For all your sealing

Pumps & Valves

High-Quality Gasket Manufacturers & Suppliers


With 50 years experience supplying gaskets and seals to our wide range of customers, we are renowned for stocking a huge selection of materials including rubber, PTFE, Cork, Asbestos Free Fibe and metallics.

PTFE Gaskets


PTFE Envelope Gasket

Our range of machinery including oscillating knife CAD/CAM cutting tables enable us to produce parts, quickly and efficiently.


Our moulding presses range from 16″ platens to over a metre enabling us to produce both rubber, and rubber to metal mouldings from our extensive range of elastomeric compounds.

Rubber Moulding


Moulded Butterfly Valve Seal

Working closely with our rubber compounders, we are able to advise and develop application specific polymers in our complete range of colours and hardnesses. 


Whether your requirement is for a simple hand fabricated sleeve, or a more complex, custom designed chute liner; our experienced fabrication department has the experience and knowledge to meet your needs.

Welded Polyurethane


Pu Welded Double Flanged Connector

In addition to rubber, we also fabricate parts in our range of textiles, welded polyurethane, plus foam and sponge.


You may simply need a rubber or sponge strip to stop water ingress or a metallic ring for high temperature applications. Thankfully, with our experience, we are able to advise and supply practically every type of seal.

Silicone Sponge Strip

Other Seals

Silicone Sponge Strip

Our extensive range doesn’t just stop at soft cut materials. We also supply plastics, felt, lead, polyurethane, coated textiles and gland packing.

Who we are......

Established in 1972, Munsch & Co has 50 years’ experience in the Industrial Rubber and Sealing Sector.

Recognised for stocking a massive range of sealing materials in thicknesses from 0.5mm to 50mm, and being able to supply quickly, in many formats means we are usually the “One Stop Shop” for your sealing needs.

Polymer Trade Manufacturing was formed in 2015 and specialises in providing engineered sealing solutions to industry.

We are one of the UK’s leading gasket manufacturers and offer a variety of high quality sealing materials including, PTFE, Gylon™, Sigma™ and metal gaskets, we work with both our suppliers and our customers to offer a reliable, cost effective and professional solution to keep your business running.

In 2022 a management buyout took place by Clive and Paul. Following on from this, it was decided to form a new company, Polymer Trade Munsch Limited, of which both Polymer Trade Manufacturing and W.C. Munsch and Co. would become subsidiaries.

To avoid duplication and to streamline the businesses, from 2023 the companies would trade under the Polymer Trade Manufacturing (PTM) name.

What we use......

Some of our most popular materials include...


Rubber Full Faced Gasket


We convert one of the widest ranges of rubber in the UK. Our polymers cover practically all grades and are available from 0.5mm – 50mm thick. We carry various BS and also food compliant (FDA and EC1935:2004) grades.

PTFE Gaskets


Gore Expanded PTFE Gasket


Whether your requirement is for expanded, Virgin, or filled grades of P.T.F.E. you can be assured that our offering includes options from the worlds leading manufacturers including W.L. Gore.


Colour Coded Plastic Shims


Our range of colour coded plastic shimstock is great for ease of identification. We carry a complete range of industrial plastics too including Nylon, Polycarbonate, PEEK, Acrylic, Acetal and polypropylene.

Gylon Range


Gylon™ Full Faced Gaskets


Garlock’s Gylon™ range is infamous throughout the world, and as an authorised supplier, our offering is vast. Whether it be Blue Gylon™ 3504, brick red Gylon™ 3501 or expanded Gylon™ 3540, we stock and convert it all.

Novus 30

Non-Asbestos Fibre

Novus 30 Full Faced Gasket

Non-Asbestos Fibre (CNAF)

Alongside our own brand Greeneseal™ we also supply CNAF products from the worlds leading manufacturers including Flexitallic, Garlock, Klinger and Reinz. CNAF can be supplied in sheets, strips or gaskets.

Cork Gaskets

Rubber Bonded Cork

Manifold Style Gasket

Rubber Bonded Cork

Most often used for gaskets in controlled swell environments, like sumps, our rubber bonded cork is combined with either Neoprene or Nitrile to enhance its properties and chemical resistance.

Silicone Compound

Rubber Compound

Silicone Coloured Compound

Rubber Compound

We use rubber compounds from low cost SBR for general applications, to Perfluoroelastomers for aggressive duties. We can also help if you have a specific type, colour or hardness requirement.

Copper Washer

Metallic & Semi-Metallic

Copper Washers

Metallic and Semi-Metallic

Our metal and semi-metallic range includes, steel, copper, and brass. We even manufacture eyelet gaskets from more exotic materials including monel, Inconel and titanium, and also supply spiral wound and RTJ gaskets.

Why Us?

As well as being one of the UK’s leading and most experienced specialists dealing in gaskets and o rings, Munsch & Co is proud to offer one of the fastest services to industry professionals across the UK.


In addition to offering an extensive range of gaskets, our experts are happy to discuss your requirements to ensure that the right sealing materials are selected. Better still, we can deliver affordable solutions with rapid turnarounds regardless of the quantities you need. Whether making low or high volumes, our commitment to excellence remains.


From automotive companies to machinery manufacturers, Munsch & Co has helped thousands of businesses by supplying millions of gaskets for an extensive range of applications. We are one of the most reliable gasket manufacturers in the UK and will happily help you with all your needs in the manufacturing sector and beyond.

What Gaskets Are Right For Your Project?

As mentioned above, we manufacture gaskets from a range of materials including rubber, PTFE, plastic, GylonTM , metal, semi-metal, Non-Asbestos Fibre (CNAF), rubber compound, and rubber bonded cork. So, you won’t struggle to find the products that you need.



When buying seals and components for your industrial needs, however, it’s vital that your supplier can support your company with the right British standard gaskets. If you know exactly what gasket materials and volumes are needed, that’s great. And we can certainly meet your gasket production needs. 



However, if you need help throughout the decision-making processes, we can deliver the expertise and information to ensure the right choice is found. We’ll discuss all key aspects from what you’re trying to seal and how many gaskets are needed to the desired dimensions, pressure ratings, temperature ratings, and more. 



Whether it’s an internal or external pipework application, our gasket manufacturing experts will guide you towards the best solution for safe and efficient sealing that can be used with chemicals, acids, and solvents for frequent and long-term use under the desired load capacities.

Why Gaskets Matter…

Given the number of components needed to operate engines or heavy machinery, it would be easy to assume that gaskets are just another standard feature, which could subsequently lead you to select the first rubber gaskets or metal gaskets available. However, gaskets work in conjunction with flanges and fasteners to create a crucial gasket system.


As well as creating a tight seal on the mating surfaces and withstanding environmental conditions like temperature, gaskets are responsible for controlling flange distortion, transferring heat, minimising torque loss for optimal efficiency, delivering anti-stick properties, and much more.


Whether the intended application is a car engine or food production, gaskets play an integral role in preventing leaks, protecting other components, and maintaining operational efficiency. For industrial machinery, it translates to increased productivity and reduced maintenance, which naturally yields a greater level of profitability. 


When you need machines to reach optimal power and promote a consistent performance free from material or energy waste, selecting the best gasket is vital. Munsch & Co is the perfect gasket manufacturer to make it happen.

Gaskets For All Applications

Each material has slightly different properties from sponge gaskets to corrugated metal gaskets. The gasket choice won’t only be influenced by your industry. Perhaps more significantly, it will be dictated by the type of gasket application.


Some of the most common options for engines are a valve cover gasket, which protects cylinder head hardware and prevents oil leaks in engines, and head gaskets to seal an engine’s combustion chamber. Other options include exhaust manifold gaskets and intake manifold gaskets.


The full list of gaskets won’t be limited to engines and can cover Camlock gaskets, IDF gaskets, PTFE joints sealants, spiral wound gaskets, compressor gaskets, and more. 

Latest News


Brayden Elliott moves up to British Superbikes Class As you may know, this year we are sponsoring Brayden Elliott in the British Superbike series.   Brayden Elliott has been promoted from the Superstock 1000 class to race in the British Superbike Championship for the last 3 rounds following the mutual parting of ways between the

Read More »
PTFE Gaskets

PTFE Gaskets: The Ultimate Solution for Chemical Resistance

Polytetrafluoroethylene, commonly known as PTFE, is a highly versatile material that has become an essential component in the sealing industry. It is a synthetic fluoropolymer with outstanding chemical resistance, high-temperature tolerance, and low friction coefficient properties that make it an ideal choice for a wide range of sealing applications and ideal for gaskets including: Excellent

Read More »

What Are Oil Seals? Oil Seal Applications & Uses

Table of Contents What Are Oil Seals? Oil seals, also known as rotary shaft seals, are a type of gasket used to prevent lubricant leakage and contamination in rotating machinery by creating a barrier between the moving and stationary parts. These seals are designed to fit snugly around the shaft of the machine, preventing oil

Read More »
vulcanisation of rubber

A Guide to the Uses and Benefits of Vulcanised Rubber

Vulcanised rubber is a material that has been used for generations. In fact, a primitive form of rubber products boasting the physical properties attributed to the vulcanisation process can be dated back thousands of years.  This guide to the purpose and benefits of vulcanised rubber will allow you to make full use of it. Some

Read More »
Rubber Bushes

How do we make rubber bushes?

Rubber bushes are an important product in our range.   We supply rubber bushes, up to 300mm long, as calendared rubber sheet is not generally available thicker than 50mm (2″)   The other advantages of moulded and lathe parted rubber bushes are as follows:   Minimal wasteage compared to cutting from sheet. Much wider range

Read More »
PVC Curtains

PVC Curtains, to help keep staff warm

PVC Curtains   Lots of factories and industrial units keep a door open to the outside, to allow people, forklift trucks, deliveries and materials to enter and exit easily and not all of these have PVC Curtains..   While this is a necessary requirement for many businesses, it can make autumn & winter an uncomfortable

Read More »
Scroll to Top