Silicone O-ring

Why Choose Us

Our certificate

We have approved the Quality and Environment System ISO9001:2015 and ISO 14001:2015.all of the raw materials meet the ROHS, REACH, and PAHS, and most of our products have been approved by the NSF, FDA, LFGB, ACS, KTW-W270, WRAS, and UL.

Advanced Equipment

We have advanced production equipment and testing equipment such as automatic feeding machines, automatic packaging machines, injection molding machines, automatic feeding machines, automatic sorting machines, intelligent cutting machines, perform machines, etc.

Quality Control

After completion of manufacturing, the sealing ring needs to undergo appearance inspection, dimensional inspection, pressure test, media resistance test, air tightness, hardness, tensile strength, elongation, tearing performance, compression deformation under high and low temperatures, aging resistance, Water resistance, corrosion, and other inspection items to ensure that the quality meets standard requirements.

Quality customer service

Our dedicated team is always ready to answer your questions, provide you with detailed information about our products and guide you in your choice. We understand that every customer is unique.

What is Silicone O-Ring

Silicone Rubber O-rings (Q, MQ, VMQ O-rings, PVMQ O-rings) Physically, Silicone O-rings are based on silicon, an element derived from quartz. Silicone O-rings have excellent heat, ozone and corona resistance, are very well dielectric stability. Silicone O-rings are resistant to many oils, chemicals, and solvents.

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Benefits of Silicone O-Ring

Versatility

Rubber silicone O-rings are versatile and can be used in various applications due to their excellent properties and performance. These O-rings can function effectively under extreme temperatures, pressure differentials, and chemical exposures, making them suitable for use in diverse industries.

Durability

Silicone O-rings are durable and can withstand continuous compression and deformation without losing their sealing properties. This makes them suitable for use in dynamic sealing applications that involve constant movement or deformation.

Affordability

Silicone O-rings are relatively affordable compared to other sealing materials, making them an excellent choice for cost-sensitive applications. Despite their affordability, these O-rings offer excellent performance and reliability.

Biocompatibility

Silicone is biocompatible, making silicone O ring widely used in food and medical application.Melon,We are a leading manufacturer of rubber silicone seals and gaskets in China, providing top-quality products at competitive prices. Our range includes standard seals and gaskets as well as custom-designed products tailored to your specific requirements.

What are the Applications of Silicone O-Ring

Automotive Industry

Rubber silicone O-rings are widely used in the automotive industry due to their excellent properties and performance. These O-rings can be found in engines, transmissions, fuel systems, and other critical components that require reliable sealing under high temperatures and pressures.

Aerospace Industry

The aerospace industry also relies on silicone O-rings for their sealing needs. These O-rings are used in aircraft engines, hydraulic systems, and fuel systems, where they can withstand extreme temperatures and pressure differentials.

Medical Industry

Silicone O-rings are also used in medical applications due to their biocompatibility and resistance to high temperatures and sterilization processes. These O-rings can be found in medical devices, such as implantable devices, surgical instruments, and drug delivery systems.

Food and Beverage Industry

Silicone O-rings are suitable for food and beverage processing equipment due to their resistance to high temperatures and chemicals. These O-rings can be found in pumps, valves, and other sealing applications that involve contact with food or beverages.

Industrial Applications

Silicone O-rings are widely used in various industrial applications that require reliable sealing under harsh conditions. These applications include pumps, compressors, HVAC systems, and hydraulic systems, among others.

How to Choose Silicone O-Ring

Different Types and Forms of Silicone
Depending on its viscosity and the method employed for processing, silicone rubber is available in four main forms Fluorosilicone Rubber or FSR, is a durable, stable, long-lasting elastomer. Its most familiar application is for seals and O-rings, but it is also found in aerospace fuel system components, diaphragms, gaskets, and hose linings.

Excellent Resistance Properties
Silicone is well-regarded for its high-performance properties. It provides thermal stability, flexibility, temperature resistance, and durability. The material functions in temperatures between -150°F and 550°F before it becomes too brittle or begins to melt. Additionally, it rebounds and compresses very well, with high tensile strength with a low compression set, making it ideal for compression force sealing and working among high-temperature extremes and pressures.The material also offers heat and flame resistance which makes it an excellent electrical insulator. It bonds well with other metals, too. Because of its UV, ozone, and weather resistance properties, silicone performs admirably in outdoor conditions.

Easily Customized to Meet Application Requirements
Because silicone's base inorganic and organic properties offer stability when groups of organic molecules like methyl are added the material can be customized to meet certain application requirements. Methyl groups, under the name MQ, are the basic silicone rubbers that were first developed. They feature several variants with certain traits depending on the application. Methyl vinyl groups (VMQ) have good compression traits. Methyl phenyl (MPQ) and methyl phenyl vinyl (PVMQ) groups are used to increase silicone's capabilities in low temperatures. Flouro, vinyl, and methyl (FVMQ) groups are used in applications that require more chemical resistance to oil, fuel, and solvents, such as O-rings, seals, and gaskets.

Silicone O-Ring Features

Elasticity and wear resistance

The main features of Silicone O-Ring are its high elasticity and wear resistance. It has good resilience and is able to withstand deformation under long-term use and high-pressure environments, maintaining its stable performance even under extreme temperature conditions. In addition, it has excellent wear resistance, effectively resisting friction and wear.

High temperature resistance

Silicone O-Ring has excellent high temperature resistance. It can be used in high temperature environments for a long time without losing its physical properties, so it is widely used in industries such as automotive, aerospace, petroleum and chemical industries. Its high temperature resistance makes it ideal as a sealing material.

High degree of sealing

The high degree of sealing of Silicone O-Ring is one of the main reasons why it is favored in various industries. Its elastic structure can provide excellent sealing effect, ensuring that liquids, gases and other media will not leak or leak. This makes Silicone O-Ring widely used in various application scenarios such as automobile manufacturing, medical field, chemical industry, etc.

Resistance to chemical corrosion

Silicone O-Ring has excellent resistance to chemical corrosion. It can effectively resist the attack of acids, alkalis, solvents and other chemicals, so it is widely used in chemical, pharmaceutical and food processing industries. It ensures the stability and durability of the sealing system, thereby protecting the normal operation of equipment in harsh environments.

How a Silicone O-Ring Works

Silicone O-Ring seals are capable of sealing at relatively high pressures because they are compressed or “activated” when pressurized - as the pressure is applied to the o-ring it deforms in the gland or groove. As a silicone o-ring deforms between two flat and smooth surfaces, it presses into the gland walls and seal joint. The compression energizes the seal and creates a mechanical barrier blocking fluids from passing through; this restrained condition allows a silicone o-ring to seal at higher pressures than many flat face gaskets. (View the blog post Seal Design-3 Considerations for more details about design and material considerations.)

Process of Silicone O-Ring

The manufacturing process of silicone rubber O-rings is relatively simple and mainly includes several key steps. First, high-quality silicone rubber materials are selected, and rubber blanks are obtained through mixing and stirring. Next, a die is used to extrude the rubber blank into a circle, creating the basic shape of an O-ring. Finally, through high temperature and pressure treatment, the rubber is cured to form a finished silicone rubber O-ring.

How to Maintain Silicone O-Ring

Ensure Proper Installation

One of the tips that you must do to take care of your Silicone O-Ring is to install them properly. When installing Silicone O-Ring on your specific component, you must make sure that the gland or groove will be free from any metallic materials. The absence of metallic materials can ensure that the Silicone O-Ring will not be cut or pierced during their usage. Your Silicone O-Ring must likewise be installed without torquing or twisting them, ensuring that they can seal the components uniformly.

Conduct Detailed Inspection

Even though Silicone O-Ring are installed properly, they must still be assessed and inspected regularly. Once notable issues are found, then they must be fixed or replaced right away. One of the issues that your Silicone O-Ring may possess is chemical damages. Silicone O-Ring with chemical damages will typically show signs of cracking, discolouration, or blistering. Other issues that your Silicone O-Ring may have are swelling, thermal degradation, extrusion, and degradation.

Apply Adequate Lubricant

Another tip that you should do take care of your Silicone O-Ring is to apply an adequate amount and type of lubricant. Lubrication of Silicone O-Ring is vital since it can prevent them from obtaining damages easily. It can likewise extend their service life, helping you save a lot of money on replacements and repairs. Once the lubricant dries out, the O-rings may easily obtain truly irreversible damages. Worse, the components that are being sealed may also obtain problems that can affect your entire operations.

Practice Suitable Cleaning!

Aside from installing and lubricating them properly, you must also ensure that the Silicone O-Ring will be cleaned regularly. Silicone O-Ring must be cleaned with soap and water so that they can maintain their primary functions without damaging their surfaces. Utilising solvents like trichloroethylene and carbon tetrachloride is not recommended for these sealing materials since they can be harmful to their surfaces. Sharp tools and brushes are likewise not recommended when cleaning the Silicone O-Ring.

Our Factory

We are a major rubber sealing products manufacturer with advanced research and development, manufacturing, and sales. We have approved the Quality and Environment System ISO9001:2015 and ISO 14001:2015.Our products are extensively applied to Food and Drinking Water Sanitary and bathing products, electronic and electric appliances hardware and machinery Auto parts, etc.We are professionally specialized in rubber O-rings, Y-seals, Shower gaskets, RO membrane seals, Silicone tubes, and other industries' customized rubber parts.To further increase the quality, all of the raw materials meet the ROHS, REACH, and PAHS, and most of our products have been approved by the NSF, FDA, LFGB, ACS, KTW-W270, WRAS, and UL.

Certificate

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FAQ

Q: What are silicone O-rings used for?

A: Silicone o-rings are known for their retention of flexibility and low compression set characteristics within one of the widest working temperature ranges of all elastomers. These properties, among others, make silicone a key material for applications in medical, automotive, aerospace, electronics, and more.

Q: Are silicone O-rings good for oil?

A: Silicone O-rings are resistant to many oils, chemicals, and solvents. The silicone O-rings possess the best flexible property at low temperatures, but it also have some weakness like low tensile strength, poor tear strength and wear resistance.The answer to the question of whether silicone rings will stretch is yes, and that is by design.

Q: Can I use silicone instead of an O-ring?

A: Silicone is an elastomer that remains stable, flexible, and non-reactive in extreme conditions, making it ideal for seals, gaskets, and O-ringsThese high energy silicon-oxygen bonds make silicone more resistant to heat than many other elastomeric materials. This inorganic backbone also makes silicone more resistant to fungus and gives it excellent weathering properties. Silicone's strength is not adversely affected by the choice of colour.

Q: Should a silicone ring fit tight?

A: Silicone rings also stretch once you start wearing them, so having it be on the tighter side initially helps it stretch to the perfect fit over time. However, you don't want your ring to be so tight that it feels uncomfortable.Viton rubber is known for its excellent resistance to a wide range of chemicals and fluids. Silicone rubber has good resistance to water, but it may not be suitable for certain aggressive chemicals.

Q: Can I use Vaseline instead of O-ring lube?

A: This is EPDM's Achilles heel in a straight comparison with nitrile.Vaseline and any oil base grease will break down the Nitrile Butadiene Rubber in 6 months to a year. Oils, like olive oil or WD40 or 3-in-1 oils are too thin and will not stay in place for long at all. There is NO suitable substitute for Silicone Grease.

Q: How snug should a silicone ring fit?

A: When trying on a silicone ring, it should fit snugly but not too tight so that there is still some air - otherwise, you may develop a red rash. The ring shouldn't interfere with blood flow, make you uncomfortable, or leave an impression on your skin when removed.

Q: Which is better Viton or silicone?

A: Viton (FKM) o-rings are another popular choice. They are noted for their resistance to chemicals and high temperatures, surpassing silicone in certain aspects. However, FKM o-rings can't match silicone's flexibility at low temperatures or its electrically insulating properties.

Q: Can you put WD40 silicone on O-rings?

A: If you put WD-40 on o-rings, it will clean them, but it will also dry them out and eventually ruin them, especially if you do not put silicone grease on them afterward.Viton shines when it comes to chemical and heat resistance. It's also got a good mechanical strength. But, it's not as flexible as Silicone, especially at lower temperatures, and it can be more expensive.

Q: What is the strongest O ring material?

A: Perfluoroelastomer (FFKM) is a high-performance 'O' ring material that offers exceptional chemical and thermal resistance. The carbon-fluorine bonds of FFKM – known to be the strongest single bond in organic chemistry – are what give FFKM its superlative chemical, thermal and oxidation resistance.

Q: Is silicone grease bad for O-rings?

A: For silicone o-rings, you should not use petroleum or silicone products. For Buna-N (aka Nitrile), you can use both petroleum and silicone products!Once it's removed, clean both the o ring and the area around the o ring, including the flanges and grooves where the o rings are seated, discarding any excess grease/lubricant, and dirt and debris. Note: Only water and a mild detergent should be used on the o ring.

Q: Can you stretch a silicone ring to make it bigger?

A: Silicone Rings and Stretch
Because of the chemical makeup, that material is capable of stretching just enough to be comfortable and allow the ring to move with your fingers. Silicone rings are ideal for everyday wear because they can adjust as your fingers swell and shrink throughout the day.

Q: What size should I order in a silicone ring?

A: Obviously if you already know your ring size from recently having it measured at a jewelry store, you can just translate that size to your silicone ring. If it's a half size, we recommend going down to the next lowest whole size for that slightly snug fit as mentioned above.

Q: Can you wear a silicone ring 24 7?

A: For many people silicone rings offer a great option when a traditional metal ring is not safe to wear or is at risk of getting damaged, such as at work or while playing sports. However, many people ask the question, “Can you wear silicone rings all the time?” and the answer to that is definitely yes.

Q: Can silicone rings be cut off?

A: Silicone wedding bands will break on their own or can easily be cut off your finger in an emergency. Because they are lightweight and bendable, they are comfortable and ideal for those with active lifestyles. It's incredibly rare to have a silicone allergy, so those with sensitive skin can wear them without any issues.

Q: How do you know if your silicone ring is too small?

A: While a snug fit is important, a tight fit isn't what you want. When you first put on your silicone ring it should not be difficult to get it on your finger at first, and it should definitely not be difficult or even impossible to get off. Both of these would be signs that your ring size is too small.

Q: Are silicone O-rings good?

A: Offering thermal stability, flexibility, durability, and resistance to water and temperature extremes, UV, and ozone, silicone is valued for its many diverse mechanical properties which make it the leading material of choice for O-rings and other sealing products.

Q: What is the best O ring for gasoline?

A: Parker Buna Nitrile (NBR) O-rings | Sealing Devices
Buna-N O-rings, also known as Nitrile or NBR O-rings, offer excellent sealing and mechanical properties at a low cost. Buna O-rings have resistance to common lubricants and are recommended for crude oil, gasoline, propane, petroleum oils and water.The reason for this comes down to the properties of Viton (especially the temperature range as well as its chemical and environmental resistances) which means it will last longer than nitrile in tougher conditions.

Q: Does the color of an O-ring mean anything?

A: Certain colors are chosen to indicate the temperature and chemical resistance of the o-ring material. This is crucial information for industries where exposure to extreme temperatures or harsh chemicals is common.When an o-ring is exposed to high temperatures, swell, overly high compression or other major stresses, it can lose its elasticity and become unable to return to its original shape. This will cause the o-ring to develop flat surfaces on both sides of the cross-section, making it unable to properly seal.

Q: Is white lithium grease safe for O-rings?

A: Lithium-based lubricants are used in cars and machinery in general. It's not advisable to use them on plastic parts. As lithium is based on petroleum, it tends to speed up the decay of rubber and plastic components.As mentioned above, and unlike lithium grease, silicone lubricant is the perfect lubricant for rubber surfaces, but it is also extremely versatile, so it can be used on most other materials, including metal, plastic, wood, and even painted materials.

Q: Will silicone grease damage rubber?

A: Silicone grease is commonly used for lubricating and preserving many types of rubber parts, such as O-rings, without swelling or softening the rubber, but is contraindicated for silicone rubber due to these factors. It functions well as a corrosion inhibitor and lubricant on non-metal-metal contact areas.

As one of the most professional silicone o-ring manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized silicone o-ring at competitive price from our factory.

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