Rubber Stopper For Glass Bottle

Rubber Stopper for Glass Bottle

Precision-molded rubber stoppers delivering reliable, airtight seals for pharmaceutical, laboratory, and industrial glass bottles.

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Sealed for Integrity, From Filling to Final Use

 

A glass bottle is only as good as what seals it. Our rubber stoppers are engineered to deliver a tight, reliable closure for glass bottles across pharmaceutical, laboratory, and industrial applications - protecting product integrity from filling to final use.

Rubber Stopper for Glass Bottle

Our rubber stoppers are precision-molded to fit standard glass bottle and vial neck finishes, creating a secure, airtight seal that keeps contents protected from contamination, moisture, and oxygen exposure. Whether used for injectable medications, lyophilized (freeze-dried) products, serums, or laboratory samples, our stoppers maintain their shape and elasticity across a wide range of storage conditions, from cold-chain refrigeration to room-temperature shelf storage.

 

Made from medical-grade butyl or halobutyl rubber compounds, our stoppers offer low extractables and leachables, excellent resealing performance after needle penetration, and resistance to coring - making them a trusted choice for injectable and biologic packaging where product purity cannot be compromised.

Designed for Reliable Performance

A rubber stopper does more than plug an opening; it forms a critical barrier between the product inside a glass bottle and the outside environment. Our stoppers are built to:

 

Form a tight, consistent seal against standard glass bottle and vial necks

 

Withstand autoclaving and terminal sterilization without losing elasticity

 

Reseal cleanly after repeated needle punctures, minimizing coring and fragmentation

 

Maintain performance through freeze-drying cycles and cold-chain storage

 

Resist compression set over long-term storage, preserving seal integrity

 

 

Available Types & Customization

 

We manufacture rubber stoppers in a range of designs to match your bottle and application requirements.

Two-Leg / Slotted

For freeze-dry and lyophilized vials, allowing moisture escape during processing.

Solid Disc

For standard liquid-fill glass bottles.

Injection Stoppers

Designed for repeated syringe access.

Custom Sizing

Matched to 13mm, 20mm, 28mm, and other standard neck finishes.

Color Options

Gray or custom colors for easy product identification.

Optional Coatings

FluroTec or B2 film coating to reduce friction and adhesion on filling lines.

Why Choose Our Rubber Stoppers

Choosing the right rubber stopper directly affects product shelf life, sterility, and safety. Our stoppers are manufactured under strict quality control to ensure consistent dimensions, hardness, and sealing performance across every production batch - critical for pharmaceutical manufacturers who cannot afford variation from lot to lot.

Key Advantages

Medical-grade rubber compounds suited for injectable and biologic products

Consistent fit across standard glass bottle and vial neck sizes

Low extractables and leachables for pharmaceutical compliance

Reliable performance through sterilization, freeze-drying, and long-term storage

Available for wholesale and bulk orders with sample proofs before production

Options for various polymers like butyl, bromobutyl, chlorobutyl, silicon etc
Options for customized designs and formulations
Options of ready for sterilization (RFS) and ready for use stoppers (RFU)

At our lab and tech department, we have a dedicated team of experts who are committed to supporting the development of your drug product formulation. Our team has years of experience and expertise in the industry, and we take pride in our ability to provide world-class solutions to our clients.

We understand that selecting the right design for your vial is critical to the success of your product, and that is why we work closely with you to identify the best fit for your specific requirements. Our team will provide you with valuable insights and recommendations on the most suitable design for your vial, taking into account factors such as compatibility, sterility, and durability.

In addition to selecting the right vial design, we also assist you in identifying the optimal formulation for your specific application. Our experts can provide you with guidance on the most suitable materials and components to use in your product, to ensure that it offers optimal protection and remains stable and effective throughout its shelf life.

At our lab and tech department, we are passionate about helping our clients bring their drug product formulations to market successfully. We work tirelessly to provide tailored solutions that meet your specific needs, and we are committed to delivering exceptional service and support every step of the way.

Whether you are just starting out or looking to improve an existing product, we are here to help you achieve your goals. Contact us today to speak with one of our experts and learn more about how we can support your development.

Applications

Our rubber stoppers for glass bottles are used across a wide range of industries and products.

Get a Quote for Your Rubber Stopper Order

 

 

Whether you need a standard stopper size or a custom design matched to your specific glass bottle, our team can help you find the right fit. Send us your bottle specifications, and we'll provide a sample, pricing, and lead time for your rubber stopper order.

 

 

 

contact us today

Rubber Stopper for Glass Bottle · Medical-Grade Rubber Stopper · Injection Vial Stopper · Freeze-Dry Rubber Stopper · Butyl & Halobutyl Rubber Stopper

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