Watch Glass PATIKIL 60/90/150mm Transparent Lab Beaker Cover Set

Description

Product Overview

Patikil’s watch glass collection is engineered for precision laboratory work, delivering three distinct diameters—60 mm, 90 mm, and 150 mm—within a single convenient package. Each glass is fabricated from high‑grade table glass that exhibits exceptional chemical durability, ensuring resistance to acids, bases, and solvents commonly encountered in scientific environments. The transparent nature of the glass provides clear visual access to reaction contents, while the smooth, chamfered edges reduce the risk of breakage and facilitate easy handling. Dimensions are carefully calibrated: the 60 mm glass measures 2.36 inches in diameter, the 90 mm version spans 3.54 inches, and the 150 mm model reaches 5.91 inches, allowing users to select the optimal size for a wide range of beakers, flasks, and petri dishes. Package contents include two pieces of each size, ensuring redundancy for repeated experiments and minimizing downtime caused by lost or damaged components.

Usage

These watch glasses excel in diverse laboratory scenarios. In evaporation studies, the broad surface area of the 150 mm glass accelerates solvent removal while the 60 mm and 90 mm options provide flexibility for smaller volumes. Researchers frequently employ them as temporary covers for beakers during weighing of corrosive substances, protecting both the sample and the surrounding workspace from splashes. The transparent material also supports visual monitoring of crystallization processes, allowing scientists to observe crystal growth without disturbing the system. Beyond traditional chemistry labs, the glasses are suitable for microbiology applications such as suspension drop cultures, where a sterile, non‑reactive surface is essential. In educational settings, instructors rely on these durable glasses to demonstrate fundamental concepts of surface tension and evaporation, benefitting from the product’s resistance to repeated cleaning cycles.

Why Choose Us

Patikil distinguishes itself through a commitment to quality control and material integrity. Each watch glass undergoes rigorous inspection for surface imperfections, ensuring a flawless viewing window and uniform thickness across the entire disc. The glass composition is selected for its low thermal expansion coefficient, reducing the likelihood of stress fractures during temperature fluctuations—though direct flame heating is expressly prohibited to prevent rupture. Patikil provides comprehensive after‑sales support, offering guidance on proper cleaning, storage, and reuse to extend product lifespan. Customers benefit from a clear return policy and responsive technical assistance, reinforcing confidence in the reliability of the glassware. Moreover, the brand’s reputation for consistent performance across multiple product lines assures laboratories that the watch glasses will integrate seamlessly with existing equipment and protocols.

Key Features

• High chemical durability protects samples from corrosion and contamination.
• Transparent design offers unobstructed visual monitoring of reactions.
• Chamfered edges provide safe handling and reduce breakage risk.
• Three size options (60 mm, 90 mm, 150 mm) cover a wide range of laboratory vessels.
• Responsive customer support and clear return policy ensure peace of mind.

FAQ

Can these watch glasses be used for heating?

No. Direct exposure to open flame or high‑temperature heating sources can cause the glass to crack or shatter. Use them only for room‑temperature applications or place them on a heat‑resistant platform if gentle warming is required.

How should I clean the watch glasses after use?

Rinse the glasses with distilled water to remove residues, then wash with a mild laboratory detergent. Rinse again thoroughly and allow them to air‑dry on a clean lint‑free surface before storage.

Are the glasses compatible with all types of solvents?

The glass is resistant to most common laboratory solvents, including acids, bases, and organic liquids. However, extremely aggressive reagents such as hydrofluoric acid should be avoided, as they can etch the glass surface.

What is the recommended storage method?

Store the watch glasses in a clean, dry cabinet, preferably in a protective container that prevents contact with sharp objects. Keep them away from direct sunlight and extreme temperature changes to maintain optical clarity.

Can I purchase additional sizes or quantities?

Patikil offers the same three‑size set in bulk packaging for larger laboratories. Contact the sales team for custom orders or to inquire about additional diameter options that may be added to the product line in the future.