EU based suppliers.
Take quality further: explore all our references.
Lab managers lose over 500 hours annually on manual procurement tasks.
One institute cut ordering time by 85% and eliminated wrong-spec errors.
Labs save 30% on average on sourcing costs with Spyndl’s automated quote comparisons.
“Spyndl saved us over 500 hours a year and reduced sourcing time by 85%. It's our go-to for reliable lab quotes.”
“We eliminated costly mismatches and saw a 30% cost reduction in our pipette orders. Centralization is a game-changer.”
“30% savings, zero guesswork—Spyndl's multi-quote approach allows us to choose the best offer every time.”
“Spyndl saved us over 500 hours a year and reduced sourcing time by 85%. It's our go-to for reliable lab quotes.”
“We eliminated costly mismatches and saw a 30% cost reduction in our pipette orders. Centralization is a game-changer.”
“30% savings, zero guesswork—Spyndl's multi-quote approach allows us to choose the best offer every time.”
Compare our multi-vendor catalog and see market-price comparison
Select your products, add them to the cart to receive offers.
Send your list of references to get custom offers.
Browse our catalog or describe your exact requirements—Spyndl taps into millions of products via our partner network and delivers the most competitive quotes within 24–48 hours. No commitment, no hassle.
Silicone Stoppers are essential consumables in modern biotechnology, life sciences, chemical analysis, medical research and R&D laboratories. Designed for reliable sealing, chemical resistance and temperature tolerance, high-grade Silicone Stoppers protect samples, reagents and standards across workflows from storage and transport to automated processing. Laboratories working in biotech, analytical chemistry, clinical studies and pharmaceutical development rely on these components as part of their core laboratory equipment and scientific instruments.
Spyndl’s marketplace aggregates a growing selection of premium Silicone Stoppers from Swiss and EU vendors, brands and manufacturers, with new suppliers continually onboarded to expand options and drive competitive pricing. You can order instantly at pre-negotiated prices for immediate savings, or ask Spyndl to negotiate custom prices on a case-by-case basis for tailored offers. Explore complementary options like vials and consumables for paired workflows at Vials and find compatible caps and closures at Screw Caps to complete procurement packages.
In biotechnology and cell biology, Silicone Stoppers are used to seal vials and bottles for sterility, cryostorage and reagent containment, preserving sample integrity during handling and incubation. For chemical labs, chemical silicone stoppers provide low-extractable, solvent-resistant sealing for reaction vessels and solvent bottles, making them a reliable choice for analytical chemists and synthetic labs. When integrated into clinical workflows, medical silicone stoppers support safe sample collection and transport with consistent performance under varied temperature and pressure conditions.
Research labs and R&D teams use Silicone Stoppers across workflows including reagent storage, gas-tight sampling, headspace analysis and chromatography prep. Pairing stoppers with compatible containers ensures reproducible results; for bulk storage and sample organization consider bottles and jars at Bottles & Jars, while specialty septa selections like PTFE options at PTFE Septa provide solvent-resistant alternatives for automated sampling and GC/LC workflows.
High-performance Silicone Stoppers come in a range of sizes, durometers and formats to meet specific lab needs. Common features include chemical resistance to acids, bases and organic solvents, low-adsorption surfaces to minimize sample loss, and temperature stability for freezer-to-autoclave workflows. For biotech users, biotech silicone stoppers often meet biocompatibility and low-extractables requirements; manufacturers provide traceability and material data sheets to support regulatory and QC processes.
For analytical and chemical research applications, chemical silicone stoppers are available with integrated septa or layered designs to provide gas-tight seals for headspace sampling and GC/LC injection. In medical and clinical environments, medical silicone stoppers are supplied in sterile packs or with validated processes, helping laboratories maintain chain-of-custody for samples and ensuring compatibility with automated vial handlers and sample management systems.
Beyond raw material performance, choose Silicone Stoppers that align with your workflow: color coding for sample identification, pre-drilled or pierced options for syringe access, and molded features for secure seating in glass or plastic labware. These practical features help labs streamline operations and support reproducible, efficient workflows in biotech, chemical, medical and R&D settings.
Spyndl offers direct access to an expanding network of Swiss and EU vendors, brands and manufacturers, continuously onboarding new suppliers so procurement teams can find the exact Silicone Stoppers they need. Whether you require small sterile batches for clinical research or larger volumes for production labs, Spyndl’s platform aggregates competitive quotes while maintaining transparency - no fees, no commitments.
You can order instantly at pre-negotiated prices for immediate savings, or request a tailored negotiation where Spyndl secures custom pricing and fulfillment terms for specialized needs. This dual-mode purchasing model ensures both speed and flexibility for labs sourcing life sciences equipment and scientific instruments.
Spyndl streamlines procurement by consolidating vendor offers, comparing technical specifications and providing centralized product information so procurement managers and lab leads can make informed decisions. The platform supports quality checks, material certifications and supplier traceability - especially important when sourcing material-sensitive items like silicone stoppers for biotechnology or medical research.
As the catalog expands, Spyndl continues to support customized sourcing for specialized projects in chemical analysis and R&D. For compatible labware and closure solutions that complete your setup, consider exploring related product groups such as vials at Vials, caps and closures at Screw Caps, bottles & jars at Bottles & Jars and PTFE septa at PTFE Septa. By choosing Spyndl you gain access to reliable suppliers, clear documentation and procurement flexibility - so your lab can focus on science while Spyndl manages the sourcing.