The Benefits of Rubber O-Rings vs Metal O-Rings

A variety of rubber O-rings near Lexington, Kentucky (KY)

The Benefits of Rubber O-Rings vs Metal O-Rings

From the depths of ocean trenches to the reaches of outer space and everywhere in between, you’ll find rubber O-rings in the engines of our cars and the faucets in our kitchen sinks. These versatile parts are used in equipment and appliances everywhere around us. Odds are that you will find that O-rings have a use in every room in your home, having a pivotal role in sealing connections and preventing leaks.

At I. B. Moore Company, we deal with many types of custom molded and elastomer parts, but in this post, we want to highlight the benefits of rubber O-rings and contrast those against their metal O-ring equivalents.

What Are O-Rings?

 Before we delve in, let’s start at the very beginning. O-rings are gaskets made usually in the shape of a circle. They are used to seal an interfacing connection between two parts or a part and the outside of a piece and are commonly used in both static and moving applications.

Comparing Rubber O-Rings vs Metal O-Rings

Given their shared purpose, both rubber and metal O-rings offer individual and specific strengths. While rubber O-rings are preferred in many situations due to their adaptability and resilience, metal O-rings carry significant advantages in certain applications.

Metal O-rings can withstand much higher temperatures compared to their rubber counterparts. They are usually employed in applications where the operating temperature is beyond what rubber can handle. Metal rings are also able to retain their shape and seal integrity even under extreme physical pressure. When the temperature, pressure, and the environment is stable, metal O-rings have a longer lifespan as they don’t degrade over time like rubber.

Remember, the choice between rubber and metal O-rings depends heavily on the specific application. What’s important is to have a deep understanding of the environmental and operational demands where the O-rings will be used. Rubber O-rings, in particular, hold several distinct advantages to metal.

Flexibility & Resilience

Rubber is naturally more flexible and resilient than most metal materials. This inherent characteristic allows rubber O-rings to accommodate varying amounts of pressure and temperature changes without losing their elasticity. This is essential for parts that go through repeated cycles of compression and relaxation.

Withstands A Large Temperature Range

While metal can withstand hot temps, high-quality rubber O-rings like the ones manufactured and distributed by I.B. Moore Company can withstand a significantly wider range of temperatures compared to their metal counterparts. They are designed to operate effectively in low temperatures and higher temps, covering many use-cases in the industrial and commercial sector.

Rubber O-Rings Are Cost-Effective

Compared to metal O-rings, rubber versions are generally more cost-effective both in terms of initial purchase price and long-term maintenance. Their resistances to wear and tear and deformation reduce the need for frequent replacements.


Rubber O-rings offer a high degree of customizability. At I.B. Moore, we provide a diverse selection of elastomeric materials that vary in hardness, colors, and resistances to better suit specific applications. This flexibility allows us to cater to a wide array of industries, including manufacturing, automotive, healthcare, and aerospace, to name a few.

Contact Us to Learn About Custom O-Rings

While metal O-rings do have their specific instances where they might be the preferred choice, for a wide range of applications, rubber O-rings are excellent because of their versatility, resilience, and cost-efficiency.

At I.B. Moore Company, we excel in creating high-quality rubber and elastomer parts, including custom O-rings tailored to fit the unique needs of our clients. Our depth of experience, technical expertise, and commitment to customer satisfaction make us the supplier, distributor, and manufacturer of choice for businesses across the United States.

Request a quote online using our easy 3-step process or give us a call at (859) 255-5501 to discuss how I. B. Moore Company can assist you in finding the perfect O-ring solution for your specific application needs.

Located in Lexington, Kentucky, we proudly serve domestic and international companies, including cities as near as Chicago, IL, Nashville, TN, Indianapolis, IN, and Columbus, OH.