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How to judge whether the sealing performance of silicone plug meets the standard?

Publish Time: 2025-07-07
As a widely used sealing material, silicone plug plays an important role in many fields such as medical, laboratory, food processing, industrial manufacturing, etc. with its excellent physical properties, chemical stability and environmental protection characteristics. It not only has good elasticity and temperature resistance, but also can maintain a stable sealing effect in a variety of complex environments, making it an ideal choice to replace traditional rubber or plastic plugs.

First of all, one of the biggest advantages of silicone plug is its excellent temperature resistance. Compared with ordinary rubber or plastic plugs, silicone plug can remain stable in the temperature range of -50℃ to 200℃ or even higher, and will not deform or release harmful substances due to high temperature, nor will it harden or lose elasticity due to low temperature. This feature makes it particularly suitable for application scenarios that require high temperature sterilization or low temperature storage, such as medical device disinfection, laboratory ware sealing, food refrigeration transportation, etc., to ensure that the sealing performance is not affected by changes in ambient temperature.

Secondly, silicone plug has excellent chemical stability, can resist the erosion of various acids, alkalis, oils and solvents, and is not easy to age or decompose after long-term use. This feature makes it perform well in the chemical, pharmaceutical and other industries, especially for sealing containers storing corrosive liquids or gases. In addition, silicone plugs are non-toxic and odorless, comply with many international safety standards such as FDA, GB, ISO, etc., and are widely used in food-grade and medical-grade sealing needs to ensure the safety and health of users.

In terms of sealing performance, silicone plugs can fit tightly to various bottle mouths, pipe mouths or interfaces due to their good elasticity and compressibility, achieving efficient airtightness and liquid tightness. Even in pressure changes or vibration environments, they can maintain a stable sealing effect to prevent leakage or contamination. Some high-precision silicone plugs are also specially surface treated to enhance friction, avoid slipping or loosening during installation, and improve the safety and reliability of use.

In terms of service life, silicone plugs are far superior to traditional rubber or plastic plugs. Due to its strong anti-aging performance, it can still maintain its original shape and function even in long-term use or frequent opening and closing, reducing the frequency of replacement and maintenance costs. At the same time, silicone plugs are easy to clean and reusable, further improving the economic and environmental value.

In terms of application flexibility, silicone plugs support a variety of customized options, including size, hardness, color, hole design, etc., to meet the needs of different industries and equipment. For example, the silicone plug with holes commonly used in laboratories can be used to connect instruments such as catheters and thermometers; the silicone plug used in the food industry emphasizes sealing and food safety; and in the medical field, silicone plugs are often used to seal key equipment such as infusion bottles, syringes, and vacuum blood collection tubes, which require extremely high precision and cleanliness.

In addition, silicone plugs also have significant advantages in environmental protection. It does not contain plasticizers, heavy metals or other harmful components, and can be recycled and reused after disposal, reducing the burden on the environment. As the world's attention to sustainable development continues to increase, silicone plugs are gradually replacing traditional plastic sealing materials and becoming an important part of green manufacturing.

With its multiple advantages such as excellent temperature resistance, chemical stability, sealing performance, long life, and environmental safety, silicone plugs are becoming the preferred material in various sealing applications. Whether in the fields of medical, laboratory, food or industrial manufacturing, it can provide users with efficient, safe and reliable sealing solutions, and is an indispensable and important accessory in modern production and life.a
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