Glass Test Tube with Cork Stopper

Integrated Cork Stopper Realizes One-Step Sealing with product

 

We have 12 years of professional experience in lab glassware production, and Glass Test Tube with Cork Stopper is designed for lab sample sealing and preservation needs. This tube comes with a natural cork stopper, saving you the trouble of purchasing additional sealing accessories, and its excellent sealing performance effectively protects samples from pollution and volatilization. It is widely used in biological sample storage, reagent subpackaging and organic chemical experiments, and it is the ideal choice for labs with sample sealing preservation needs.

We use non-toxic and tasteless borosilicate 3.3 glass for the tube body, and the material has stable chemical properties that can withstand temperature changes from -20℃ to 150℃ without cracking or deformation. The cork stopper is made of high-quality natural cork, tasteless and impurity-free with soft and elastic texture. We adopt precise matching technology between the tube and the cork stopper, and the stopper fits the tube mouth perfectly without loosening or liquid leakage. We conduct strict machine detection and full inspection in all production links to ensure stable product quality.

The clear capacity scale on the tube body has a reading error of ≤0.8%, which helps you control sample dosage accurately for various experiments. The round bottom design allows the tube to be placed directly on regular test tube racks, and the natural cork stopper is a tight-fit seal that can be cleaned and reused repeatedly. The glass tube has strong corrosion resistance to strong acid, strong alkali and organic solvents, and you can clean it repeatedly and conduct 121℃ high-pressure sterilization without deformation. We provide a three-year warranty, support customized tube specifications and cork stopper materials for bulk orders, and ensure stable supply to meet your large-scale sample sealing preservation needs.

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