Non-Asbestos Gaskets

Non-Asbestos & Compressed Non-Asbestos Fibre Gaskets

The ban on asbestos in the 1990s required industry to transition from asbestos-based gaskets to alternative sealing solutions. Historically, asbestos gaskets were widely specified in engines and heavy industrial systems, particularly high-pressure steam applications, due to their inherent thermal stability and sealing performance.

Today, advanced Compressed Non-Asbestos Fibre (CNAF) materials have become the standard. Manufactured by leading suppliers such as Klinger and Flexitallic, these materials typically comprise aramid, carbon, or glass fibres reinforced with rubber binders. The result is a high-integrity sealing medium designed to maintain flange face tightness and prevent leakage under demanding service conditions.

CNAF materials are available in a range of grades, tailored to meet specific requirements for temperature resistance, pressure containment, and chemical compatibility. This ensures reliable performance across diverse industrial applications.

Manufacture

Applications

Ferolite NAM 39

The material Composition of these gasket sheets includes Cellulose Fibre and Mineral Fibre & Organic Fibre + NBR

Ferolite NAM 37

The material Composition of these gasket sheets includes Aramid Fibre, Mineral Fiber + NBR

Ferolite NAM 30

Gasket sheets Ferolite NAM 30 are suitable for oil resistant gasket material for medium to higher loading, good resistance to water and gases, oils & fuels.

Ferolite NAM 32

Suitable for high performance,oil resistant gasket material with excellent thermal, chemical & mechanical properties.

Ferolite NAM 32CR

Gasket material for various highly different aggressive media and very good chemical resistance to acid & alkaline media.

Ferolite NAM 42 GF

An excellent material for high stress condition. It offers a high media resistance to many of the aggressive media. It exhibits good sealing and torque retention properties.

The Manufacture of NAF & CNAF Gaskets

We manufacture non-asbestos and compressed non-asbestos fibre gaskets as new or as replacements for existing asbestos material gaskets to suit the requirements of the customer. We use CAD design to create precision gasket profiles and cutting-edge manufacturing equipment to guarantee the accuracy of the finished gaskets over large or short runs.

Our experienced team can help clients with material specifications to meet the demands of a range of applications. We offer cost-effective manufacturing for small volume runs. All gaskets are supplied to recognised national and international standards.

Key Features

Excellent chemical and fluid resistance
High operational temperatures and pressures
Excellent resistance to stress
Suitable for steam, water, hydrocarbon and chemical applications
Outstanding flange sealing integrity, including uneven surfaces
High mechanical strength and dimensional stability

NON ASBESTOS GASKET APPLICATIONS

NAF & CNAF Gasket Applications

NAF and CNAF gasket materials are widely used across industrial sectors for sealing flanged joints and preventing leakage of liquids and gases. Typical applications include pipelines, pumps, compressors, and valves handling steam, water, oils, hydrocarbons, and a range of process chemicals.

Their strength, thermal stability, and chemical resistance make them suitable for demanding environments in power generation, chemical processing, marine, and general manufacturing, where reliable and cost-effective sealing is essential.

Water Treatment & Utilities
HVAC
Power Generation
Automotive, Aerospace & Marine
Chemical Processes
Oil, Gas & Petrochemical
Steam Processes

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Our highly experienced technicians can advise you on the best sheet materials and manufacturing processes for a wide range of gasket applications.

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Gasket Sheet Materials

We supply a vast range of gasket materials, available to buy directly or order from us. For more information visit the Gasket Sheet Materials Document.

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