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Flange Gasket materials – What you need to know

Getting the most out of flange gasket materials and ensuring the performance of the gasket is not affected when you come to use it, means several things must be taken into consideration.  For example, factors such as their design, how they’re manufactured,...

Spiral Wound Gaskets and Sheet Gaskets

Gaskets come in a range of different shapes and sizes.  All are offering similar functionality; gaskets are produced using a range of different materials to suit a range and a variety of environmental factors, industrial uses, and product requirements.  When it...

Benefits of Kammprofile Gaskets

Used to prevent leakage, gaskets are constructed to fit between a range of different sizes and types of surfaces in order to provide the perfect seal.  Typically used in pipes and heat exchangers, gaskets are widely used as industrial sealants. ...

Purpose of a Kammprofile Gasket

The ultimate purpose of a gasket is to stop leaks while being able to deal with varying levels of compression.  When it comes to Kammprofile gaskets, these are ideal for standard pipeline and heat exchanger applications.  As due to their grooved metalcore, with a...

Are your gaskets completely compliant?

In industries where gaskets are not just important but essential, there are numerous challenges to be faced and considerations to take on board.  This is especially true when it comes to making sure this “essential” element is also compliant.  With the...

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...

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...

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...

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...

Graphite Gaskets and Sheeting Material 

Graphite has become a very popular gasket choice for sealing applications requiring high performance combining excellent chemical resistance with an exceptionally wide temperature range from cryogenic to above +400⁰C and having excellent resistance to stress relaxation at elevated temperatures. 

This exfoliated graphite material is available in purity grades of 95% to 98% and 99.5% for nuclear applications 

There are many different versions within this family of graphite based materials ranging from plain homogenous graphite to being laminated and reinforced with stainless steel, nickel, aluminium and many other metals should such service conditions require. Materials are also available with ‘multi-layers’ offering even greater resistance to higher pressures or with polymeric layer ‘clean’ coating to aid handling. 

  • Outstanding resistance to high and low temperatures 
  • High compressibility 
  • Resistant to virtually all media 
  • High pressure  
  • Unlimited storage life  

Although we have many versions available within the graphite family most applications are covered with four primary options 

Plain Homogenous Graphite 

This material is manufactured from expanded graphite foil without any form of insert or reinforcement. This is available in purity of 98% for standard grades and 99.5% ultrahigh purity for use in applications within the nuclear industry. 

  • Maximum Temperature (oxidising media) +400⁰C 
  • Maximum Temperature (inert/reducing media) +2500⁰C 
  • Minimum Temperature -200⁰C 
  • Low coefficient of friction and excellent residual stress 
  • Very easy to cut 

Nickel Reinforced Graphite 

This is a jointing of 98% purity exfoliated graphite sheet with a reinforced adhesive bonded layer of nickel foil. Recommended for use in general sealing applications.  

  • Maximum Temperature (oxidising media) +400⁰C 
  • Maximum Temperature (inert/reducing media) +1000⁰C 
  • Minimum Temperature -200⁰C 
  • Excellent sealing integrity 
  • Very easy to cut, handle and install 

    Stainless Steel Reinforced Graphite

    This is a jointing of 98% purity exfoliated graphite sheet with a reinforced adhesive bonded layer of flat 316 stainless steel. Recommended for use to seal a wide range of media in both high and low temperature and pressure applications.

     

    • Maximum Temperature (oxidising media) +400⁰C
    • Maximum Temperature (inert/reducing media) +700⁰C
    • Minimum Temperature -200⁰C
    • Excellent sealing integrity
    • Very easy to cut, handle and install
    • High Compressibility
    • Resistant to virtually all media
    • Good leakage properties

    Stainless Steel Tanged Graphite 

    This is a jointing of 98% purity exfoliated graphite sheet with a reinforced mechanically bonded layer of tanged 316 stainless steelThis insert allows the product to be used for applications involving high sealing stresses and requiring high blow-out resistance in industries such as petrochemical and process. 

    • Maximum Temperature (oxidising media) +450⁰C 
    • Maximum Temperature (inert/reducing media) +2500⁰C 
    • Minimum Temperature -200⁰C 
    • Exceptional resistance to blow-out and crushing 
    • Strong composite construction without adhesives 
    • Excellent resistance to steam 
    • Extra strength for ease of handling and installation 
    • High Compressibility 
    • Resistant to virtually all media 
    • Good leakage properties 

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