Description
Product Overview
The FUNOMOCYA 4‑piece laboratory glass beaker cover set is engineered from high‑quality borosilicate glass that tolerates temperatures up to 300 °C, making it suitable for a wide range of heating and cooling applications. Each lid measures 3.94 × 3.94 × 0.39 inches and weighs just 2.88 oz, providing a lightweight yet robust solution for protecting evaporating dishes during experiments. The thickened glass construction enhances impact resistance, reducing the risk of cracks or chips that can compromise safety and accuracy in the lab.
Designed with a flat, snug‑fit rim, the covers create a secure seal that minimizes evaporation loss while still allowing easy removal when needed. The transparent material ensures that users can monitor reaction progress without disturbing the setup, a critical feature for precise temperature control and observation of color changes or precipitate formation.
These lids are compatible with standard 100 ml, 250 ml, and 500 ml beakers commonly used in educational and research environments. The set includes four identical covers, offering flexibility for simultaneous experiments or replacement of damaged units. The product dimensions and weight make storage simple, fitting neatly into most laboratory glassware cabinets.
Manufactured by FUNOMOCYA, a reputable brand known for durable scientific equipment, the covers meet industry standards for chemical resistance and thermal stability. The ASIN B0DJYJWNQH and Best Sellers Rank of #57 in Lab Watch Glasses reflect strong market acceptance and reliability among educators and professionals.
Overall, this set delivers a balance of performance, durability, and cost‑effectiveness, positioning it as a practical addition to any laboratory’s inventory, whether for high‑school chemistry classes, university research labs, or home‑based hobbyist setups.
![[Product front view showing all components]](https://www.pastryshop.store/wp-content/uploads/2026/07/ea3507e96b0341b19c5c534cd5fc56a5.jpg)
Usage
In academic settings, teachers can use these covers during routine titration, distillation, and reflux experiments, ensuring that volatile solvents remain contained while students observe reactions through the clear glass. The high‑temperature resistance allows the lids to stay in place during gentle heating on hot plates or water baths, eliminating the need for constant supervision.
For home scientists and hobbyists, the covers are ideal for small‑scale synthesis, crystal growth, and qualitative analysis. Their ease of cleaning—simply rinse with warm water and mild detergent—makes them convenient for repeated use without leaving residues that could affect subsequent experiments.
Industrial technicians may employ the lids when conducting quality‑control tests on liquid samples, where maintaining a closed environment prevents contamination from airborne particles. The robust glass also resists common laboratory acids and bases, extending the lifespan of the product in harsh chemical conditions.
When used in field research, the compact size and lightweight nature of the covers facilitate transport in portable kits, allowing scientists to set up temporary labs in remote locations while still benefiting from reliable containment and observation capabilities.
Why Choose Us
Choosing FUNOMOCYA means selecting a brand committed to quality assurance through rigorous testing protocols. Each batch of glass covers undergoes thermal shock testing, chemical resistance evaluation, and dimensional verification to guarantee consistency and safety across all units.
Our customer support team provides responsive assistance, offering guidance on proper usage, cleaning, and storage. Should any defect arise, we stand behind a hassle‑free replacement policy, reinforcing confidence in the longevity of your purchase.
Environmental responsibility is integral to our manufacturing process. The glass used is recyclable, and we employ energy‑efficient production methods to reduce carbon footprint, aligning with sustainable laboratory practices.</n
Furthermore, the design incorporates user‑centric features such as a smooth rim for comfortable handling and a flat underside that sits securely on a variety of surfaces, minimizing wobble and enhancing stability during delicate procedures.
Key Features
- High‑temperature resistant borosilicate glass tolerates up to 300 °C for safe heating.
- Thickened design reduces breakage risk, offering long‑term durability.
- Transparent lid provides clear observation without removing the cover.
- Universal fit for standard beakers, supporting multiple experiment sizes.
- Responsive customer support and easy replacement policy for peace of mind.
FAQ
Can these covers be used with chemicals other than water?
Yes, the borosilicate glass is chemically resistant to most acids, bases, and organic solvents commonly used in laboratory work. However, it is advisable to avoid prolonged exposure to hydrofluoric acid, which can etch glass.
What is the maximum temperature these lids can withstand?
The covers are rated for continuous use up to 300 °C (572 °F). They can safely endure brief exposure to higher temperatures, but prolonged heating beyond the rating may compromise the glass integrity.
How should I clean the covers after use?
Rinse the lids with warm water and a mild laboratory detergent, then dry with a lint‑free cloth. For stubborn residues, a brief soak in a diluted acid solution (e.g., 10 % nitric acid) followed by thorough rinsing is effective.
Are the covers compatible with magnetic stirrers?
Yes, the flat underside allows stable placement on magnetic stir plates. The glass does not interfere with magnetic fields, ensuring smooth stirring without slippage.
Do you offer bulk pricing for larger orders?
FUNOMOCYA provides volume discounts for educational institutions and research facilities. Please contact our sales team with your required quantity to receive a customized quote.




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