Cork Stopper
Product Code : JL-LEP-10258
The Cork Stopper from Jaincolab, a trusted school laboratory equipment manufacturer, is used to seal the openings of 16 × 150 mm test tubes and other laboratory glassware, preventing leaks, hazards and contamination so that chemical reactions yield reliable, positive results. It is Extra Select Grade, made from the bark of the cork oak tree, chosen for fewer lenticels (crevices) for a tighter, more reliable seal.
This stopper is cylindrical with a tapered bottom end for a snug fit, and is bored with a central hole for passing glass tubing or a thermometer through. Being made from natural cork bark, it is elastic and near impermeable, giving a dependable seal across school and laboratory glassware. As a leading school laboratory equipment manufacturer and laboratory glassware supplier in India, Jaincolab supplies this cork stopper as per DEPED Guidelines to schools, colleges and laboratories across India and internationally.
Product Specifications
| Parameter | Details |
|---|---|
| Product Code | JL-LEP-10258 |
| Type | Extra Select Grade, with fewer lenticels (crevices) |
| Shape | Cylindrical with a tapered bottom end |
| Material | Bark of the cork oak tree – elastic and near impermeable |
| Height | 22 mm |
| Top Diameter | 17 mm |
| Bottom Diameter | 15 mm |
| Hole Diameter | 5 mm |
| Dimension Tolerance | ± 0.5 mm (height, top and bottom diameter) |
| Guideline Compliance | As per DEPED Guidelines |
Key Features
- Extra Select Grade natural cork with fewer lenticels for a tighter seal
- Cylindrical, tapered shape for a snug fit in 16 x 150 mm test tubes and glassware
- Bored with a central 5 mm hole for passing glass tubing or a thermometer
- Elastic, near impermeable cork oak bark material
- Tight dimensional tolerance of ± 0.5 mm for a consistent, reliable fit
- Prevents leaks, hazards and contamination during experiments
- Supplied as per DEPED Guidelines
Why Choose Jaincolab
Jaincolab is a trusted school laboratory equipment manufacturer and supplier of laboratory glassware accessories to schools, colleges and laboratories across India and internationally. Explore related laboratory essentials such as the Cork Borer, the Glass Tubing Long, the Test Tube Rack, and the Beaker Borosilicate 500 ml, or browse the full Laboratory Equipment Products range.
Applications
| Application Area | Use Case |
|---|---|
| School Chemistry Labs | Sealing test tubes and flasks to prevent leaks and contamination during reactions |
| Biology Labs | Fitting stoppers with glass tubing or thermometers for specimen jars and apparatus |
| Distillation Set-ups | Sealing flask openings while allowing tubing to pass through the bored hole |
| General Laboratory Use | Airtight sealing of glassware for storage and experiments |
Frequently Asked Questions
Q1: What is the Cork Stopper used for?
A1: It is used to seal the openings of 16 x 150 mm test tubes and other laboratory glassware, preventing leaks, hazards and contamination.
Q2: What material is the stopper made of?
A2: It is made from Extra Select Grade cork oak tree bark, which is elastic and near impermeable, with fewer lenticels for a tighter seal.
Q3: What are the dimensions of the stopper?
A3: It has a height of 22 mm, a top diameter of 17 mm, a bottom diameter of 15 mm, and a dimensional tolerance of ± 0.5 mm.
Q4: Does the stopper have a hole?
A4: Yes, it has a 5 mm bored hole, allowing glass tubing or a thermometer to be passed through it.
Q5: What shape is the cork stopper?
A5: It is cylindrical with a tapered bottom end for a snug, secure fit in test tubes and glassware.
Request a Quote
For pricing, bulk orders or custom requirements on the Cork Stopper or any other laboratory glassware accessory from Jaincolab, Request a Quote from our team.
