Non-Asbestos Gaskets

Non Asbestos Gaskets

If your application needs resistance to high temperatures, (Up to 400° C) or high pressures, (Up to 140 Bar), we supply Non-Asbestos gaskets in our full range of materials.

Asbestos gaskets were used in heavy industry, engines and pipelines, until public awareness of diseases linked to asbestos meant that manufacturers had to develop alternative materials for gaskets. The replacement materials they developed are made by compressing fibres, (aramid, inorganic or graphite) with a rubber binder, which is a lot safer than, the now banned, asbestos. They can also be referred to as fibre, CNAF or NAF gaskets.

The rubber binder is usually Nitrile, but there are variations if you need a different binder, like EPDM or SBR, for instance.

We make Non-Asbestos gaskets from our range of materials produced by the world’s leading sheeting manufacturers, including Garlock, Flexitallic, Klinger and Reinz.

Unlike CAF (Compressed Asbestos Fibre), there are many different grades of Non-Asbestos gaskets. With our knowledge and familiarity with the materials, we can help you select the right grade for your application.

Our team are experienced at producing all types of Asbestos free gaskets in our gasket shop. We produce standard table gaskets daily, however if you need a bespoke seal making, we will work with your drawings or samples.

We often utilise our two, oscillating knife CAD/CAM cutting tables to produce the gaskets, because we can “Nest” a series of gaskets to achieve the best yield from the material.

Styles of Non-Asbestos Gaskets

Click on the links below to download a data sheet on the different grades.

All the Non-Asbestos gaskets that we manufacture are produced in accordance to our ISO9001:2015 quality standards.

Below, we will give an overview on each grade’s main features.

Temperature range, pressures and chemical resistance vary between the grades, but by clicking on the link, you can download a more comprehensive data sheet.

Garlock Materials

Style-3760

Multi-swell 3760

The MULTI-SWELL™ 3760 is the ultimate problem solver for those lightweight flange and covers where nuisance oil and water leaks plague most industrial facilities. Unlike traditional vegetable fibre and cork gaskets that allow water and oil to “wick” through the body of the gasket, the MULTI-SWELL absorbs the media at the inside edge, swells, and creates a tighter, long term seal.
Data Sheet
IFG-5500

IFG 5500 – ABS Fire-Safe Type Approved

Inorganic fibres with a nitrile binder. IFG5500 offers excellent thermal stability with minimal weight loss, reduced creep relaxation and improved torque retention. The inorganic fibres have excellent thermal and oxidation resistance, withstanding a continuous operating temperature of up to 550° F (290° C), and maximum spike of 800° F (425° C).
Data Sheet
Garlock Style

Garlock 9900 – ABS Fire Safe Approved

Graphite fibres with a nitrile binder. Style 9900 gasket is composed of graphite fibres with a nitrile binder, allowing it to withstand extreme conditions. This high temperature gasket has passed Garlock® fire tests and is ABS Fire Safe Type Approved.
Data Sheet
Garlock 9850 - Fire Safe

Garlock 9850 – Fire Safe

Carbon Fibers with a Nitrile Binder. Style 9850 gasket is composed of carbon fibers with a nitrile binder. This high temperature gasket has a long-lasting seal, which minimizes cold flow and creep relaxation problems.
Data Sheet
Garlock 9800

Garlock 9800

Carbon Fibers with a SBR Binder. Style 9800 gasket is a high temperature gasketing composed of carbon fibers with an SBR binder. This high performance material maintains its seal during pressure and temperature fluctuations, reducing leakage rates and maintenance time.
Data Sheet
Blue Gard

Blue-Gard® 3700

Aramid fibers with an EPDM binder. BLUE-GARD® Style 3700 is a compressed, non-asbestos gasket made from aramid fibers with an EPDM binder. This gaskets drastically lowers emissions levels, fluid loss, and energy consumption.
Data Sheet
BlueGard-3400

Blue-Gard® 3400

Aramid Fibres with an SBR Binder. BLUE-GARD® Style 3400 is a compressed, non-asbestos gasket made from aramid fibres with an SBR binder. Its excellent sealability can drastically lower emissions levels and reduce waste in water, saturated steam*, and inert gas applications.
Data Sheet
BlueGard-3300

Blue-Gard® 3300

Aramid Fibres with a Neoprene Binder. BLUE-GARD® Style 3300 provides excellent sealability, which drastically lowers emissions levels and provides cost savings. This style can be used in many applications, including refrigerants, oils, and fuels.
Data Sheet

Flexitallic Range of Non-Asbestos Gaskets

Novus 49 gasket

Novus 49 – WRAS Approved : Complies with BS Specification 7531 Grade X

A compressed non-asbestos sheet material which combines a high percentage of graphite, reinforced with aramid fibres and a small amount of rubber binder system. A high performance material with excellent mechanical properties, it is suitable for many applications including oils, solvents, high pressure steam and gases including oxygen.
Data Sheet
Novus 10 Cutter 2

Novus 10 – BS Specification 7531 Grade X: API 607 Fire Safe

A premium grade compressed sheet material based on carbon fibre with a high quality nitrile rubber binder system suitable for use under alkaline conditions with good steam resistance. It also possesses excellent creep resistance and is suitable for use with oils, fuels and refrigerants.
Data Sheet
Greeneseal

Greeneseal© Non-Asbestos Gaskets

Manufactured for us in the UK, by Flexitallic and based on a blend of aramid and inorganic fibre with a nitrile binder. Greeneseal© is a medium quality, cost effective non-asbestos gasket material. Suitable up to +150° C. See our data sheet for more details.
Data Sheet

Klinger Range of Non-Asbestos Gaskets

Klingersil C4500

C4500 -BS 7531 Grade Y and has TA-Luft (Clean Air) approval

C-4500 is a premium grade material based on carbon fibre with NBR binder designed for use with higher temperatures and pressures than the majority of calendared materials. The use of carbon fibres increases resistance to temperature related aging and to attack when used in alkaline services. C-4500 is fire-safe.
Data Sheet
Klingersil C4324

C4324 -WRAS approved. Complies with BS Specification 7531 Grade Y

C-4324 is a cost effective grade material with very good mechanical strength often used for general purpose applications. Based on a blend of glass, aramid and carbon fibres bonded with NBR rubber C-4324 has good resistance to oils, fuels, hydrocarbons, water, low pressure steam and also for weak acids and alkalis
Data Sheet

Reinz Materials

The temperature ranges of the above grades are a guide and it is important that you check the full data sheet, or discuss your application with one of our experienced team, as you may be restricted depending on the pressure and media.

We are happy to advise on any application, but final responsibility lies with the customer.

Choose PTM Ltd. for all your rubber extrusion needs.

There are many companies on the market that supply rubber extrusions, but only our company has an extensive catalogue, where you will find we supply a comprehensive range of rubber products we manufacture from a vast array of materials including standard rubber extrusions and those made of natural rubber.

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