Rubber O Rings Manufacturers and Suppliers in Hong Kong

ISG Rubber Industries stands out as a leading manufacturer and supplier of high-quality rubber O rings and oil seals in Hong Kong, ISG Rubber Industries has a rich history in the rubber manufacturing industry. Established over two decades ago, the company has grown from a small local business to a renowned name in the market, not just in Hong Kong but across the world. Their journey is marked by a commitment to quality, innovation, and customer satisfaction.

ISG Rubber Industries offers an extensive range of rubber O rings, catering to different needs and applications. These include standard O rings, metric O rings, and custom-designed O rings to meet unique specifications.

The O rings are made from various materials such as nitrile rubber, silicone rubber, Viton, and EPDM. Each material is chosen based on its resistance to chemicals, temperature, and wear, ensuring that the O rings perform optimally in their intended environments.

An O-Ring is a mechanical gasket in round shaped used for packing & sealing, it is designed in such a way that it can fit in a groove and be compressed to give better sealing qualities.

O-Rings are the most preferred sealing component because of the low cost, ease to make & simple mounting requirements.

They are manufactured through a process known as molding

O-Rings are available in various sizes the most common of them being AS568, BS & JIS2401 to name a few. The O-Ring size constitutes of two main dimensions: Inner Diameter (ID) & Cross Section (CS).


Rubber O rings are essential in many industries, including automotive, aerospace, medical devices, and consumer electronics. They are used in sealing applications to prevent the leakage of fluids and gases, providing a reliable barrier in hydraulic systems, pumps, and engines.

ISG Rubber Industries also specializes in manufacturing oil seals, which are vital components in machinery that require lubrication. They offer a wide range of oil seals, including rotary shaft seals, mechanical seals, and bonded seals.

ISG Rubber Industries boasts state-of-the-art manufacturing facilities in Hong Kong, equipped with the latest machinery and technology. Their production lines are designed for efficiency, ensuring that they can meet large orders without compromising on quality.

Quality Control Measures : Quality is non-negotiable at ISG Rubber Industries. Every product undergoes rigorous testing and inspection at various stages of the manufacturing process. This includes material testing, dimensional checks, and performance evaluation to ensure that every O ring and oil seal meets the highest standards.

Environmental Responsibility : In addition to quality, ISG Rubber Industries is also committed to environmental sustainability. They have implemented eco-friendly practices in their manufacturing process, such as waste reduction, recycling, and energy-efficient operations.

Customization and Special Orders Custom Rubber O Rings : ISG Rubber Industries understands that one size does not fit all. They offer custom O rings tailored to specific dimensions, materials, and performance requirements. Whether you need O rings for a unique application or in a specific color, they can deliver.

Custom Oil Seals : Similar to their O rings, ISG Rubber Industries also provides custom oil seals. These seals can be designed to fit non-standard shafts or housings, or to operate in extreme conditions that standard seals cannot withstand.

How to Place Custom Orders : Placing a custom order with ISG Rubber Industries is a straightforward process. Customers can reach out with their specifications, and the team at ISG will work closely with them to design and produce the required components, ensuring timely delivery.

Industries Served : ISG Rubber Industries serves a wide range of industries, each with its own unique needs and challenges.

Automotive Industry : In the automotive sector, rubber O rings and oil seals are critical for ensuring the reliability and performance of vehicles. ISG Rubber Industries provides components that meet the stringent requirements of this industry, ensuring safety and durability.

Aerospace Industry : The aerospace industry demands precision and reliability, and ISG Rubber Industries delivers. Their products are used in various aerospace applications, where they help maintain the integrity of systems operating in extreme conditions.

Medical and Pharmaceutical Industry : In the medical and pharmaceutical industries, cleanliness and safety are paramount. ISG Rubber Industries manufactures O rings and oil seals that meet the strict hygiene standards required in these sectors, ensuring that they are safe for use in medical devices and equipment.

Consumer Electronics : In consumer electronics, rubber components like O rings play a vital role in sealing and protecting delicate electronics from dust, moisture, and other contaminants. ISG Rubber Industries provides high-quality seals that ensure the longevity and performance of these devices.

Other Industries : Beyond these sectors, ISG Rubber Industries also serves other industries such as manufacturing, heavy machinery, and marine. Their products are versatile and can be customized to meet the needs of virtually any application.

While based in Hong Kong, ISG Rubber Industries has an extensive distribution network that spans across the world. Their logistics team ensures that products are delivered on time, no matter where the client is located.

ISG Rubber Industries has established itself as a leading manufacturer and supplier of rubber O rings and oil seals in Hong Kong.

FAQs :
What is the typical lead time for orders?
ISG Rubber Industries typically offers a lead time of 2-4 weeks, depending on the order size and customization requirements.

How does ISG ensure the quality of its products?
ISG Rubber Industries employs rigorous quality control measures, including in-house testing and inspection, to ensure that every product meets the highest standards.

Can ISG Rubber Industries handle large-scale orders?
Yes, ISG Rubber Industries is equipped to handle large-scale orders, thanks to their state-of-the-art manufacturing facilities and efficient supply chain management.

How can I get a sample before placing an order?
You can request a sample by contacting ISG Rubber Industries directly. They offer samples for most of their products, allowing you to evaluate the quality before making a purchase.

Manufacturing Standards

With the right selection of material an O-Ring can be used in a varied media such as: Gas, Fuel, Chemical, Water, Lubricants Etc.

Other than the standard sizes, ISG is able to offer O-Rings in non-standard sizes as per the customer requirement & application.

ISG can offer O-Rings various polymers some of which are below

  • NITRILE (NBR)
  • FKM
  • SILICONE (VMQ)
  • Chloroprene (CR)
  • EPDM
  • HNBR
  • FLUOROSILICONE (FVMQ)
  • PERFLUOROELASTOMER (FFKM)
  • AFLAS (TFE/P)

O-Rings in all above material can be produced in regular hardness ( 70 / 75 / 90 ) Shore A.

With a very sound compounding knowledge ISG can produce orings in various other hardness as per customer & application requirements.

Technical Datasheets

1.NBR 70 Technical Datasheet Download
2.NBR 90 Technical Datasheet Download
3.CHLOROPRENE 70 Technical Datasheet Download
4.FKM 75 Technical Datasheet Download
5.FKM 90 Technical Datasheet Download
6.SILICON 70 Technical Datasheet Download