Silicone rubber cork

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Still, they tend to be more hygienic and come in different sizes. Manufactured from premium silicone rubber, they withstand extreme temperatures and continuous exposure to laboratory chemicals. So, before usage, confirm that the silicone cork material does not react with the stored items.

  • Temperature Resistance

    The temperature resistance of silicone rubber corks is one of its advantages.

    This makes sure the medicine is stored in a very safe manner.

  • Laboratory and Scientific Services

    Silicone corks and bungs are very popular in laboratories.

    silicone rubber cork

    This versatility is particularly useful for branding purposes in the retail and consumer goods industries as well as for functional purposes in specialized industrial applications.

  • Ease of Use: Most silicone corks are designed to be easily inserted and removed. Change your business account in your account profile or in the cart to view other accounts inventory.","CertificatesofAnalysis":"Certificate of Analysis","LetterofCertification":"Letter of Certification","CertificateofValidation":"Certificate of Validation","email":"Share","seeAlternateProducts":"See alternate available products","searchCertificates":"Search all product certificates on","technicalDocuments":"Technical Documents","rtecsNumber":"RTECSNumber","Scientific Posters":"Scientific Posters","packingAndBulkOrderingMessage2":"Request bulk or custom formats","packingAndBulkOrderingMessage1":"Order in Bulk","viewAlternatives":"View Alternatives","accessories":"Accessories","lotNumber":"Lot Number","greenDescription":"This product offers one or more environmental benefits itemized in the U.S.

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    This helps to prevent leakage, causes contamination, and minimizes the loss of product. Silicone rubber popper corks are good for use in kids' toys, laboratory equipment, and containers that need resealing and easy reaccess.

    Industrial Applications of Silicone Rubber Corks

    Silicone rubber bungs and corks have significant roles in diverse industrial settings.

    This makes them suitable for sealing containers under diverse conditions. The exceeded quantity will be backordered.","checkStockroomsDesc":"You are limited to inventory associated to this business account. The silicone corks are used to seal glass apparatus. Silicone rubber corks are also hygienic and easy to clean.

    Due to the tapered shape of these corks, they can fit different opening sizes more easily. For this reason, silicone bungs, such as those used in scientific and pharmaceutical storage systems, do not contaminate the materials inside. Their durability and stability make them essential components for reliable sealing in research, industrial, and analytical environments.

    Key Features

    • Made from high-purity silicone rubber for excellent sealing performance
    • Resistant to acids, alkalis, solvents, and harsh laboratory chemicals
    • High thermal stability for use in heating, cooling, and autoclaving processes
    • Flexible yet strong, retains shape without cracking or hardening over time
    • Non-reactive, non-toxic, and ideal for sensitive chemical and biological workflows
    • Smooth tapered design ensures a tight, consistent fit across compatible glassware
    • Available in multiple sizes for universal laboratory application
    • Long service life even under frequent sterilisation cycles

    Material Specifications

    • Material: Laboratory-grade silicone rubber
    • Thermal Properties: Suitable for extreme temperature applications; safe for autoclaving
    • Chemical Resistance: High resistance to acids, alkalis, organic solvents, and reagents
    • Mechanical Strength: Excellent elasticity, compression recovery, and deformation resistance
    • Standards: Manufactured according to standard laboratory rubberware guidelines (ISO/DIN compliant)

     Technical Specifications

    • Available Sizes: Wide range of stopper sizes to fit most lab glassware (as per the standard size table)
    • Design: Tapered cylindrical body for strong sealing; optional solid or bored versions
    • Tolerance: Standard moulded stopper tolerances ensuring a reliable and consistent fit
    • Accessories Included: None required; compatible with standard laboratory glassware

    Handling & Precautions

    • Clean with mild detergents or laboratory-grade cleaning solutions; avoid prolonged exposure to aggressive solvents
    • Autoclavable to ensure temperature settings fall within manufacturer safety limits
    • Avoid direct flames or overheating beyond the rated thermal capacity
    • Store in cool, dry conditions away from direct sunlight to prevent material ageing.
    • Inspect periodically for wear, cracks, or deformation, and replace when necessary
    • Select the proper stopper size to maintain airtight sealing and avoid glassware stress

    Applications

    • Suitable for chemical laboratories, microbiology labs, pharmaceutical R&D, QC/QA facilities, and analytical labs
    • Ideal for sealing test tubes, beakers, flasks, culture vessels, filtration containers, and reaction apparatus
    • Used in heating, cooling, storage, and sample preparation workflows
    • Perfect for environments requiring chemical resistance, thermal stability, and non-reactive sealing
    • Widely used in academic research institutions, biotech companies, chemical industries, and quality laboratories

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    Have corks that are particularly designed for lab usage in scientific studies. Silicone corks that are autoclavable may be required in laboratories or for sterilization in the medical field. Properties like flexibility and reusability of silicone make silicone corks very useful when shipping products in bulk.

    Product Specifications and Features of Silicone Rubber Corks

    Some key features make silicone corks and stoppers very useful for various applications.

    Cosmetics and packaging also require different types of silicone corks. The silicone bungs are used to seal chromatography columns and vacuum desiccators. Silicone corks are ideal for use in extreme temperature environments. They are further non-reactive and will not hinder or tamper with the quality of any item they enclose.

    How long can silicone corks be used for resealing containers?

    Silicone rubber popper corks are primarily designed to reseal containers temporarily.