NEW

Everything you need to know about Manway Gaskets

When it comes to manway gaskets, we want to keep things simple, introducing them as the small sealing ring found in hatches/openings that are constructed for large tanks. Openings which give people access to the inside of the aforementioned tanks and vessels. The...

How Do You Recognise a Quality Gasket?

A gasket is a very simple item that is reasonably inexpensive. Considering how gaskets work, you may be facing a costly bill should a gasket fail. Choosing a quality gasket from Specialist Sealing Products helps to create a seal that will last until well after the...

5 Common Gasket Failures

Common Failure Causes  A blown head gasket in a vehicle is something that needs to be fixed promptly. If left untouched, you run the risk of seriously damaging your engine. Knowing what causes gasket failure or gasket problems is the key to gasket failure prevention,...

O-ring Size Guidelines

The performance of an O-ring seal depends largely on two factors— the right material and the right size. However, determining the right size O-ring is usually the hardest part when it comes to choosing the right O-ring for an application.   Unfortunately, selecting...

Tips for Proper O-Ring Installation

  An O-ring is a crucial component of a fluid system, and how it is installed can make or break that system. To ensure the success of an application, O-ring requires not only careful material selection and design but also proper installation procedures. A small...

Why Colour Matters When Choosing Gaskets?

Gasket manufacturers have turned to colour coding gaskets to make the selection and categorisation of the product more accessible.   It is possible to identify the winding and filler materials that were used for fabrication by the colouring of the outer top side of...

Materials that can be Used in Producing Gaskets

Seals and gaskets are meticulously manufactured to be able to withstand the exacting conditions under which they function. Not only does a gasket seal two distinct parts and allow the containment of extreme temperature fluids, steams and gases, but it must meld the...

Choosing the Perfect Gasket for Your Needs

The perfect gasket choice and fit is an essential component of engines, appliances, and industrial machinery projects. They are a fundamental part when engineering anything from power tools to oil drills. A high-quality manufacturer of gaskets and seals will use only...

Manufacturing of High-Quality Gaskets

A large number of engineering and machinery applications use gaskets. This mechanical seal is employed whenever gaps between two or more surfaces are joined together. This process is also required to prevent leakage and withstand the extremes of compression when...

O Ring Materials Selection

This is a quick overview of the various O-Ring materials that are available for applications and found at select UK O-Ring suppliers. When it comes to Specialist Sealing Products, it is a good idea to be clued into every option that is on the market. The materials can...

Compressed Non-Asbestos Fibre Material (CNAF) 

This range of products have been designed and manufactured to replace the now extinct and banned range of Asbestos based gasket materials. 

Manufactured from a mixture of organic fibres and rubber binders, with fillers based on synthetic fibres, mineral fibres, carbon, aramid and glass fibres this range of sheeting products offer great versatility thanks to their highly flexible chemical and physical properties ensuring sealing of maximum reliability and durability even in critical sealing applications. 

There are 3 main sub categories of CNAF materials each category having several different versions using a blend of different fibres and fillers to meet varying service conditions to seal media at a range of temperatures and pressures. 

This range of products are available from stock as cut gaskets or in sheet form up to 2 metre x 1.5 metre and in a range of thicknesses up to 3 mm as standard 

Grade X

Superior performance CNAF sheet jointing with excellent mechanical properties and good chemical and temperature resistance. The manufacturing compounds are based on Glass, Inorganic and Aramid Fibres bound with high quality Nitrile NBR binder meeting the requirements of BS7531 Grade X. 

  • WRAS / WRC Approved for use in hot and cold potable water 
  • API 6FB Fire-Safe 
  • TA-Luft (clean air) in accordance with VDI guideline 2440 
  • Temperature from –200⁰C up to 400⁰C 
  • Maximum Pressure up to 120 bar 
  • Excellent resistance to solvents, refrigerants, water and steam 
  • Media compatibility with oils, fuels, solvents, and hydrocarbon compounds 
  • Suitable for use with Oxygen Service 

Grade Y 

High quality CNAF sheet jointing specifically developed to meet the requirements of BS 7531 Grade Y. 

These have compressed aramid fibres with a combination of other functional fillers bound with a high quality nitrile rubber and are suitable for use across a broad range of industrial sealing applications.  

  • WRAS / WRC Approved for use in potable water 
  • Fire-Safe 
  • TA-Luft (clean air) in accordance with VDI guideline 2440 
  • Temperature from -200⁰C up to 450⁰C 
  • Maximum Pressure up to 140 bar 
  • Resistance to solvents, refrigerants, water and steam 
  • Media compatibility with oils, fuels, and hydrocarbon compounds 
  • Suitable for use with Oxygen Service 

General Service Grade 

A cost effective grade of CNAF sheet jointing based on a mixture and blend of fibres bound with a nitrile rubber binder. Suitable for general use including oils, hydrocarbon compounds and low pressure steam and water 

  • Temperature from –100⁰C up to 250⁰C 
  • Maximum Pressure up to 50 bar 
  • Resistance to solvents, refrigerants, water and steam 
  • Media compatibility with oils, fuels, and hydrocarbon compounds 

Callback Request