Watch Glass Manufacturer,Supplier and Exporter in India

Watch Glass (Product Code: SCL241/039) is a shallow, curved disc of clear borosilicate glass used to hold, stain, weigh or evaporate small quantities of material in school and college laboratories. Biology students rely on it when staining plant sections, and its 3-inch diameter, heat resistance and chemical resistance suit both stains and gentle warming. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer of botany lab equipment in India, at its own factory in Ambala.

Specifications

What Is the Watch Glass Used For?

The most familiar biology use of a watch glass is staining thin transverse sections of stems, roots and leaves. Freshly cut sections are floated in water in one watch glass, moved to a second containing a stain such as safranine, rinsed in a third, and then lifted onto a slide in a drop of glycerine. Working along a row of watch glasses keeps each step separate and is the usual routine for temporary slides in biology practicals.

Chemistry and general science classes use the same glass to evaporate a few drops of solution and watch crystals form, to hold a small amount of powder on a balance pan, or to rest over the mouth of a small beaker to keep dust out. Because the glass is clear, a sheet of white paper underneath shows colour changes and residues well. Like any borosilicate laboratory glassware in India, it is best handled by the edges and set on a flat surface, since the curved base can slide on a wet bench.

OEM Manufacturer

Jain Scientific Equipments Private Limited (CIN U29309HR2020PTC087597), which trades as ScienceLab, is the OEM (original equipment manufacturer) of this watch glass and makes it at its own licensed factory at 449, HSIIDC Industrial Area, Saha, Ambala, Haryana, India (Factory Licence AMB-ONLINE-CHD-J-414). Schools, colleges, laboratories and dealers buy it straight from the maker rather than through a trader. For repeat orders or matching glassware for a new lab, simply ask us. More about the company is on the company profile.

Related Laboratory Equipment

Useful companions for section staining and small-scale work:

• Safranine (Plant Tissue) — the stain most often poured into a watch glass for plant sections.
• Glycerine — mounting medium for stained sections once they leave the watch glass.
• Plain Slides — receive the stained section for viewing under the microscope.
• Beaker — a small beaker can be covered with the watch glass during warming or storage.
• Digital Analytical Balance — for weighing small samples placed on the watch glass.

More glassware and stains are listed under Biology Lab.

Frequently Asked Questions

What is the diameter of the Watch Glass?
The Watch Glass (SCL241/039) measures 3 inches across, enough to hold a few stained sections, a small pinch of powder or a few drops of solution for evaporation. If your practical needs a different diameter, ask us through the contact page before ordering.

Can the Watch Glass be heated?
Yes. The Watch Glass is made of heat-resistant borosilicate glass, so it tolerates gentle warming such as over a water bath. Let it cool on its own and avoid setting it down hot on a cold, wet bench, because sudden temperature changes can still crack glass.

Will the Watch Glass fit over my beaker?
The Watch Glass will cover any beaker or dish whose mouth is narrower than its 3-inch diameter. Measure the rim of the vessel you want to cover before relying on the watch glass as a lid during warming or overnight storage.

How do I remove stain marks from the Watch Glass?
Rinse the Watch Glass straight after use, because dried stain is harder to lift. Wash it with laboratory detergent, rinse with distilled water and dry it on a clean cloth; the chemical-resistant borosilicate glass stands up well to this routine washing.

How many watch glasses does a class need?
Section staining with the Watch Glass usually takes three per student or group, one each for water, stain and rinse, so many schools order in multiples of three. ScienceLab can quote any quantity, from a single bench set to a full class.

Who manufactures the Watch Glass?
Jain Scientific Equipments Pvt Ltd (ScienceLab) is the OEM manufacturer of the Watch Glass (SCL241/039). It is made at the company's own licensed factory at Saha, Ambala, Haryana, India, and supplied factory-direct to schools, colleges, laboratories and dealers.

Do you export the Watch Glass?
Yes. ScienceLab supplies the Watch Glass to institutions, distributors and importers in India and international markets. Send the product code SCL241/039, the quantity and the delivery destination, and the quotation will come directly from the manufacturer.

Request a Quote

Quote code SCL241/039 and your quantity on our contact page, or add the Watch Glass to the enquiry cart with your stains and slides. Your quotation comes directly from the manufacturer.

Last updated: 24 September 2026