Sections

Latest News

News 11 Nov 2026

Thermal Management and Sealing in EV Battery Packs - Silicone Foam

The electric vehicle (EV) market is accelerating at a rapid pace as governments around the world introduce strict regulations and...

News 12 Oct 2026

Why HT800 Strips Are a Great Choice for Electrical Enclosure Seals

Exterior electrical enclosures face a constant battle against the elements, requiring robust sealing solutions to maintain their mandatory IP ratings....

Silicone Rubber Strips, Sheets and Gaskets – Pros and Cons

News

November 16, 2023

With its unique properties and versatility, silicone rubber has revolutionised numerous industries. From automotive and aerospace to healthcare and electronics, silicone rubber has become a go-to choice for manufacturers seeking a high-performance material. With its exceptional durability, heat resistance, and flexibility, silicone rubber strips, sheet material and gaskets offer a...

With its unique properties and versatility, silicone rubber has revolutionised numerous industries. From automotive and aerospace to healthcare and electronics, silicone rubber has become a go-to choice for manufacturers seeking a high-performance material. With its exceptional durability, heat resistance, and flexibility, silicone rubber strips, sheet material and gaskets offer a wide range of benefits that make it suitable for diverse applications.

silicone rubber strips

Silicone rubber is an elastomer, formed through a curing process. It starts as a gel-like material consisting of silicone polymers, carbon, hydrogen and oxygen, before it is exposed to a curing process to convert into a solid, rubber-like material. There are different curing systems used, such as platinum-based curing, condensation curing and peroxide curing. The specific curing process used depends on the desired properties of the silicone rubber and the applications it will be used for. 

Whilst there are many advantages to selecting silicone rubber, it does have certain limitations for some uses. If you are looking for the right material to choose for a certain application, read on to explore the key characteristics of silicone rubber and its pros and cons for different industrial applications.

Conversion into silicone rubber sheet, silicone rubber strips and gaskets

One of the key advantages of this elastomer is that it can be converted into many different products. In addition to rubber sheet material, silicone sheeting can be cut into silicone rubber strips and gaskets for use in a wide range of applications. In addition to cutting, silicone rubbers can also be moulded, extruded and fabricated to manufacture a range of 3D products.

Excellent sealing capabilities

Silicone is an excellent sealing material as it is extremely flexible, with high tensile strength. Whereas rigid gasket materials can break under repeated stress, silicone rubber maintains excellent elasticity, maintaining its desired shape and continuing to function optimally.

Silicone rubber is not only a highly flexible material, it maintains this characteristic when exposed to a range of different conditions, making it an ideal sealing material. One of its key benefits is that it has very good thermal stability, withstanding temperatures as low as -60℃ and as high as 230℃.

As well as excellent temperature resistance, silicone also performs well under exposure to ozone and UV, and has a high level of resistance to water, along with chemicals and oils. When you consider the above characteristics, it is understandable why it is commonly chosen for use in automotive, aerospace and outdoor applications, where resistance to varying temperatures, environmental exposure and various liquids and chemicals is vital.

FDA and WRAS approved

Silicone rubber is an inert material and can undergo a range of different sterilisation processes, making it an ideal material for medical, food and engineering purposes where sterile conditions are crucial. In addition to being FDA approved for use with food, silicone is also WRAS approved for use with drinking water.

The disadvantages of silicone rubber materials

Whilst silicone is highly versatile due to its many advantages, it does have some limitations. Firstly, whilst highly flexible, some grades of silicone exhibit poor tear strength compared to other elastomers. For applications in abrasive environments, with high levels of mechanical stress, silicone may not be the best suited gasket or sealing material. However, it’s important to consider that advancements in silicone technology have led to the development of grades with higher tear resistance.

Another potential con of choosing silicone is that it can be quite costly compared with natural rubber and other elastomers. Whilst choosing silicone rubber may be costly in large quantities, it’s important to weigh up these costs against the many advantages that the material brings.

Silicone Manufacturers

If you have questions about silicone rubber strips or sheet material, or are seeking advice on material selection, contact our experienced team today. We are here to provide advice on the best materials for each application, along with the best suited manufacturing methods.

Keep up to date with the
latest CB Frost & Co news

01
03
Rolling Stock Networking: Connect with CB Frost at RSN 2026
Rolling Stock Networking: Connect with CB Frost at RSN 2026

At CB Frost & Co, we don’t believe in waiting around when a great opportunity knocks. That is exactly why we signed on the dotted line to secure our exhibition stand for Rolling Stock Networking (RSN) 2026 soon after last year’s event. This year’s RSN event takes place at Derby Arena on Thursday, 2nd July. […]

Make UK Defence: The Pros & Cons of Working within the Defence Industry
Make UK Defence: The Pros & Cons of Working within the Defence Industry

Kicking off a busy summer of industry shows and exhibitions, CB Frost presented at the latest Make UK Defence Networking event. For over 30 years, CB Frost has been an approved supplier to the MoD, manufacturing and distributing a wide range of high performance sponge and rubber components, including gaskets, rubber gaiters, o-rings, bespoke turret […]

CB Frost Enter the Electrical Vehicles Market
CB Frost Enter the Electrical Vehicles Market

At CB Frost, in keeping with our core values, as well as our commitment to moving with the times and embracing new technologies, we also maintain a dedication to respecting the environment at all times and working to give back to society. As a result, to remain as a market leader in our industry, we […]

Rail SD Foam: Preventing Corrosion in Rail Air Ducts and Pipes
Rail SD Foam: Preventing Corrosion in Rail Air Ducts and Pipes

HVAC systems play an important role in ensuring safe and comfortable passenger travel on trains. The efficiency of these systems can hinge on the integrity of seemingly minor components such as air ducts and pipes—corrosion within these systems can lead to a wide range of issues, including reduced airflow, temperature inconsistencies and other system inefficiencies. […]

High Performance Silicone Foam for Rail Applications
High Performance Silicone Foam for Rail Applications

Partnered with leading cellular silicone manufacturers, Rogers Corporation and Armacell, and utilising decades of experience in converting rubber and plastic materials, CB Frost has earned a reputation as a leading supplier of silicone foam and rubber for the Rail and Mass Transit Industry, providing materials for a wide range of applications, from door seals to […]

Which Rubber Gasket Do You Need? Solid or Sponge?
Which Rubber Gasket Do You Need? Solid or Sponge?

When sourcing sealing solutions for your next engineering, manufacturing, or construction project, selecting the right material is critical. Make the wrong choice and you risk leaks, environmental damage, or system failure. For buyers and procurement managers, one of the most common dilemmas when specifying a seal is material selection, and deciding between a solid rubber […]

Success at the Rail Industry Technology Roadshow
Success at the Rail Industry Technology Roadshow

March has been a busy month for CB Frost, with members of our sales team representing us at the Rail Industry Technology Roadshow. The two week long exhibition, supported by Rail Forum and facilitated by Brewco Marketing Group, visited a number of prominent rail industry sites throughout England. As a roadshow, even the exhibition space, […]

The Power of Peel & Stick: Simplifying Industrial Assembly with Adhesive Backed Silicone Sponge Gaskets
The Power of Peel & Stick: Simplifying Industrial Assembly with Adhesive Backed Silicone Sponge Gaskets

In high-volume manufacturing and assembly environments, the old cliche that time is money is completely true. Every minute saved on the production line translates directly into increased profitability and efficiency. While silicone sponge gaskets are already recognised for their superior sealing, temperature resistance, and durability, adding an adhesive backing transforms them from high-performance components into […]

More Than Just Silicone: Your Source for Diverse High-Performance Materials
More Than Just Silicone: Your Source for Diverse High-Performance Materials

Whilst silicone rubber is undeniably an extremely popular and versatile material for a wide range of applications, at CB frost & Co, our expertise and product range extends far beyond Silicone. As specialists in rubber and plastics manufacturing, we pride ourselves in supplying and converting a vast array of high-performance materials, tailored to meet the […]