Cover Glasses (Product Code: SLE/M/75) are thin square glass covers placed over specimens on microscope slides, used to flatten wet mounts, protect stained smears and keep objectives clean in biology, microbiology and pathology-training laboratories. They are made of chemically resistant borosilicate glass, measure 22 x 22 mm and are 0.13 to 0.17 mm thick. They are supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, a lab consumables supplier to institutions in India and abroad.
| Parameter | Detail |
|---|---|
| Material | Chemically resistant borosilicate glass |
| Size | 22 mm x 22 mm |
| Thickness | 0.13 to 0.17 mm |
| Use | Covering specimens on microscope slides |
| Product code | SLE/M/75 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
Almost every slide a student prepares needs a cover glass: onion peel in iodine, cheek cells in methylene blue, pollen grains, yeast, pond-water organisms and hay-infusion protozoa. The cover holds the liquid in a thin, even layer, stops the specimen drying out too quickly and keeps stain and water away from the objective lens. Its thinness lets high-power objectives focus through it, and borosilicate glass stands up to common stains and reagents, which is why cover glasses are a staple of any temporary slides biology kit.
To avoid air bubbles, touch one edge of the cover glass to the drop at an angle and lower it slowly with a mounted needle or fine forceps. Blot excess liquid from the edges with filter paper. Handle cover glasses by their edges, keep them in their box until use, and put broken pieces in a glass-waste container rather than a general bin.
Jain Scientific Equipments Private Limited supplies these cover glasses under its ScienceLab name from Ambala, Haryana, alongside glass slides, concavity slides and other microscopy consumables for schools, colleges, hospitals' teaching labs, dealers and importers in India and international markets. For import paperwork and vendor records, the company's Importer-Exporter Code is AAECJ8618A (DGFT) and its GSTIN is 06AAECJ8618A1ZT. Company details are on the ScienceLab profile page.
Consumables and tools used with cover glasses:
See more microscopy items in the Microscope category.
What size are the Cover Glasses?
The Cover Glasses measure 22 mm x 22 mm and are 0.13 to 0.17 mm thick. This square size covers the usual area of a smear or wet mount on a standard slide while leaving room at the ends for labelling.
What are the Cover Glasses made of?
The Cover Glasses are made of chemically resistant borosilicate glass. Borosilicate stands up well to the stains, iodine and other reagents used in routine slide preparation, so the covers stay clear during staining and mounting.
Can the Cover Glasses be used for high-power and oil-immersion work?
Yes. At 0.13 to 0.17 mm, the Cover Glasses are in the thin range normally used for routine high-power and oil-immersion microscopy. For oil immersion, place the oil drop on top of the cover glass, never directly on an uncovered specimen.
How many Cover Glasses are in a pack?
The pack quantity for the Cover Glasses is not stated in the product details. Tell us how many you need for your practicals through the contact page and we will quote in the current pack size.
How do I avoid air bubbles under the Cover Glasses?
To avoid bubbles under the Cover Glasses, touch one edge to the liquid at an angle and lower the glass slowly with a needle or forceps, letting the liquid spread ahead of it. Blot any excess from the edges with filter paper.
Who supplies the Cover Glasses?
Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India supplies the Cover Glasses to schools, colleges, teaching laboratories, dealers and importers in India and international markets, together with microscope slides and other microscopy consumables.
For a quotation on Cover Glasses, send the quantity and delivery location through the contact page, or add them to the enquiry cart together with slides and forceps.
Last updated: 24 September 2026