Glass Stopper Manufacturer,Supplier and Exporter in India

Product Code : SCL-GA-10344

The Glass Stopper is a laboratory glass closure used for sealing compatible flasks, bottles, volumetric glassware, reagent containers, and other ground-neck vessels. It is suitable for schools, colleges, universities, chemistry labs, biology labs, research labs, testing facilities, exporters, and institutional glassware procurement teams.

Product Description

The Glass Stopper - Various Sizes from Lab Glassware Manufacturer is intended for laboratory glassware that requires a reusable glass closure. Related verified product pages show glass stoppers used with volumetric flasks and hollow glass stoppers supplied with selected flask products.

Glass stoppers help reduce contamination, evaporation, dust entry, and accidental exposure when matched correctly with compatible ground-glass necks. The exact stopper size range, glass grade, head style, grinding tolerance, interchangeability, and certificate availability should be confirmed before catalogue publication or bulk procurement.

Key Features

• Various size options: suitable for matching different compatible glassware necks, where the stopper size is verified.
• Glass closure design: provides a rigid and reusable sealing component for laboratory vessels.
• Capacity not applicable: this is a closure accessory, not a measuring or storage vessel.
• Compatible glassware use: suitable for selected flasks, bottles, volumetric flasks, and reagent vessels.
• Laboratory handling support: helps reduce exposure, dust entry, splashing, and evaporation during storage or short-term handling.
• Reusable lab accessory: can be cleaned and reused when the glass is undamaged and compatible with the method.
• Specification-dependent fit: stopper size, taper, neck compatibility, and material must be verified before use.

Technical Specifications

What's Included in the Kit

• Glass Stopper in selected size
• Size label, storage packaging, certificate, or compatibility chart

Applications / Uses

• Closing compatible volumetric flasks and laboratory bottles
• Reducing dust entry and evaporation during short-term storage
• Sealing compatible reagent vessels and ground-neck glassware
• Replacing damaged or missing stoppers where size compatibility is verified
• Supporting classroom, research, preparation room, and testing lab glassware workflows
• Use in chemistry and biology laboratories for routine glassware handling

How to Use the Glass Stopper

1. Confirm the stopper size and taper before matching it with the glassware neck.
2. Inspect the stopper for cracks, chips, rough edges, residue, or stuck particles.
3. Clean and dry both the stopper and the glassware neck before use.
4. Insert the stopper gently into the compatible neck without forcing it.
5. Do not twist aggressively if the stopper feels tight or mismatched.
6. For stored liquids, confirm chemical compatibility and pressure risk before sealing.
7. Remove the stopper slowly, especially after temperature change or volatile-liquid storage.
8. After use, clean, dry, and store the stopper by size to avoid mismatching.

Safety note: Do not use a glass stopper to seal pressure-generating reactions, hot liquids, volatile solvents, or incompatible chemicals unless the vessel, stopper, and complete method are verified. Use eye protection, gloves, and a fume hood where required.

Care & Maintenance

• Clean immediately after use to prevent chemical residue or sticking.
• Store stoppers by size in padded or divided storage to prevent chipping.
• Do not force a stuck stopper; use approved laboratory methods for safe removal.
• Remove from service if cracks, chips, ground-surface damage, or stress marks appear.

Why Choose Lab Glassware Manufacturer

Lab Glassware Manufacturer manufactures and exports laboratory glassware, scientific laboratory instruments, lab experiment setups, science kits, didactic models, and STEM learning products. The brand serves schools, colleges, universities, laboratories, exporters, and institutional procurement buyers. Its catalogue supports chemistry, biology, physics, laboratory glassware supply, and education-focused scientific experimentation.

Frequently Asked Questions

What is a Glass Stopper used for?

A Glass Stopper is used to close compatible laboratory flasks, bottles, volumetric glassware, reagent vessels, and other ground-neck containers.

What sizes are available?

The product is supplied in various sizes. Confirm the exact stopper size and taper before matching it with a specific bottle, flask, or volumetric flask.

Is this stopper made from borosilicate glass?

The product name confirms glass construction, but the exact glass grade is not confirmed for this standalone stopper. Add borosilicate only after verification.

Can glass stoppers be used for chemicals?

They can be used with compatible chemicals and vessels, but chemical compatibility, sealing method, and pressure risk must be verified before use.

Can this stopper replace a missing flask stopper?

Yes, only if the stopper size, taper, and neck compatibility match the original glassware. A mismatched stopper can leak, stick, or damage the vessel.

How should glass stoppers be stored?

Store glass stoppers clean, dry, and separated by size in padded or divided storage to prevent chipping and mix-ups.

For related stopper and laboratory glassware products, explore volumetric flask with penny head stopper, glass flask products, volumetric flasks, and amber volumetric flask with penny head stopper.