NEW

Optimum squeezing force for an o ring

It is true that the more squeeze you place on an o ring, the tighter the seal it will provide. In essence, the more squeeze (compression) you apply, the greater the force between the o ring and its mating hardware.  And ensuring you have the perfect seal is all...

O Ring Squeeze

The squeeze and shrinkage on an o ring are vital to understanding as these factors stand in the way of your application either experiencing a perfect seal or your application suffering from leaks.  You can measure the shrinkage of an o ring during...

Keeping your o rings bonded

EMI o rings. Those seal ring gaskets are made of silicone compounds, combining environmental sealing with electromagnetic interference protection.  Consisting of metal or metal-coated particles, silicone o rings are filled with silver, silver aluminium, or nickel...

The importance of mechanical seals when reducing water consumption in mining

Environmental considerations are at the top of most industry's agendas in the 21st century as companies evaluate and improve operations, processes, and systems.  Conserving water in mining is one such area that is now being investigated further with the rotation of...

How choosing the correct gasket reduces risks

Health and Safety across any industry are vital, especially so in industrial facilities and settings.  Why?  Because harmful leaks and emissions must be avoided at all costs to avoid serious accidents or injury to your teams and property.  That’s why having the right...

How to tighten your bolts perfectly

How to tighten your bolts and which tools you should use to achieve the perfect seal is not as seamless and straightforward as we would like. Various factors come into play in these situations, such as bolt grade, size, and even application type.  Tightening torques...

Static and Dynamic o rings

A range of factors and application dynamics come into play when choosing a particular type of o ring.  You need to understand the type of seal exert you require, the dimensions, and even compounds.  Due to the nature of an o ring and its overall design, o rings use...

Gasket Sealants

Fortunately, no one gasket suits a range of applications, but rather we have a multitude of gasket sealants available to meet various specifications and requirements.  Ultimately, sealants are used to effectively ensure gasket seals.  Helping to extend a gasket's life...

Types of industrial gasket material

Different industry sectors will use different types of gaskets and different types of gasket materials.   And of course!  Different industrial gasket materials will be much better suited to some industrial processes and applications compared to others.  As different...

Keeping a close eye on the gaskets your applications use

Gaskets are vital elements to any piping system and application that requires creating the perfect seal in order to prevent leaks.  This is the main role of a gasket, to provide a good seal, with some gasket materials sealing better than others in certain...

Materials that can be Used in Producing Gaskets

Materials that can be Used in Producing GasketsSeals 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 sealed surfaces and not extrude.    

Its requirements extend to remaining stable and whole as this lends to the durability of the application in which it is used. Taking these demanding necessities into consideration means a gasket manufacturer must use the latest technology and the best materials to produce an acceptable product.    

Common Materials used in Gaskets 

Gasket materials can be divided into four basic categories.   

Elastomeric Materials 

Standard gasket production involves fabricating from sheets of materials. The most common form of sheet material used is an elastomer mixed with anonymous filler/fibre 

  • Butyl rubber: Resistant against ozone, gas, mild acids and alkalis; weakens on exposure to oil or fuel.  
  • Chlorosulphanated polyethene: Resistant against acids, alkalis, oil and fire.  
  • Ethylene propylene diene: Resistant against ozone, steam, acid, and alkaline liquids and vapours; unsuitable for proximity with solvents and aromatic hydrocarbons.  
  • Fluoroelastomer: Resistant to many corrosives, oils, aliphatic hydrocarbons and acid; unsuitable for proximity to esters, steams, vapours, amines and ketones.  
  • Rubber: Flexible with excellent resistance to acid/alkalis and salts; unsuitable for proximity to oil or solvents; weakens when exposed to long-term oxygen, ozone or UV/sunlight.  
  • Neoprene®: Withstands oils, ozone, sunlight/UV exposure, mild acids, alkalis, salts and solvents.  
  • Nitrile: Resistant to chemicals and temperatures, hydrocarbons and oils/fuels. Unsuitable foresters, ketones, strong oxidants and petroleum derivatives.  
  • Ask the experts at Specialist Sealing Products for more in-depth information about other elastomeric materials and their properties that are used in the manufacture of gaskets.  

Fibrous Materials 

Fibrous materials are well suited to any application that requires constant fibrillation without extrusion or wear and tear.   

  • Aramid: Kevlar is the best-known use of aramid which is composed of polymer fibres linked in rings. This structure gives an aramid gasket strong stability when used within a medium temperature range.  
  • Asbestos: This material still has its uses in gasket manufacture because of its extreme resistance to heat as well as pliability and strength.  
  • Carbon fibre: A gasket made from carbon fibre does not retain or build up the heat; it disperses it, and this must be taken into consideration with the surrounding parts in the application. It is widely resistant to chemicals and acids/alkalis.  
  • Cellulose: The constituent that makes plant stalks; it is bendable yet strong. It imparts these properties to gaskets.  
  • Glass: Not brittle; strong and chemical resistant.  
  • Mineral wool: Gaskets made from this man-made fibre are best suited to medium temperatures.  

Other Gasket Materials and Types 

  • Flexible graphite 
  • Mica 
  • Cork 
  • PTFE (Teflon™)

Metallic Materials 

Gaskets types made from metallic materials are best suited to sealing higher temperatures and pressures. They are mostly used for applications such as compressors, pumps, valves and condensers. They are manufactured from carbon steel, titanium alloy, aluminium and copper.   

When unsure whether an application should use a metallic, fibrous or elastomeric gasket, reach out to an expert at Specialist Sealing Products for advice on the best gasket type. Their extensive knowledge of seals and gaskets will set you up for success.

Find Out More Here!

Previous

Next

Contact Us
close slider

Your Details

Let us know how to get back to you.


How can we help?

Feel free to ask a question or simply leave a message.