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Why Should You Invest in Quality Seals?

While industrial seals might seem like something you could save a little money on, this is one part that we don’t recommend cutting costs on. A quality seal will offer many benefits to your business and operations, so it’s worth taking the time to find a solution...

All you need to know about Neoprene O rings

Popular in the refrigeration industry, neoprene o rings are also growing in popularity across a wide range of other sectors due to their incredible resistance to hazardous materials. Also known as chloroquine o rings, these o rings provide excellent resistance to...

Why all sealants are not the same

It's important to understand just how critical it is to use the correct type of sealant. It's especially the case when working with heavy machinery or any industrial situation. You don't want to have to worry about whether your sealing products are working correctly...

How to understand O-rings and their design

O-Rings are a critical component for the proper sealing of specific pipes. They have to sit within a specified groove, which can vary based on the hardware used. That's why it's important to note the various types of o-ring groove design to understand better what kind...

The importance of gasket thickness

Choosing the right gasket material for specific applications is vital. However, gasket thickness is also a feature that must not be overlooked in the decision-making process. Choosing the right gasket thickness can help when you’re experiencing challenges with...

How Temperature Impacts Gasket Performance

When using a spiral wound gasket, there are many things you need to keep in mind. The most common issue we hear people discuss regarding gasket performance issues at high temperatures. If you are using a gasket for the first time at a new temperature and notice it...

How Thick Should Gasket Paper Be?

When creating gaskets, one of the most common questions we receive is regarding gasket paper thickness. You’ll find there are various options on the market, which come in different sizes and thicknesses. Today we’re going to discover what gasket paper is and how you...

O-Rings for the Beer Industry

O-rings offer a wide range of applications, and many people aren’t aware of just how versatile an o-ring can be. When working with o-ring suppliers in the UK, you’ll soon find out that we supply these to a range of businesses, including to breweries. Today we’re going...

Gasket Safety

Gaskets and seals are vital components for applications requiring a solid seal, helping prevent leaks and stop gases and other chemicals from escaping.  However, over time, and due to the fluctuating temperatures, compression sets, and exposure to chemicals, seals do...

Is fluorosilicone rubber o rings a sustainable choice?

Fluorosilicone rubber, also known as FVQM or MFQ, contains 23-28% fluorine and has nearly the same physical and mechanical properties as standard silicone rubber as matches on par with their flexibility at low temperatures.  However, due to its fluorine...

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.

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