top of page


O-Rings are simple yet highly effective sealing devices commonly used to prevent fluid or gas leakage in various mechanical and engineering applications. Shaped like a torus, these circular rubber or elastomeric rings create a reliable seal between two mating surfaces when compressed.

Key features and characteristics of O-Rings include:


  1. Material Variety: O-Rings are available in a wide range of materials, including nitrile (NBR), silicone (VMQ), fluorocarbon (FKM or Viton®), EPDM, and others. The choice of material depends on the application's requirements, such as temperature, chemical compatibility, and pressure.

  2. Resilience: O-Rings are designed to deform and adapt to the shape of the mating surfaces, ensuring a tight and effective seal even under slight irregularities.

  3. Versatility: O-Rings find application in a diverse array of industries, including automotive, aerospace, hydraulic systems, pumps, plumbing, medical devices, and many more.

  4. Temperature and Chemical Resistance: O-Rings made from suitable materials can withstand a wide range of temperatures and offer resistance to various chemicals, ensuring long-lasting performance in demanding environments.

  5. Size and Customization: O-Rings are available in various standard sizes, but they can also be customized to meet specific application requirements.

  6. Easy Installation: O-Rings are simple to install, making them a popular choice for sealing applications where efficiency and ease of use are crucial.

  7. Cost-Effective: O-Rings provide an economical sealing solution, reducing the need for complex sealing mechanisms and minimizing maintenance costs.

  8. Compression Set Resistance: High-quality O-Rings exhibit excellent compression set resistance, meaning they can maintain their original shape and sealing properties over prolonged use and under compression.

  9. Static and Dynamic Sealing: O-Rings can be used for both static sealing (when there is no relative motion between the mating surfaces) and dynamic sealing (when there is relative motion, such as in reciprocating or rotating applications).

  10. Wide Operating Range: Depending on the material used, O-Rings can function in a broad operating temperature and pressure range, making them suitable for diverse applications.

O-Rings are one of the most widely used sealing solutions due to their simplicity, effectiveness, and reliability. Their ability to create a dependable seal between moving or stationary parts makes them an indispensable component in various industrial, automotive, and consumer products.


NBR O-Rings, made from Nitrile Butadiene Rubber, are versatile sealing rings designed to prevent fluid or gas leakage in a wide range of applications. NBR O-Rings offer excellent resistance to oils, fuels, and many chemicals, making them well-suited for sealing tasks in automotive, hydraulic, and industrial systems. With a Shore A hardness range of 40 to 90, NBR O-Rings provide a reliable and cost-effective sealing solution that can withstand a variety of operating conditions.


Silicone O-Rings, manufactured from high-quality silicone rubber, offer excellent flexibility and temperature resistance, making them ideal for a wide range of sealing applications. With a Shore A hardness range of 30 to 80, Silicone O-Rings provide reliable sealing in both low and high-temperature environments. Their exceptional biocompatibility and electrical insulating properties also make them suitable for use in medical devices and electronics. Whether in industrial, automotive, or medical settings, Silicone O-Rings ensure dependable and long-lasting sealing performance.


HNBR O-Rings, crafted from Hydrogenated Nitrile Butadiene Rubber, are robust sealing rings known for their excellent resistance to chemicals, oils, and high temperatures. With a Shore A hardness range of 70 to 90, HNBR O-Rings provide reliable sealing in challenging environments, making them ideal for automotive, oil and gas, and industrial applications. Their superior mechanical properties and durability ensure long-lasting performance and reduced maintenance, making HNBR O-Rings a trusted choice for critical sealing needs.


Polyurethane O-Rings are versatile sealing rings made from a durable elastomeric material with excellent mechanical properties. These O-Rings exhibit high abrasion resistance, tear strength, and flexibility, making them suitable for a wide range of dynamic sealing applications. With their ability to withstand varying temperatures and challenging environments, Polyurethane O-Rings offer reliable sealing solutions in industries such as hydraulics, pneumatics, and heavy machinery. Their resilience and longevity ensure optimal performance, reducing maintenance requirements and enhancing equipment efficiency.


EPDM O-Rings, crafted from Ethylene Propylene Diene Monomer rubber, are reliable sealing rings known for their exceptional resistance to weathering, ozone, and UV exposure. With a Shore A hardness range of 40 to 90, EPDM O-Rings are ideal for outdoor and automotive applications, as well as in various industries where sealing against environmental elements is critical. Their impressive temperature stability and durability make them a popular choice for a wide array of sealing needs.


FKM O-Rings, composed of Fluoroelastomer rubber, are premium sealing rings known for their outstanding resistance to high temperatures, chemicals, and oils. With a Shore A hardness range of 60 to 90, FKM O-Rings are designed to endure extreme conditions, making them essential for sealing critical applications in aerospace, oil and gas, and automotive industries. Their excellent performance and durability ensure reliable sealing and protection against harsh environments and aggressive substances.


PTFE O-Rings are advanced sealing rings made from Polytetrafluoroethylene, known for their exceptional chemical resistance and high-temperature capabilities. These non-stick and low-friction O-Rings provide reliable and long-lasting sealing in aggressive chemical environments, making them a preferred choice for various industrial applications. With their superior performance, PTFE O-Rings ensure leak-free sealing, even in the most challenging operating conditions.

Special Compounds

Special compound O-Rings, such as Aflas and Kalrez, are high-performance sealing rings designed for extreme and demanding applications. Aflas O-Rings are made from a unique fluoroelastomer with exceptional chemical and heat resistance, making them ideal for aggressive chemical processing environments. Kalrez O-Rings, on the other hand, are composed of perfluoroelastomer, providing outstanding resistance to high temperatures and aggressive chemicals found in critical industries like semiconductor manufacturing and aerospace. These specialized O-Rings offer unparalleled reliability, ensuring leak-free sealing in the harshest conditions, where standard elastomers may not perform optimally.

Inquire about your O-Rings needs now !

Beiusului nr.5, Cluj-Napoca, 400394 Romania

Thanks for submitting!

bottom of page