XVTHOAKU 30Pcs Solid Rubber Stoppers #000 #8 Sizes Lab Use

Description

Product Overview

The XVTHOAKU 30‑piece solid rubber stopper collection is engineered to meet the demanding needs of modern laboratories, educational institutions, and research facilities. Each stopper is crafted from high‑density rubber that resists degradation when exposed to non‑aggressive chemicals, concentrated solutions, and a range of temperatures commonly encountered in scientific work. The set includes a complete size range from #000 to #8, providing a versatile solution for sealing flasks, test tubes, bottles, and other glassware without the need for additional accessories.

All thirty stoppers are precision‑molded to ensure a uniform outer diameter and a smooth, seamless surface that eliminates the risk of leaks caused by imperfect fits. The solid construction, free of any central hole, guarantees a hermetic seal that maintains the integrity of samples, reagents, and reactions throughout the experimental process. The high‑density rubber material offers excellent chemical resistance, making these stoppers suitable for both routine laboratory tasks and more specialized applications involving concentrated acids, bases, and organic solvents.

Usage

These stoppers excel in a variety of practical scenarios. In teaching laboratories, they provide students with reliable sealing components that simplify setup and reduce the likelihood of accidental spills. In research environments, the broad size spectrum enables scientists to quickly match the appropriate stopper to any vessel, from micro‑scale analytical flasks to larger storage bottles. The leak‑free design is especially valuable when working with volatile or hazardous substances, as it minimizes exposure risk and preserves sample purity.

Beyond traditional chemistry labs, the stoppers are also well‑suited for biology, environmental testing, and quality‑control settings where airtight containment is essential. Their durability allows for repeated use, reducing consumable costs over time. Whether you are conducting titration experiments, preparing culture media, or storing calibration standards, the XVTHOAKU rubber stoppers provide a dependable sealing solution that supports accurate and reproducible results.

Why Choose Us

Choosing XVTHOAKU means selecting a brand committed to quality, consistency, and customer satisfaction. Our stoppers undergo rigorous testing to verify dimensional accuracy, chemical resistance, and long‑term performance. Each batch is inspected for uniformity, ensuring that every stopper fits snugly and maintains a consistent seal across all sizes. We stand behind our product with a responsive support team ready to address any concerns, offering assistance and replacement options if a defect is identified.

Our dedication to sustainable manufacturing practices also means that the rubber used is sourced responsibly, minimizing environmental impact while delivering the high‑performance characteristics required by demanding laboratory applications. By investing in XVTHOAKU stoppers, you benefit from a product that combines durability, precision, and reliable service, all backed by a guarantee of quality.

Key Features

• Complete size range from #000 to #8 eliminates the need for multiple purchases
• High‑density rubber resists chemicals and maintains seal integrity under pressure
• Solid, hole‑free design provides leak‑proof performance for a variety of glassware
• Durable construction allows repeated use, reducing long‑term consumable costs
• Responsive customer support and product guarantee ensure peace of mind

FAQ

What chemicals are these rubber stoppers compatible with?

The stoppers are made from high‑density rubber that is resistant to most non‑aggressive chemicals, including common acids, bases, and organic solvents. They are suitable for use with concentrated solutions, but extreme corrosive agents such as hydrofluoric acid should be avoided.

Can the stoppers be autoclaved for sterilization?

Yes, the rubber material tolerates standard autoclave cycles (121 °C, 15 psi) without deformation, making them appropriate for sterilization in microbiology and cell‑culture applications.

How do I determine the correct stopper size for my vessel?

Measure the inner diameter of the opening you wish to seal. The size numbers correspond to standard laboratory taper dimensions: #000 fits openings of approximately 0.5 mm, while #8 fits openings up to about 12 mm. Refer to the size chart provided with the product for precise matching.

Is there a warranty or return policy for these stoppers?

XVTHOAKU offers a one‑year warranty covering manufacturing defects. If you encounter any issues, contact our support team for assistance, replacement, or a refund in accordance with our return policy.

Are these stoppers suitable for use in high‑temperature reactions?

The high‑density rubber can withstand temperatures up to 150 °C for short periods, making them appropriate for many heated reactions. For prolonged exposure above this temperature, consider using specialized high‑temperature sealing solutions.