Certified Standards For Silicone O Ring
Silicone O Ring For Sale
- Retains flexibility over a temperature range of -60°C to 230°C
- Made from FDA-compliant materials, safe for food contact and pharmaceutical applications
- Resistant to ozone, UV radiation, and aging
- Hardness range covers 15 to 90 Shore A
- Precision molding process ensures dimensional consistency and reliable sealing performance
Legensilico Silicone O-Ring Supplier | High-Quality Custom Seals for Industrial & Food-Grade Use
Legensilico silicone O-rings are manufactured from high-quality silicone and can operate reliably over a wide temperature range from -50°C to +220°C. We offer silicone O-rings in a variety of standard sizes and can also customize diameters, hardness levels, and other specifications to meet specific requirements, covering everything from miniature precision seals to large industrial-grade O-rings.
In summary, whether used in static or dynamic sealing systems, Legensilico silicone O-rings ensure leak-free operation, an exceptionally long service life, and consistently outstanding performance.
Types of Legensilico Silicone O Rings
Legensilico standard silicone O rings are designed for general-purpose sealing applications, offering excellent flexibility, temperature resistance, and durability. They are widely used in industrial, automotive, and electronic systems for reliable leak-proof performance.
Legensilico custom silicone O rings are tailored to meet specific size, shape, hardness, and performance requirements. They are ideal for specialized equipment and unique sealing environments where standard O rings may not fit.
Legensilico food-grade silicone O rings are manufactured from FDA-compliant materials, ensuring safety for direct contact with food and beverages. They are commonly used in food processing, dairy, and pharmaceutical equipment.
Legensilico clear silicone O rings provide transparent sealing solutions where visibility and cleanliness are important. They are ideal for medical, laboratory, and food applications requiring visual inspection.
Legensilico black silicone O rings offer strong durability and resistance to environmental factors such as UV and ozone. They are widely used in industrial and outdoor applications where long-term performance is required.
Legensilico flat silicone O rings feature a non-circular cross-section, providing enhanced sealing surface contact. They are suitable for applications requiring improved sealing stability and reduced leakage.
Legensilico hollow silicone O rings are lightweight and highly compressible, making them ideal for low-pressure sealing applications where flexibility and easy deformation are needed.
Legensilico orange silicone O rings are commonly used for easy identification and often represent general-purpose or FDA-grade silicone materials. They combine visibility with reliable sealing performance.
Legensilico red silicone O rings are the most widely recognized standard silicone seals, offering excellent temperature resistance and flexibility for various industrial and commercial uses.
Legensilico high-temperature silicone O rings are engineered to withstand extreme heat conditions while maintaining elasticity and sealing integrity. They are ideal for engines, ovens, and high-heat industrial equipment.
Legensilico colored silicone O rings are available in a variety of colors for easy identification, sorting, and aesthetic purposes. They maintain the same sealing performance while improving operational efficiency.
Legensilico medical-grade silicone O-rings are manufactured from biocompatible materials that meet strict medical standards. They are suitable for use in healthcare devices, diagnostics, and pharmaceutical equipment.
Legensilico Silicone O-Ring – Precision Sealing Solutions for Diverse Applications
This is precisely because silicone O-rings offer excellent resistance to water, steam, acids, alkalis, solvents, and many other chemicals. Our silicone O-rings are widely used across various sectors, including industrial, food, medical, and consumer goods.
They can be used in engines, fuel systems, and sealing components. In electronic and electrical equipment, they provide insulation and moisture-proof sealing. They are also used in pumps, valves, compressors, and hydraulic systems. In food and beverage processing, they serve as sealing components for equipment, piping, and containers. They are also used in household appliances such as coffee makers, water purifiers, and various kitchen appliances.
Legensilico Silicone O Ring – High-Performance Sealing Solution
Excellent Heat Resistance – Performs well in dry heat environments up to 230°C
Low-Temperature Flexibility – Remains elastic down to -60°C
Good Chemical Resistance – Compatible with water, many chemicals, and weathering
Compression Set Resistance – Maintains seal integrity over time
Non-Toxic & Odorless – Safe for sensitive applications
Metal Detectable Options – X-ray detectable for food safety compliance
Color Customization – Available in FDA-approved colors
Peroxide or Platinum-Cured – Options for different performance requirements
ISO 9001 Certified Manufacturing – Consistent quality control
Material Certifications – NSF, FDA, UL, and European standards available
How We Turn Silicone Into Reliable Products
We support customized silicone products from mold design and material selection to mass production and final quality inspection.
- Manufacturing Process
- Technical Specification
| Material | Silicone (VMQ, PVMQ) |
| Hardness Range | Shore A 15 – 90 |
| Temperature Range | -60°C to +230°C |
| Color Options | Black, Red, Blue, Clear, Custom |
| Cure Systems | Peroxide-Cured / Platinum-Cured |
| Tensile Strength | 6–12 MPa |
| Elongation at Break | 200%–700% |
| Cross Section Profile | Round, square, rectangular, X, D, T, custom |
| Color Options | Transparent, red, black, blue, custom |
| Color | Red, orange, clear, translucent, white, black, custom |
| Cross Section Width (CS) | 0.5 to 20 mm (0.020 to 0.787 inch) |
| Inside Diameter (ID) | 0.7 to 2965 mm (0.028 to 116.732 inch) |
| Available Standards | FDA, NSF, USP Class VI, UL |
Legensilico silicone O rings are used to create reliable seals in both static and dynamic applications. They prevent leakage of liquids or gases in equipment such as pumps, valves, pipelines, medical devices, and food processing machinery.
Yes, silicone rubber is an excellent electrical insulator, making these O rings suitable for electronic and electrical sealing applications.
Yes, silicone O rings have good sealing performance in low-pressure and vacuum environments, especially where temperature resistance is required.
The HS code for silicone O rings is 4016.93.
When choosing between silicone and traditional rubber O-rings, the decision depends entirely on your application. Silicone excels in extreme temperatures (-60°C to 230°C+), offers excellent weather/UV resistance, and is FDA-compliant for food/medical use—but it tears easily and fails when exposed to oils or fuels. Nitrile (NBR) is the go-to for oil, fuel, and hydraulic systems with good strength and abrasion resistance, while EPDM handles water, steam, and outdoor weathering beautifully but cannot tolerate oils. Choose silicone for high heat, outdoor, or food applications; choose NBR for oil contact; choose EPDM for water and weather—just never mix them up.
