Novus™ and Sigma® Gasket Materials

Novus™ and Sigma® Gasket Materials
 

We have been a ‘go to’ supplier for all forms of gaskets and gasket materials for many years. Our extensive range includes the popular Novus™ 5G compressed fibre and Sigma® PTFE ranges. 

Manufactured as compressed fibre, non-asbestos alternatives, the Novus™ 5G materials combine high specification nitrile rubber binders with a variety of natural and synthetic fibres. This results in a variety of BS7531 conformant materials known for their excellent sealing properties at high and low temperatures and at a range of pressure levels.

We also supply a collection of Sigma® gasket sheet materials manufactured with a PTFE base. These materials display excellent dimensional stability, outstanding resistance to almost all chemicals across the PH range, and are temperature rated from -250°C up to +250°C. This, along with FDA approvals, makes them particularly suited for chemical conveyance and food contact applications.

Our bespoke CNC profile cutting and gasket manufacturing facilities allow us to convert all Novus™ and Sigma® materials into flange table gaskets, picture frame gaskets, custom shapes, washers and seals.

If you're unsure which grade of material is best suited to your application, please contact us with the information below so we can provide the best advice where possible in order to help your decision.

  • Operating Temperature
  • Operating Pressure
  • Conveyant
  • Gasket Size and Details (If standard flange, please see the flange gasket tables).

You will also find a comparison table and chemical resistance chart at the bottom of the page which may help you make your decision.

Compressed Fibre Novus™ 5G Gasket Materials

Novus™ 10
Novus™ 10

A premium grade, carbon reinforced compressed fibre material with a nitrile rubber binder. Commonly used in high temperature, high pressure applications. It displays excellent resistance to steam, oil, fuel, refrigerants and creep. Max. Temp.: +425°C. Max. Pressure: 100 bar.

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Novus™ 30
Novus™ 30

Manufactured from a blend of aramid and inorganic fibres. Novus™ 30 sheet has a high specification rubber binder and is ideally suited for sealing applications involving hot and cold water, steam, oils, fuels, gases and chemicals. Max. Temp.: +400°C. Max. Pressure: 100 bar.

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Novus™ 34
Novus™ 34

Combining aramid and inorganic fibres blended with special additives. Novus™ 34 is a high specification sealing material that is used in a wide range of industrial applications. This option is suitable for use with oils, solvents, high pressure steam and gases. Max. Temp.: +450°C. Max. Pressure: 100 bar.

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Novus™ 45
Novus™ 45

Novus™ 45 is manufactured from a selection of recycled and non-recycled synthetic fibres that are bound together with a high quality nitrile rubber. This material is commonly used in sealing applications involving oils, solvents, gases, water, low pressure steam and mild chemicals. Max. Temp.: +300°C. Max. Pressure: 60 bar.

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Novus™ 49
Novus™ 49

A high performance material containing a large graphite percentage that is reinforced with aramid fibres and a nitrile rubber binder. Novus™ 49 displays excellent mechanical properties and is commonly used in oil, solvent, gas and high pressure steam applications. Max. Temp.: +420°C. Max. Pressure: 100 bar.

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PTFE Sigma® Gasket Materials

Sigma® 500
Sigma® 500

A biaxially orientated PTFE material containing hollow glass fibres. Sigma® 500 is FDA and WRAS approved. It is a popular choice in food, drink, pharmaceutical and chemical applications that have a low bolt load requirement. Max. Temp.: -250°C to +260°C. Max. Pressure: 85 bar. 

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Sigma® 511
Sigma® 511

Sigma® 511 is a biaxially orientated PTFE material with a silica filler. It is WRAS and FDA approved and is used in sealing applications involving harsh acids and chemicals (excluding hydrofluoric acid, alkali metals, fluorine gas or hydrogen fluoride). Max. Temp.: -250°C to +260°C. Max. Pressure: 85 bar.

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Sigma® 533
Sigma® 533

A PTFE base material with a barium sulphate filler. This high performance material is suitable for sealing applications across the full PH scale, particularly with strong alkalis (excluding molten alkali metals, fluorine gas and anhydrous HF). Max. Temp.: -250°C to +260°C. Max. Pressure: 85 bar. 

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Technical Specification

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