Quick answer: Glass Stoppers provide a hermetic, interchangeable seal for laboratory glassware and storage vessels, made from chemically resistant borosilicate glass suited to containing volatile reagents and samples. Stoppers, Glass is priced at approximately ₹130 (indicative market benchmark, incl. GST, August 2026).
These interchangeable glass stoppers fit standard ground glass joints to create a leak-proof seal on flasks, bottles, and other laboratory storage vessels, protecting the contents from atmospheric contamination and reducing solvent evaporation. Made from chemically resistant borosilicate glass, they hold up to repeated use and contact with a wide range of common laboratory reagents. Glass stoppers of this kind are a routine item in school, college and research laboratories for sealing reagent bottles, storage flasks, and other standardized glass assemblies where a tight, reusable seal is needed.
Technical Specifications
| Parameter | Detail |
|---|---|
| Product Type | Glass stopper, interchangeable ground glass fit |
| Construction | Chemically resistant borosilicate glass |
| Function | Hermetic, leak-proof sealing of glassware and storage vessels |
| Typical Use | Sealing reagent bottles, flasks, and storage vessels against contamination and evaporation |
| Exact joint size | Not independently verified for this listing — confirm compatibility with your glassware with STEMAids before ordering |
| Price | Approx. ₹130 (indicative market benchmark, incl. GST, August 2026) |
| Exact dimensions/technical detail | Not independently verified for this listing — confirm with STEMAids before specifying in a tender |
Applications
- Sealing reagent bottles and storage flasks against contamination and evaporation
- General laboratory glassware sealing in school, college and research labs
- Protecting volatile reagents and sensitive samples during storage
- Standardized glass assembly sealing where a reusable stopper is preferred
Care & Maintenance
- Clean and dry thoroughly before storing to prevent residue buildup at the ground glass surface
- Check for chips at the sealing surface, which can compromise the airtight fit
- Apply a light film of joint grease if a tighter seal is needed for long-term storage
Why Choose STEMAids
STEMAids supplies a wide range of Chemistry Lab Equipments including Conductivity Tester for related laboratory and classroom needs. Eduscope Smart Learning Solutions Private Limited is a Udyam-registered micro manufacturing enterprise (UDYAM-DL-06-0069460) and ISO 9001:2015 certified, supplying schools, colleges and vocational institutes across India and for export.
Frequently Asked Questions
What joint size do these stoppers fit?
Exact joint size has not been independently verified for this listing — confirm compatibility with your specific glassware with STEMAids before ordering.
Are these stoppers reusable?
Yes, glass stoppers of this kind are designed for repeated use with proper cleaning between applications.
Is this suitable for storing volatile reagents?
Glass stoppers provide a hermetic seal suited to reducing evaporation of volatile reagents; exact chemical compatibility for specific reagents should be confirmed with STEMAids.
Is this suitable for a school or college chemistry lab?
Yes — glass stoppers are a routine item in school, college and research laboratories for sealing reagent bottles and storage vessels.
Does STEMAids supply these in bulk for institutional orders?
Yes — contact STEMAids to confirm current quantities and indicative pricing for institutional or bulk orders.
Is STEMAids a registered manufacturer of this product?
Yes. Eduscope Smart Learning Solutions Private Limited is a Udyam-registered micro manufacturing enterprise (UDYAM-DL-06-0069460) and is ISO 9001:2015 certified. See the About page for full registration and certification details — manufacturer-stated, verify before citing in procurement documents.
Last updated: 29 August 2026.
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