Coverslip

Cover Slip is a common laboratory consumable in microscopy observation. It is usually used to cover the slide to ensure that the sample is observed more clearly under the microscope.The coverslip microscope has good transparency and chemical stability, and is suitable for cytology, microbiology, histology, etc.

Coverslips for sale: 18*18, 20*20, 22*22, 24*24, 24*32, 24*50, 24*60.

MOQ: 1 CARTON.

Coverslips for Sale

Cat No.	Specification	Package	Weight(KG)	Size(CM)
GBP-18×18	18×18	100pcs/box, 10 boxes/aluminumbag, 50 aluminum bags/carton	9.5	33×20×28
GBP-20×20	20×20	100pcs/box, 10 boxes/aluminumbag, 50 aluminum bags/carton	11	33×20×28
GBP-22×22	22×22	100pcs/box, 10 boxes/aluminumbag, 50 aluminum bags/carton	12.5	37×20×28
GBP-24×24	24×24	100pcs/box, 10 boxes/aluminumbag, 50 aluminum bags/carton	14	37×20×28
GBP-24×32	24×32	100pcs/box, 10 boxes/aluminumbag, 50 aluminum bags/carton	19	47×20×28
GBP-24×50	24×50	100pcs/box, 10 boxes/aluminumbag, 30 aluminum bags/carton	17	41×20×28
GBP-24×60	24×60	100pcs/box, 10 boxes/aluminumbag, 30 aluminum bags/carton	20	47×20×28

Feature of Coverslips for Microscope

Provides clear specimen observation for routine microscopy and laboratory applications.
Designed with consistent thickness to support reliable specimen observation and imaging.
Smooth glass surfaces help ensure proper contact with specimens and microscope slides.
Available in different dimensions and thicknesses to meet various microscopy requirements.
Suitable for specimen preparation, routine microscopy, and biological sample observation.
Designed for convenient placement over specimens on microscope slides.

FAQ of Microscope Coverslips

What is the difference between a microscope slide and a coverslip?

A microscope slide supports the specimen, while a coverslip is placed over the specimen. Coverslips are generally thinner than standard glass microscope slides.

Are glass coverslips reusable?

Reuse depends on the application and validated cleaning procedures. For sensitive analytical, diagnostic, or contamination-prone applications, single-use polished coverslips are generally preferred.

How to put cover slip microscope without bubbles?

1. Prepare the Slide

Add Mounting Medium: Place a small drop of mounting medium (e.g., Canada balsam, glycerol, or synthetic resin) on the slide over the specimen. Use just enough to cover the specimen area—too much can cause overflow and too little may introduce air bubbles.
Even Spread: Try to ensure the mounting medium is evenly spread over the specimen before applying the slip.

2. Angle the cover slip

Hold at an Angle: Hold the slip at a 45-degree angle above the mounting medium, with one edge just touching the drop. The angled approach allows air to escape as the slip is lowered.
Slowly Lower: Slowly and gently lower the slip onto the slide. This gradual lowering helps spread the mounting medium evenly, allowing bubbles to escape before they become trapped.

3. Apply Gentle Pressure

Apply Gentle, Even Pressure: If any small bubbles remain, use a wooden applicator stick, tweezers, or a soft cloth to gently press on the glass slip. Start from one end of the slip and move toward the other end to push bubbles toward the edges.

4. Allow the Slide to Settle

Wait for Settling: After the slip is in place, allow the coverglass to sit for a minute or two to let any remaining small bubbles rise to the edges, where they can escape.
Avoid Disturbance: Handle the glass slide and slide carefully to avoid jarring or moving the coverslip microscope until the mounting medium is set.

5. Use Anti-Bubble Mounting Medium (Optional)

Special Medium: Some mounting media are designed to reduce or prevent air bubbles. If air bubbles remain a persistent issue, consider trying one of these.

How to use the coverslips with polished edges?

Gently pick up the cover glass slip with tweezers, tilt it at a 45° angle to cover it slowly so that one side of it touches the slide first, and then flatten it slowly to prevent air bubbles under it.
Gently press the microscope cover slip with scientific filter paper to help removing air bubbles.
Wipe the surface of the slide with a cotton gauze or clean paper towel to make sure there are no stains or residues.