Gaskets, Washers and Seals

A gasket is a sealing component typically placed between two surfaces to prevent leaks of gases or liquids. Gaskets are used in countless applications, from engine assemblies to chemical pipelines, and are manufactured from a wide range of materials including rubber, metal, cork, PTFE, and compressed non-asbestos fibre.

A gasket works by being compressed between two surfaces, filling microscopic irregularities and creating a tight seal. Materials like PTFE gaskets offer excellent chemical resistance, while metal gaskets can endure extreme pressure and heat. The material and style of the gasket are chosen to match the operational demands of the application.

You’ll need a gasket whenever two joining surfaces are exposed to pressure, fluid, or thermal expansion and require a reliable seal. For example, rubber gaskets are often used in plumbing, while exhaust gaskets are suited for high-temperature engine systems. Without the right gasket, these systems would be prone to leaks, contamination, or even mechanical failure.

There are several types of gaskets, each designed for different applications. These include rubber gaskets for flexible sealing, PTFE gaskets for chemical resistance, non-asbestos gaskets for high-temperature and pressure environments, metallic gaskets for extreme conditions, and cork gaskets for low-pressure fuel and oil systems. Sponge gaskets are often used in dust or moisture sealing.

Gaskets at PTM are produced using advanced techniques, including CNC knife cutting, water jet cutting, and traditional press tooling. With over 15,000 pre-made cutting forms and an extensive range of materials, we can produce everything from standard rubber seals to bespoke metal gaskets and large-format seals with dovetail joints.

Gaskets are essential across many sectors including automotive, marine, food & beverage, pharmaceutical, oil & gas, and engineering. Each industry has its own requirements—from the hygiene standards of PTFE gaskets used in pharmaceuticals to the thermal resistance of exhaust gaskets in transport.

Yes, we can manufacture custom gaskets from your drawings or specifications. Whether you require a specific thickness, material, or complex shape, our in-house capabilities allow us to produce tailored solutions quickly and efficiently. From cork gaskets to high-performance metallic gaskets, we ensure the right fit for the job.

For chemical processing and corrosive environments, PTFE gaskets are often the most suitable choice due to their exceptional resistance to acids, solvents, and alkalis. In some cases, compressed non-asbestos gaskets or graphite-based options can also perform well, depending on the specific chemicals and temperatures involved. It’s always best to match the gasket material precisely to your operating conditions for long-term reliability.

Accurate measurement is key when replacing a gasket. You’ll need to note the inner and outer diameter, thickness, and bolt hole placement. For flanged connections, identifying the standard (such as BS10 or ASME) can also help. PTM provides a helpful guide on how to measure various gasket types, including round, rectangular, and manifold styles, to ensure you get the perfect fit.

It’s important to consider the environment in which the gasket will operate—temperature, pressure, chemical exposure, and surface compatibility all play a role in selecting the correct material. If in doubt, our experienced team can guide you through whether sponge gaskets, non-asbestos gaskets, or any other type is best for your needs.

Gaskets at PTM are produced using advanced techniques, including CNC knife cutting, water jet cutting, and traditional press tooling. With over 15,000 pre-made cutting forms and an extensive range of materials, we can produce everything from standard rubber seals to bespoke metal gaskets and large-format seals with dovetail joints.

Gaskets are essential across many sectors, including automotive, marine, food & beverage, pharmaceutical, oil & gas, and engineering. Each industry has its own requirements—from the hygiene standards of PTFE gaskets used in pharmaceuticals to the thermal resistance of exhaust gaskets in transport.

Yes, we can manufacture custom gaskets from your drawings or specifications. Whether you require a specific thickness, material, or complex shape, our in-house capabilities allow us to produce tailored solutions quickly and efficiently. From cork gaskets to high-performance metallic gaskets, we ensure the right fit for the job.

For chemical processing and corrosive environments, PTFE gaskets are often the most suitable choice due to their exceptional resistance to acids, solvents, and alkalis. In some cases, compressed non-asbestos gaskets or graphite-based options can also perform well, depending on the specific chemicals and temperatures involved. It’s always best to match the gasket material precisely to your operating conditions for long-term reliability.

Accurate measurement is key when replacing a gasket. You’ll need to note the inner and outer diameter, thickness, and bolt hole placement. For flanged connections, identifying the standard (such as BS10 or ASME) can also help. PTM provides a helpful guide on how to measure various gasket types, including round, rectangular, and manifold styles, to ensure you get the perfect fit.

It’s important to consider the environment in which the gasket will operate—temperature, pressure, chemical exposure, and surface compatibility all play a role in selecting the correct material. If in doubt, our experienced team can guide you through whether sponge gaskets, non-asbestos gaskets, or any other type is best for your needs.