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Medical Grade Seals

When looking at your options for gaskets and seals, you’ll see that some products are marked as medical grade. These seals offer a range of extra benefits and features when compared to your typical seals, and they are required for many different types of processes....

O Ring Face Seals

While you may be familiar with O-rings, these come in various types, which offer benefits to a range of manufacturing applications. Sometimes called a toric joint, O-rings work to seal the area between two different joined parts. This means that even when working at...

Straight Thread Tube Fitting O-Rings

When looking at the types of O-rings on offer for your manufacturing processes, you might be wondering which would be the best solution for your unique needs. Today we’re going to take a deeper look into what straight thread tube fitting O-rings are and how we can...

Can You Use Corrugated Gaskets Instead of Spiral Wound Gaskets?

If you’ve always relied on spiral wound gaskets in the past, you might be wondering if there is an alternative option on offer. Corrugated gaskets offer many benefits over spiral wound gaskets, which is why so many companies are opting to switch between these two...

What is a Wiper Seal?

An important component that’s often overlooked by businesses and manufacturers is the wiper seal. If you are wondering what a wiper seal is, today we’re going to discover why you need to use them and how they can support your work. Go to the homepage for more...

How to Choose the Right Seal for Electric Motors

When choosing a seal for your electric motors, there are many options on the market. Finding the right electric motor shaft seal is critical to ensure your customers are happy and that your vehicles fit their needs. Keep reading to discover how to choose the right...

Why Should You Invest in Quality Seals?

While industrial seals might seem like something you could save a little money on, this is one part that we don’t recommend cutting costs on. A quality seal will offer many benefits to your business and operations, so it’s worth taking the time to find a solution...

All you need to know about Neoprene O rings

Popular in the refrigeration industry, neoprene o rings are also growing in popularity across a wide range of other sectors due to their incredible resistance to hazardous materials. Also known as chloroquine o rings, these o rings provide excellent resistance to...

Why all sealants are not the same

It's important to understand just how critical it is to use the correct type of sealant. It's especially the case when working with heavy machinery or any industrial situation. You don't want to have to worry about whether your sealing products are working correctly...

How to understand O-rings and their design

O-Rings are a critical component for the proper sealing of specific pipes. They have to sit within a specified groove, which can vary based on the hardware used. That's why it's important to note the various types of o-ring groove design to understand better what kind...

O Ring Materials Selection

O Ring Materials SelectionThis is a quick overview of the various O-Ring materials that are available for applications and found at select UK O-Ring suppliers. When it comes to Specialist Sealing Products, it is a good idea to be clued into every option that is on the market. The materials can range from the common O-Ring with Shore 70A hardness to more complex elastomeric items.

This list will give any engineer a brief understanding of how to make the correct O-Ring selection for their application.

O-Ring Requirements

Some of the factors to take into consideration when choosing the right O-Ring are:

  • Temperatures to which the application will be subjected
  • Pressure, the seals, will encounter
  • If the application chemicals will be compatible with the O-Ring material
  • What size and budget restraints are required
  • Durometer readings

Once the engineer knows these key points, it will be possible to determine the correct O-Ring material that is suitable. If there is any doubt that the standard materials aren’t acceptable for an application that demands extreme performance or environment, a customised specialist material can be designed.

Common O-Ring Materials

All O-rings are manufactured from an elastomeric material. However, they have many different formulaic compositions that change the function specifications.

The more common O-Ring materials are:

  • Nitrile, or NBR
  • Viton®, or FKM
  • Silicone
  • Neoprene
  • EPDM

Nitrile/NBR/Perbunan: If there is one substance O-Rings must be able to tolerate, it is lubricants. Nitrile was developed for sealing systems that encounter large quantities of oils and fuels. This is the O-Ring material of choice for gasket manufacturers. Even though it has been around since the 1930s, it remains a fundamental, popular choice.

Viton®/FKM/Fluoroelastomer: A synthetic rubber developed for high performance, Viton® is the O-ring of choice for any application that demands a high tolerance to chemicals and fuels. Harsh corrosive chemicals can erode or damage an O-ring after a continued interaction. FKM performs well under high temperatures, making it a good choice for combustibles like gas. Strict tests have indicated that Viton® is not suitable for any applications using steam.

Silicone: This ubiquitous synthetic rubber remains durable in most temperature extremes. Unique compounds have been added to the silicone O-Ring gum stock to make it more tear-resistant. It comes in a variety of colours and can withstand fluctuations in weather.

Neoprene®/Chloroprene: Neoprene® has been around for many decades because it is well-priced and has overall solid performance. Some of the outstanding qualities of Neoprene® is its ability to be customised for certain specifications. In its commercial uses, it is fuel and lubricant resistant, durable in all weathers and performs well in dynamic applications.

EPDM: This material is made of synthetic rubber that is resistant to long periods of exposure to weather and harsh conditions. This gives EPDM a solid rating when added to its excellent performance against fuels, oils and lubricants.

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