Silicone O-Ring Manufacturer in China

Yoson is a professional provider of custom sealing solutions. We offer rubber O-rings and a full range of silicone that is very useful for different industries of automotive, electronic home appliances, and food & drug. For more than 10 years in our business, our solutions have provided reliable and great success for different customers globally.

  • Advanced Technology
  • Quality Service
  • Excellent Support
  • High-Quality Products
  • Custom Professionalism

Yoson Silicone O-ring Manufacturer in China

Silicon O-rings may provide a thousand applications. It can be used for enclosures, medical devices, waterproof camera housing, automobiles, Genset, hydraulics, and many more. Silicon rubber can be available from 10 durometers to 70 durometers.

For a gasket with a large cross-section that is easily stretched, the 10 and 20 durometers of silicone O-rings are the best grades. Custom O-rings can resort to as pre-formed O-rings or molded ones.

EMI / RFI Silicone O-ring

Yoson EMI RFI is a particle-filled silicone shielding product that reaches the conductive elastomeric shielding gasket standards. EMI / RFI silicone O-rings meet the commercial requirements for aerospace, electronic application, satellite communications, unmanned system, and other applications. EMI RFI products also meet the standard for shielding gasket conductive elastomers.

FDA silicone o ring

Food grade silicone is used to ensure that the silicone seal will not cause any harm to human body, and it has passed the FDA food grade silicone testing standard, tasteless and non-toxic. You can use it on your food equipment without worry. Long service life without aging. Good elasticity, no deformation in stretching, no yellowing, no fading. Yoson can make any shape for your silicone seals.

Medical Silicone O ring

Silicone oring is safe and environmentally friendly, and can meet the medical health standards, used in medical equipment, less interference by the external environment, long-term use does not yellow, do not fade. It can play a complete sealing role, waterproof and moisture-proof also can do not leak. Non-toxic and harmless to human body, no irritating odor, good isolation effect.

Faucet Silicone O-ring

The silicone O-ring for the faucet is abrasion and heat resistant. These also feature high pressure, high-temperature resistance, wear resistance, and rust prevention. Faucet silicone O-ring is not only applicable on faucets but can be also a great used for garages, machinery, doors, bearings, carrier wheels, ordinary water pipes, workshops, windows, pumps, electrical appliances, and many more.

different hardness silicone o ring

We can provide hardness of 30 Shore A, 40 Shore A, 50 Shore A, 60 Shore A, 70 Shore A, etc. The common ones are between 40 Shore A and 70 Shore A. Color: translucent, cream, light yellow, gray, red, blue or custom color. Made of silicone synthetic rubber and use for different variety of fluids and chemicals.

Compressor Valve Silicone O-ring

The compressor valve silicone O-ring offers different advantages. These O-rings are made with durable silicone, temperature resistance, strong sealing, waterproof, ozone resistance, and can be also insulated. Comes in different sizes and can be made for custom. A silicone O-ring that is commonly seen in flanges, valves, engines, and other various cylinders.


Our silicone O-rings have good resistance to weather, saltwater, ozone, detergent, engine transmission oil, hydraulic fluids, chlorinated hydrocarbons, and many other substances.

Wide Application
Wide Application

Yoson O-rings provide a fluid and pressure sealing for some overlapping mating surfaces such as faucets, valves, engines, flanges, hydraulic cylinders, and other various cylinders.

Quality Standard
Quality Standard

The silicone O-ring from Yoson meets the Aerospace Size and Quality Standards. Yoson is offering different shore durometers for their O-ring products ranging from 10-7A.


As a leading manufacturer in China, Yoson accepts all specifications that our client specifically ordered. We can customize according to sizes, colors, and kinds of materials.

Custom Silicon Approval

By using production processes and the specialized compounds, Yoson can build custom silicone gaskets, silicone O-rings, and silicone seals that reach the range of regulatory and industrial standards, including:

  • Class VI
  • FDA
  • UL
  • 3/A
  • Mil-Spec
Custom Silicon Approval
Silicon O-ring Packaging

Silicon O-ring Packaging

With our private barcoding, labeling, and kitting, we can support and provide our clients with packaging needs.

  • Ultrasonic cleaning
  • Military Packaging (MIL-P-4861)
  • O-Ring and seal cleaning
  • Kitting, Private labeling
  • Nitrogen purged packaging
  • Barcoding

Silicone O-ring Properties

Yoson uses high-quality silicone rubber materials for the production of silicone O-rings. These kinds of materials have extreme environmental resistance, stable, and non-reactive properties. It ensures to withstand temperature variations up to 450°F or 232°C without losing its useful properties.

Because of the high-temperature tolerance and brittle resistance of silicone materials, it can be useful for manufacturing and molding. Silicone rubber is frequently & commonly used in the production of gaskets, seals, and O-rings.

Silicone O-ring Properties

Choose Yoson to Provide Your Silicone O-ring and Gaskets Needs

silicone o ring

After more than 10 years of providing silicone O-rings and gaskets for sealing solutions, we clearly understand that sealings are very important to obtain successful production in the field of different industrial plants and other applications. That’s why Yoson continually establishes abilities to supply high-quality silicone rubber sealings that can perform in extreme temperatures and meet the requirements of our valued clients.

With our fully automatic equipment for production, we can ensure to provide a wide variation of silicone O-rings with maximized production outputs. For the excellent services and quality products that our company provides, we are now a non-stop supplier in over 120 countries worldwide and become a trusted partner for some business sectors.

Yoson Silicone O-ring and Gaskets

Silicone O-ring Characteristics

Silicone has different O-ring characteristics and standards. Here is the list:

  • Standard hardness:70 durometers, Shore A
  • Hardness range: 30-80 durometers, Shore A
  • Standard Color: translucent, rust/orange, custom colors
  • Temperature range: -60°C to 232°C and -75° to 450°F
Silicone O-ring and Gasket Properties

Silicon-type O-rings are very useful in different kinds of industrial applications. Check the advanced properties of Silicon below.

  • Excellent water sealing
  • Stable from Ozone and UV
  • High and low temperature
  • Excellent oxidation resistance
  • Good compression resistance

Custom Silicone O-ring to Skyrocket Your Business

Silicone O-ring for Transportation

Silicone O-ring and gasket sealings are a very important matter for the industry of transportation like aerospace, heavy-duty trucking, and passenger automotive. The extreme temperatures, vibration, and chemical exposure are some factors that are considered in selecting the specific elastomeric properties of silicone O-rings.

Silicone O-ring for Oil & Gas Industry

The storage tank, fittings, valves, dispensers, and gas pumps for the oil & gas industry need excellent sealing solutions that can resist high compression, noxious chemicals, and extreme temperatures. Yoson special compounds made for silicone O-rings can assure chemical and heat resistance.

Silicone O-ring for Food & Beverages

In food & beverages companies like filtration markets, beverage dispensing, and food processing – Yoson can provide a silicone type of O-rings that pass the NSF-61 Certified O-rings standards and Special 3A Sanitary standards. That’s why Yoson is the ideal provider for different types of O-rings.

YOSON – Leading Silicone O-ring and Gasket Supplier in Chin
YOSON – Leading Silicone O-ring and Gasket Supplier in China

With over 10 years of experience, we become a professional manufacturer of silicone O-rings. Providing excellent customer service and great quality products!

  • I’ve been amazed by the capacity of Yoson to provide my specific custom silicone O-rings. It’s perfectly made. Good job Yoson!

  • Compare to my first supplier of O-rings, Yoson is a much better provider for me. The rapid response and good services they provide are incredibly amazing!

  • The capabilities of Yoson to provide a quality O-rings for a low price give me better advantage for the small business of mine. Thanks to Yoson.

Silicone O ring

It is mainly used for waterproof sealing and preservation of daily products such as preservation box, rice cooker, water dispenser, lunch box, heat preservation box, heat preservation box, water cup, oven, magnetized cup, coffee pot, etc.

It can be used for a long time in the temperature range of -60 degrees~+200 degrees.


  • Excellent sealing performance, waterproof and no leakage.
  • Good preservation effect, completely non-toxic and tasteless.
  •  Can be placed under high and strong temperature heating, no deformation, no harmful substances.
  •  Good anti-tension performance, after special inspection test.
  • Long-term use does not yellow or fade.
  • Corona resistance, arc resistance, high and low temperature resistance, good aging resistance, high temperature resistance, in line with FDA and SGS standards.


Heat resistance: Silicone rubber has much better heat resistance than ordinary rubber, can be used almost forever at 150° without performance change, can be used continuously at 200° for 10,000 hours, and can be used for a period of time at 350°. Widely used in applications requiring heat resistance, hot water bottle seal, pressure cooker ring heat resistant handle.
Cold resistance: ordinary rubber late point of -20 ° -30 °, that is, silicone rubber still has good elasticity at -60 ° -70 °, some special formulations of silicone rubber can also withstand extremely low temperatures, such as: low temperature seals.


Not recommended for use in most thick shrinkage of solvents, oils, thick shrinkage of acids and diluted hydroxide
Materials of silicone seals
Silicone is becoming more and more popular because of its environmental performance. To understand the knowledge of silicone products, we have to start from the raw materials of silicone.

Solid silicone is mainly used for molded products. For example: silicone sleeves, silicone tableware, silicone buttons, etc. Liquid silicone is mainly used for extrusion molding products, such as silicone pacifiers, silicone tubes, etc.

Insulation silicone pad, excellent high temperature resistance, silicone (food grade silicone) can withstand 200 ℃ high temperature and can be used for a long time, the production of raw materials in line with SGS standards, through the FDA food grade silicone testing standards, tasteless and non-toxic, manufacturers according to the mold production, color, shape can be customized.


1、Silicone products are indispensable components for making copiers, keyboards, electronic dictionaries, remote controls, toys, silicone keys, etc.
2、It can be used to make durable shaped molding gaskets, packaging materials for electronic parts, maintenance materials for automotive electronic parts.
3、It can be used to make electronic components, molded high point pressure edge sub.
4、It can be used to make conductive silica gel, medical silica gel, foam silica gel, mold making silica gel, etc.
5、It can be used in the construction and repair of houses, sealing of high speed kilometer joints, sealing of bridges and other sealing projects.
6、It can be used for baby products, mother and baby products, baby bottles, bottle protectors.
7、Can be used for kitchen products, kitchenware production and related auxiliary kitchenware products
8、Can be used for medical equipment accessories, due to the colorless and tasteless characteristics of silicone used in the medical industry

If you need to find supplier for Silicone O ring or Silicone seals, please feel free contact us.

We can help you to solve your sealing problems.

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