Application and performance of silicone sealing ring

Silicone rubber has the characteristics of non-toxic and tasteless, not afraid of high temperature, cold resistance, oxygen resistance, aging resistance, mildew resistance, and good electrical insulation. It is widely used in industry, life and medical fields. Next, XHF will take you to understand the specific application of silicone rubber:

  1. Silicone rubber can be used to make anti-noise earplugs, fetal head suction devices, artificial blood vessels, etc.;
  2. Silicone rubber can be used for pump seal rings, oil seals, and various flame-retardant silicone rubber parts of hydraulic oil systems;
  3. Silicone rubber can be used for diaphragms of sensitive components in various regulators, heating sheets for instruments, shock-resistant prickly plywood, etc.;
  4. Silicone rubber is also required for various sealing rings, hoses, hoses, etc. used in aircraft and aircraft covering wires, hydraulic systems, and exposed systems;
  5. Silicone rubber can also be used in modern office buttons, rubber rollers, wire coating, etc.;
  6. In life, silicone rubber is suitable for sealing materials such as kitchen utensils, thermos bottles, ovens, microwave ovens, air pressure thermos bottles, and baby pacifiers.

This time, let’s take a look at where the silicone sealing ring will be applied:   

The sealing safety protection technology of many products has certain shortcomings in detail, and the use of silicone rubber as the material of hydraulic sealing rings is the most common one for everyone. Therefore, silicone sealing rings are used as a type of hydraulic sealing ring in various aspects. There are often some unexpected effects in normal applications. But in the process of use, there are many factors that will affect the service life of the silicone sealing ring.


The hardness and flexibility of silicone sealing rings are harmful. In many cases, the versatility and structure of the product can be completely changed according to the different hardness of the silicone rubber product. , Stretching, extrusion molding and other conditions, the sealing ring will have some unavoidable phenomena, such as extrusion gap, too little bearing force, too high strength, product deformation and no resilience.

Silicone sealing rings play a role in the integration of dustproof and waterproof seals in the electronics industry. They are the most used among various contemporary home appliances. The fusion of products and silicone seals requires the assistance of glue. Soft rubber products can be more integrated with home appliances, and with the development and growth of soft rubber products, from rubber to the current silicone sealing waterproof ring occupies almost all industries in the sealing of home appliances, and many waterproof and oil-proof home appliances almost use organic Customized silicone sealing products made of silicone materials, such as automatic washing machines, rice cookers, electric water heaters, etc., and the use of silicone sealing rings cannot be ignored. Lose its own sealing performance.

High temperatures will accelerate the aging of rubber materials. The higher the operating temperature, the greater the compression deformation of the silicone seal. When the product deformation is greater than 40%, the sealing ring loses its sealing performance and leaks.

The process formula used to make the silicone sealing ring produces compressive stress relaxation in the compressed state, and the compressive stress will decrease with time. The longer the use time, the greater the compression rate and stretching, the greater the stress drop caused by the relaxation of the rubber stress, so that the silicone sealing ring is not elastic enough to lose its sealing performance.

Silicone sealing rings are mainly used in waterproof sealing and preservation of daily necessities such as fresh-keeping boxes, rice cookers, water dispensers, lunch boxes, heat preservation boxes, incubators, water cups, ovens, magnetized cups, coffee pots, etc., and even large silicone sealing rings can be used in large automobiles. middle.         

Silicone sealing ring performance:

  1. Excellent sealing performance, waterproof and leak-proof.
  2. Good fresh-keeping effect, completely non-toxic and tasteless.
  3. High temperature resistance, no deformation, no chemical reaction, no harmful substances.
  4. Long-term use, not easy to fade.
  5. Good tensile performance, after special inspection and testing.
  6. Corona resistance, arc resistance, high and low temperature resistance, good aging resistance, high temperature resistance, in line with FDA and SGS standards.

Advantages of silicone seals:

  1. Heat resistance: Silicone rubber has much better heat resistance than ordinary rubber. It can be used almost forever at 150 ° without performance change. It can be used continuously for 10,000 hours at 200 ° and can also be used at 350 °. a period of time. Widely used in occasions that require heat resistance, thermos bottle sealing ring, heat-resistant handle of pressure cooker ring.
  2. Cold resistance: the delay of ordinary rubber is -20°-30°, that is, silicone rubber still has good elasticity at -60°-70°, and some specially formulated silicone rubbers can also withstand extremely low temperatures, such as : Cryogenic sealing ring.

There are many advantages of silicone sealing rings. If you want to know more, you can contact us. After 19 years of development and production experience, we have a lot of experience in making and maintaining silicone products.

If you want to know more about customized silicone baby products information, welcome to visit on the company website to inquire:

Customers who want to develop custom silicone products are welcome to contact us at :
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