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News 4 Aug 2026

Die-Cut vs. Waterjet Cut Silicone Gaskets

What’s the best choice for your production run? Selecting the right material is critical for manufacturing high-performance seals, but how...

News 23 Jun 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...

Quality Without Compromise – High Speed Gasket Cutting

high speed gasket cutting

When CB Frost was formed in 1921, an ethos of ‘quality without compromise’ was established. 100 years later, quality without compromise remains our mission, but the world around us has changed immeasurably. Technology has seen huge advancements decade on decade and the pace of the world has increased massively. As a result, our customer’s requirements have changed considerably and so has the speed at which they expect turnaround to be.

Needless to say, whilst customers expect the delivery of components to be fast, expectations for the precision and overall quality are also high. To maintain our reputation for quality without compromise has meant continually investing in new machinery and seeking new ways to improve our manufacturing processes.

Our High Speed Gasket Cutting Machine

high speed gasket cutting machine

Before moving to our new premises in 2020, we invested in a new high-speed cutting and kiss-cutting machine to help increase our efficiency in manufacturing a wide range of products, including gaskets, seals, washers, tapes, all of which can be backed with adhesives when required.

Our high speed gasket cutting machine operates at extremely high speeds, die cutting or kiss cutting at up to 100 strokes a minute. Whilst speeding up processes, the quality engineering of the machine ensures an extremely high level of precision, allowing for all gaskets to be cut with a clean and accurate finish, passing our stringent quality control protocols. 

As a result of increasing production speeds and maintaining precision, we can ensure that gasket runs of all sizes can be packaged and sent to customers immediately, without the need for further finishing processes.

Kiss cutting gaskets

In addition to die cutting, we can also kiss cut gaskets, a process in which the gasket shape is cut into material, but the scrap is kept attached, allowing for gaskets to be supplied on rolls and simply be removed from the roll as needed. Adhesive backed gaskets are commonly kiss cut, allowing them to be simply peeled away from the scrap material, leaving a clean, precise finished component for immediate use. 

Your Gasket Requirements

Whether you are in need of prototypes, a short run, or large volume gasket production, we can deliver the components you require with fast lead times, whilst maintaining quality and precision.

To discuss your gasket requirements, or for help in identifying the best suited materials for your application, call our experienced sales team today on +44 (0) 121 773 8494 today and we will be glad to assist you.

CB Frost Celebrates 100 Years in Business

100 Years

In March 2021, we will celebrate our 100 years anniversary. From small beginnings in 1921, to our relocation and expansion last year, we are extremely proud of our achievements over the last century. 

Whilst so much has changed since 1921, we have always strived to stick to the original CB Frost ethos of ‘quality without compromise’. Formed in Birmingham, the city of a thousand trades, our history has been very much interwoven with the birth and development of the commercial plastics and rubber industry itself. 

CB Frost

Originally a family owned business, in the early years, CB Frost were able to stay at the forefront of the fast developing market, developing new rubber and plastic products to grow the company alongside the industry as a whole. Whilst we are no longer family owned, our values have remained the same and we have always strived to stay ahead of the curve to become a leading UK rubber and plastics manufacturer, supplying an ever growing range of high quality products to customers around the world, in a number of sectors, including:

  • Rail
  • Construction
  • Solar
  • Agriculture
  • Lighting
  • Military
  • Automotive
  • HVAC
  • Enclosures

CB Frost Matrix Point

In the last 5 years, CB Frost has been subject to several major changes  that will have a significant impact on our next 100 years as a company:

  • In 2017, we underwent a seven-figure management buyout, led by Paul Kennedy and Mark Jones, existing technical and sales directors respectively. In our commitment to future growth and expansion, this buyout allowed us to focus on expanding our business into new sectors, as well as further investing in our plant and machinery.
  • In 2019, we invested in a new high speed cutting machine to improve our efficiency and output for a wide range of products.
  • In 2020, despite the challenges of the coronavirus pandemic, we completed our expansion and relocation to a new, larger facility at Matrix Point, Birmingham. This move allowed us to commission our new high speed cutting machine and considerably increase our productivity.

As well as working to constantly improve our processes and invest in new technologies, we are proud that as a company, we also endeavour to develop our staff and many members of our team have been with us for a number of years. 

On our anniversary, our Business Development Manager, Daniel Brock said:

“My career with CB Frost started a decade ago now and it really is a pleasure to talk about how far the company has come not only in the past 10 years, but in its entirety. From humble beginnings to a brand-new facility just on the outskirts of Birmingham City centre, this speaks volumes of the company’s history and indeed success. 

“Having also invested over £250k in the last 12 months, this demonstrates that senior management are not resting on their laurels and are very much looking forward to the next 100 years. It is an exciting time to be part of the CB Frost family and I am looking forward to organising an open day for our customers to showcase exactly how far CB Frost has come.” 

Edward Booth, CB Frost Sales/Quality Manager, another longstanding member of the CB frost team, added:

“Having been with the company now for 12 years, I have seen the business grow from strength to strength, accumulating in moving to new state of the art premises which truly reflect the professional outfit CB Frost are. 

“The investment from senior management is a testament to their “continual improvement” programme, covering the whole company, from sales, production, quality, through to health & safety. 

“In its history the company was once family owned and senior management continue that ethos to this day.”

We look forward to the next century of providing ‘quality without compromise’ for all materials, products and services. For more information about our manufacturing capabilities, or to discuss your own project requirements, please call us today on +44 (0)121 773 8494 or contact us here and we will be in touch as soon as possible.

2020 at CB Frost – New Premises, Unforeseen Challenges and a New Website

There can be no disagreement that the last 12 months has been extremely challenging for industry in the UK and across the world. 

We started 2020 full steam ahead working on the move from our old headquarters in Digbeth to our new premises at Matrix Point, Birmingham. Having initially announced our relocation and expansion early in 2019, we initially hit a few stumbling blocks that slowed down the work at our new premises, but we were able to complete our move and commission our new high speed cutting press in the first quarter of 2020.

CB Frost High Speed Cutting Machine

No sooner had we completed our relocation than we were faced by the challenges of COVID-19 and the first national lockdown. In order to continue supplying our clients in essential industries, we began operating with a skeleton staff, having introduced strict social distancing and hygiene standards in order to adhere to government guidelines. We are very proud to have played a small part in supporting key workers during this time, particularly in supplying self-adhesive polyethylene free-of-charge to a company supplying protective visors for frontline NHS workers

The New CB Frost Website

new website

Whilst working hard to keep our team safe and to continue to meet the demands of our clients, in the background, we have also been working on a new look CB Frost website to provide an improved users experience for our existing and potential customers. We are happy to announce that our new and improved website is live, featuring a clean new look, and a clear, simple navigation to help site visitors find the information they need with ease.

Be sure to have a look around for yourself!

To find out more about our products and services, please call our friendly team on 0121 773 8494.

Sponge Rubber – Advantages and Applications

At CB Frost, we offer a large selection of sponge rubber materials to suit our clients’ specific requirements, including a range of specialist products for the rail industry.

Sponge rubber materials are highly versatile and are used across a very wide variety of industries. Generally, a closed cell material, sponge is ideally suited for sealing applications, preventing the ingress of air, water, oils, dust and other particles, depending on the sponge grade used. Inside a sponge rubber is a series of enclosed capsules that are not connected, providing the appearance of bubbles in the material. It is these cell walls that prevent outside bodies from passing through the sponge.

There are many benefits of sponge materials, including:

  • Excellent sealing abilities
  • Excellent shock absorption abilities
  • Controlled compression and recovery
  • Available in different densities, from high to low firmness
  • It can be cut into sheet material, gaskets, washers and tape/strip
  • It can be laminated with adhesive

EPDM sponge and Neoprene sponge are two of the most commonly requested materials by our customers. Both materials feature a closed cell structure and similar advantageous properties.

EPDM Sponge

EPDM sponge is commonly used as a sealing material and is well suited for use in outdoor and automotive applications as a result of its excellent resistance to ozone, UV, extreme temperatures (-40℃ to 110℃), and resistance to general weathering and abrasion.

EPDM sponge rubber is manufactured as blocks and converted/split into sheets or sheets are joined to form rolls in a wide variety of thicknesses. Using our in-house capabilities, we can convert sponge into strip/tape, gaskets, washers, plain and adhesive backed or supply extruded sponge profiles to suit customer needs.

More information on EPDM sponge.

Neoprene Sponge

Neoprene sponge is an excellent sealing material, with a high level of resistance to abrasion. As a chemically inert material, with good resistance to oils, and the ability to withstand temperatures of between -40℃ to 110℃, Neoprene is ideally suited for industrial applications. Like EPDM, Neoprene sponge rubber is a closed cell material with good UV resistance and recovery.

Like EPDM, Neoprene sponge is manufactured as blocks, these are then split into sheets or joined to form rolls of material in a variety of thicknesses, ranging between 1mm and 40mm. CB Frost convert sponge sheets/sheeting into gaskets, washers, tape/strip with or without an adhesive backing on one or both faces. We also supply neoprene sponge as extruded profiles to customers requirements.

More information on Neoprene sponge.

Sponge Rubber Tape and Gaskets

From our manufacturing facility in Birmingham, where we keep large quantities of sponge rubber material in stock, we can convert and supply sponge tape and gaskets in small and large production runs.

For small to medium quantities of tape or gasket products, we use our overhead presses to cut stock material down into the specified shapes. For high volumes, we use our HSC (high speed cutting machine), which operates at speeds of up to 100 strokes per minute whilst maintaining pinpoint precision and helping us to ensure excellent lead times.

To discuss your sponge rubber requirements, please call us on +44 (0) 121 773 8494. Our experienced team will happily guide you through the ideal materials and manufacturing processes to suit your requirements.

Our Guide to Rubber Extrusions

 

 

 

In our last blog, we focused on gaskets, their uses, and the manufacturing processes used to produce gaskets at CB Frost. In addition to creating flat gaskets and seals, cut from roll stock material using our highly efficient cutting presses, we also use a range of other processes to create simple and complex products, for example, rubber extrusions. We commonly use the extrusion process to create 3D products for an extensive variety of uses. 

The Rubber Extrusion Process

rubber extrusions

At CB Frost, we supply extruded profiles in a range of solid and sponge materials, such as EPDM, Neoprene, Nitrile, Silicone and Viton, each of which have unique qualities. We supply extruded profiles into various sectors, using our expertise to help specify the ideal material to suit each process, based on the strengths and weaknesses of each material to conditions that an extruded part will be subject to.

The extrusion process creates objects with a fixed cross-sectional profile. To achieve this, a raw rubber material (or combination of materials) is heated and then pushed through a die of the required cross-section, under high pressure. Rubber extrusion can create simple or highly complex profiles – it all depends on the complexity of the shaped die.

Dies are made from materials such as stainless steel, ensuring that they keep their shape and ensure accurate production for repeat production rubs. Stainless steel does not rust and is able to withstand the pressure it is subjected to during extrusion, making it an ideal die material.

Depending on customer requirements, we can supply extruded profiles in coil form, cut them to length to suit specific applications, or even fabricate them in order to produce gaskets or seals. 

Fabricated Rubber Extrusions

To create fabricated or bonded extrusions for use as seals, we can use hot splicing or vulcanising processes, depending on the quantity of rubber extrusions required. For low volume gasket production, vulcanised joining is a cost-effective and reliable process, joining profiles together to create a range of shapes, for example, tubing, square or rectangular profiles, or O-rings. The hot splicing process uses heat to bond profiles together effectively.

Common Applications

Extruded products can be made to suit many different applications in all sectors. Common applications include:

  • Door and window seals
  • Tubing
  • Connectors
  • Vibration reducing gaskets
  • Window seals for rail and mass transit
  • Concrete pipe and manhole gaskets
  • Coupling gaskets

To discuss the benefits of extrusion, talk about your extrusion needs, or to ask for advice on extrusion materials, please call us on 0121 773 8494 and our experienced team will be glad to help you.

Sponge And Rubber Gaskets

CB Frost are continually investing in modern production processes to offer a faster turn around and competitive prices.

Our cutting facility allows us to produce flat pressed parts (gaskets) and cater for quantities ranging from custom one offs to small, medium and large volumes. Our machinery allows us to produce small intricate gaskets, to larger, more complex shapes of up to 2mtrs long.

GRADES OF GASKET MATERIAL IN STOCK

Rubber

Neoprene, Commercial, Nitrile, EPDM, Commercial Insertion (1ply), Commercial Ribbed Matting, FDA Silicone, LSLT (Low Smoke Low Toxicity) EPDM, MF775 Silicone, HT200, Viton, Hypalon and Cork

Sponge

Neoprene, EPDM, Natural, PVC, General Purpose Silicone, Semi-Closed Cell EPDM, K-Cell Super Soft Nitrile, Rail SD Insulation, CBF Sil V0, HT800, BF1000, BF2000, Poron® EVExtend, Poron® 4701 Range, Poron® 4790-92 Extra Slow Rebound, Poron® XRD and Griswold Industrial Sponge

Foam

Polyethylene LD24 & LD45, Open Cell Polyurethane and Reticulated Foam

PRODUCT SPECIFICATION

Our rubber, sponge and foam materials can be supplied in various densities or hardness to assist in solving problems. We hold a good mixture of general purpose and high-performance materials to suit your every need.

ADHESIVES

Gaskets can be supplied plain or pre-laminated with pressure sensitive adhesives; we have an extensive range of adhesives to suit numerous applications, our sales team are on hand to help you with your requirements.

TECHNICAL SUPPORT

With over 150 years live service experience at CB Frost you can trust us to deliver. Our team have the experience and technical knowledge to help design and develop the correct solution for your application.

Our aim is to work with you and form long lasting mutually beneficial relationships. For more information, please call our experienced sales team on +44 (0)121 773 8494.

Bespoke Products

OUR INDUSTRY LEADING MANUFACTURING CAPABILITIES

As industry leaders in the rubber and plastics manufacturing industry, not only do we provide the highest quality products and services, but we also provide an extremely diverse catalogue of products. From our manufacturing base in Birmingham, we have the capabilities to deliver products for applications in all major industries.

Let’s talk through some of the most important benefits of working with CB Frost and the factors that make us a rubber and plastics industry leader.

OUR STOCK OF MATERIALS

At CB Frost, we boast an extremely impressive range of rubber and plastic materials to suit practically any application. We will work with our customers to ensure that we supply the materials with the characteristics that will best suit their unique requirements, providing the most durable and most effective finished product.


We pride ourselves in always keeping roll stock of our full catalogue of materials available for order and conversion, including:

  • Neoprene
  • EPDM
  • Silicone
  • Nitrile
  • Polyurethane
  • Polyethylene
  • PVC
  • Cork

We also supply a wide range of specialist materials, including Armaflex® rail materials, LSLT fire safe materials, Class O materials, Non-Halogen sponge, and Rogers Poron® Urethane.

OUR MANUFACTURING CAPABILITIES

Whether you are looking for standard or completely bespoke products, from our Birmingham manufacturing facility, we have the inhouse capabilities for the production of a long list of products, including:

Sheeting –  We supply sponge, foam and rubber sheeting in various grades, thicknesses and colour

Gaskets – We manufacture gaskets in quantities ranging from custom one offs to very large volumes

Tape – We strip roll stock into strips and adhesive backed tape to suit all requirements

Washers – We produce flat pressed die cut washers as individually cut parts or kiss-cut on rolls with adhesive backing, for easy peeling

Extrusions – We offer custom made extrusions in a wide range of sponge and solid form materials

Fabrications – We can fabricate a wide range of gaskets, including vulcanised joined gaskets and hot spliced joined extruded gaskets

Mouldings – We offer a wide range of moulded components and can reverse engineer exisiting parts

Edge Protection Seals – We specialise in custom made extruded metal reinforced silicone profiles

Our extensive range of stock materials and inhouse manufacturing capabilities helps us to ensure rigorous quality control processes and fast lead times, ensuring that the finished product fits your requirements, meets or exceeds your expectations, and arrives with you in good time.

LEADING CUSTOMER SERVICE

As leaders in our field, we are committed to providing the highest level of customer service. We will work with you to find the materials that will best fit your unique requirements, ensuring high performance, durable and long-lasting finished products. As well as providing assistance in material choice, we will also help you to reduce overall costs by reducing material waste wherever possible.

Whether you are an SME, or a global organisation, you will be in safe hands with CB Frost. To discuss your needs, or to talk through our manufacturing capabilities, please call our experienced team on +44 (0)121 773 8494

What is a Gasket?

 

 

 

At CB Frost, we have the capabilities to produce gaskets of all shapes and sizes, simple and complex, as custom one-offs or large production runs, and in an extensive range of materials to suit applications across all industrial sectors. The big question is, what is a gasket?

Gaskets are found in so many different products, and in all industries. For example, gaskets are found in the automotive industry, the rail industry, aerospace, construction, food processing, pharmaceuticals, water, oil, gas, petrochemicals and many more sectors.

People can mean many different things when they talk about gaskets, but simply put, a gasket can be described as a component that sits between two surfaces. Gaskets can be used for a wide variety of different uses, including vibration reduction, noise and sound reduction, hygiene, packaging, and most commonly, sealing.

Gasket or Seal?

You may well have the impression that gaskets and seals are the same thing as they perform the same function, however, there are several key differences. As stated above, gaskets create a joint between two static surfaces, and are often compressed in order to provide a sealing function to prevent leakage between these two parts.

A seal is usually a dynamic part that prevents leakage between parts that often show sliding or relative motion, and prevents foreign particles such as dust or moisture from entering a joint. 

Whilst a seal is not a gasket, a gasket is categorised as one of the most important types of seal. Other seals can include mechanical seals, shaft seals, valve seals, liquid seals, o-ring seals, and rotary seals.

 

What are Gaskets Manufactured From

Gaskets can be manufactured from many different materials, depending on the characteristics needed for their intended application. Most frequently, gaskets are made from flexible materials that are highly compressible. At CB Frost, we manufacture gaskets from our extensive range of rubber, sponge, foam and cork materials, which are available in different grades and specifications to suit the requirements of the gasket in question. 

Gaskets may be subjected to all kinds of environments for which the gasket material will be required to resist. For example, in order to function effectively, gaskets may need to be resistant to acid, alkaline, extreme low and high temperatures, UV, ozone, pressure, and/or different weather conditions. 

Our specialist team are on hand to discuss your gasket needs and help you choose the right material for your gasket application.

Gasket Manufacturing

At our manufacturing base in Birmingham, we have invested in the technology to allow us to produce gaskets in all quantities. For high volume requirements, our high speed cutting and kiss cutting press allows us to efficiently manufacture gaskets at considerable speed, whilst maintaining complete precision. We can also provide gaskets with adhesive backing if necessary.

In addition to cutting gaskets, we also have the capabilities to cut sheeting, tape and washers, as well as extruding, moulding and fabrication.

Call our team today on 0121 773 8494 to talk through your requirements with our experienced sales team.

Gasket Manufacturing

 

 

 

WHAT IS A GASKET?

At CB Frost, we have the capabilities to produce gaskets of all shapes and sizes, simple and complex, as custom one-offs or large production runs, and in an extensive range of materials to suit applications across all industrial sectors. The big question is, what is a gasket?

Gaskets are found in so many different products, and in all industries. For example, gaskets are found in the automotive industry, the rail industry, aerospace, construction, food processing, pharmaceuticals, water, oil, gas, petrochemicals and many more sectors.

People can mean many different things when they talk about gaskets, but simply put, a gasket can be described as a component that sits between two surfaces. Gaskets can be used for a wide variety of different uses, including vibration reduction, noise and sound reduction, hygiene, packaging, and most commonly, sealing.

GASKET OR SEAL?

You may well have the impression that gaskets and seals are the same thing as they perform the same function, however, there are several key differences. As stated above, gaskets create a joint between two static surfaces, and are often compressed in order to provide a sealing function to prevent leakage between these two parts.

A seal is usually a dynamic part that prevents leakage between parts that often show sliding or relative motion, and prevents foreign particles such as dust or moisture from entering a joint. 

Whilst a seal is not a gasket, a gasket is categorised as one of the most important types of seal. Other seals can include mechanical seals, shaft seals, valve seals, liquid seals, o-ring seals, and rotary seals.

WHAT ARE GASKETS MANUFACTURED FROM

Gaskets can be manufactured from many different materials, depending on the characteristics needed for their intended application. Most frequently, gaskets are made from flexible materials that are highly compressible. At CB Frost, we manufacture gaskets from our extensive range of rubber, sponge, foam and cork materials, which are available in different grades and specifications to suit the requirements of the gasket in question. 

Gaskets may be subjected to all kinds of environments for which the gasket material will be required to resist. For example, in order to function effectively, gaskets may need to be resistant to acid, alkaline, extreme low and high temperatures, UV, ozone, pressure, and/or different weather conditions. 

Our specialist team are on hand to discuss your gasket needs and help you choose the right material for your gasket application.

GASKET MANUFACTURING

At our manufacturing base in Birmingham, we have invested in the technology to allow us to produce gaskets in all quantities. For high volume requirements, our high speed cutting and kiss cutting press allows us to efficiently manufacture gaskets at considerable speed, whilst maintaining complete precision. We can also provide gaskets with adhesive backing if necessary.

In addition to cutting gaskets, we also have the capabilities to cut sheeting, tape and washers, as well as extruding, moulding and fabrication.

Call our team today on 0121 773 8494 to talk through your requirements with our experienced sales team.

Our Industry Leading Manufacturing Capabilities

As industry leaders in the rubber and plastics manufacturing industry, not only do we provide the highest quality products and services, but we also provide an extremely diverse catalogue of products. From our manufacturing base in Birmingham, we have the capabilities to deliver products for applications in all major industries.

Let’s talk through some of the most important benefits of working with CB Frost and the factors that make us a rubber and plastics industry leader.

Our stock of materials

At CB Frost, we boast an extremely impressive range of rubber and plastic materials to suit practically any application. We will work with our customers to ensure that we supply the materials with the characteristics that will best suit their unique requirements, providing the most durable and most effective finished product.

We pride ourselves in always keeping roll stock of our full catalogue of materials available for order and conversion, including:

  • Neoprene
  • EPDM
  • Silicone
  • Nitrile
  • Polyurethane
  • Polyethylene
  • PVC
  • Cork

We also supply a wide range of specialist materials, including Armaflex® rail materials, LSLT fire safe materials, Class O materials, Non-Halogen sponge, and Rogers Poron® Urethane.

Our manufacturing capabilities

Whether you are looking for standard or completely bespoke products, from our Birmingham manufacturing facility, we have the inhouse capabilities for the production of a long list of products, including:

  • Sheeting – We supply sponge, foam and rubber sheeting in various grades, thicknesses and colour
  • Gaskets – We manufacture gaskets in quantities ranging from custom one offs to very large volumes
  • Tape – We strip roll stock into strips and adhesive backed tape to suit all requirements
  • Washers – We produce flat pressed die cut washers as individually cut parts or kiss-cut on rolls with adhesive backing, for easy peeling
  • Extrusions – We offer custom made extrusions in a wide range of sponge and solid form materials
  • Fabrications – We can fabricate a wide range of gaskets, including vulcanised joined gaskets and hot spliced joined extruded gaskets
  • Mouldings – We offer a wide range of moulded components and can reverse engineer exisiting parts
  • Edge Protection Seals – We specialise in custom made extruded metal reinforced silicone profiles

Our extensive range of stock materials and inhouse manufacturing capabilities helps us to ensure rigorous quality control processes and fast lead times, ensuring that the finished product fits your requirements, meets or exceeds your expectations, and arrives with you in good time.

Leading customer service

As leaders in our field, we are committed to providing the highest level of customer service. We will work with you to find the materials that will best fit your unique requirements, ensuring high performance, durable and long-lasting finished products. As well as providing assistance in material choice, we will also help you to reduce overall costs by reducing material waste wherever possible.

Whether you are an SME, or a global organisation, you will be in safe hands with CB Frost. To discuss your needs, or to talk through our manufacturing capabilities, please call our experienced team on +44 (0)121 773 8494 or contact us here.