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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...

Rubber Moulding

Our significant expertise in rubber moulding has culminated in long standing relationships with customers and we provide custom moulded rubber components in most rubber materials either to a drawing or sample (reverse engineering).

We supply parts in commercial grade materials such as Neoprene, EPDM, Natural, Nitrile and Silicone. But also offer moulded components in flame retardant, chemical resistant, military grade, WRAS, FDA, British Standard – Natural rubber to BS1154, Nitriles to BS2751, Neoprene to BS2752 and other major standards such as EN45545-2, BS6853 and TFL (transport for London) all specifically designed for the rail industry, please visit the rail sector section of our website.

Tooling (mould) is manufactured to suit the application, from a single impression for prototype/small batch production, to multicavity tools designed for long running schedules of rubber mouldings.

If you are looking to replicate an existing part, CB Frost can work with you to reverse engineer rubber moulds, offering like-for-like or in alternative materials for rubber moulding. We understand material selection can be critical for the working applications and our technical support team will be able to help.

In some instances, it is worth considering overseas production, this could be due to cost or quantity involved. CB Frost have a reliable and trusted partnerships with several suppliers built up over a 15-year period and we manage the process from start to finish.

Examples of the range of moulded rubber components manufactured are as follows:

Moulded Rubber Cleat Seals

Moulded General Rubber Seals

Moulded Rubber Drain Valve Seals

Moulded Rubber Gaskets

Moulded Rubber Pipe Seals

Moulded Rubber Washer Seals

Injection moulding is a commonly used process as it is ideally suited to producing small and large parts, as well as very intricate rubber mouldings. Some of the biggest benefits of this process include:

Compression Moulding:

How does compression Moulding work?

At CB Frost, we offer custom moulded rubber components in a comprehensive range of materials, such as Neoprene, Silicone, Nitrile, EPDM and Viton, which can be tailored to our customer’s needs. We offer rubbers which are flame retardant, chemical resistant, military grade, WRAS, FDA, and to British standard – e.g. Natural rubber to BS1154, Neoprene to BS2752 and Nitrile to BS2751.

We also offer our custom moulded components in Rail specific fire-retardant grades that are compliant to rail industry standards EN45545-2, BS6853 and LUL (London Underground) safety standards.

At CB Frost we have vast experience in creating cutting a wide range of materials to a set specification for a range of industries. Our team is able to advise customers as to the best type of material to utilise for a particular project, and we aim to meet fast lead times at all times. For further information, please contact our team on +44 (0)121 773 8494.