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Threaded Flange

Threaded flanges are probably the most recognisable of all flanges due to their screw thread design that is used to connect it to the pipe. Threaded flanges, also known as screwed flanges (for obvious reasons), require a male and female thread to create a connection...

Slip On Flange

A slip-on flange can also be known as a hubbed flange, which, as the name suggests, has a hub with a very low profile. Why is this important? Because this type of ring type joint gasket has an internal diameter larger than the connecting pipe, allowing you to slide it...

Weld Neck Flange

Also known as tapered hub flanges or high hub flanges, weld neck flanges are a specific type of gasket with a protruding ridge and long neck used to connect pipework and provide you with a high-quality seal. Weld neck flanges, in particular, are a popular choice when...

Nitrile vs Viton® – What is the Difference?

As you start to make a decision about what type of O-rings to purchase for your business, you might wonder what material is the most suitable for your unique needs. Every business operation has different requirements for their O-rings, such as the temperature,...

Aflas vs Viton

When it comes to choosing O ring suppliers in the UK, you’ll find that there are a wide range of materials on offer for you to choose from. Many people find that the options can seem quite overwhelming, with some materials having similar properties but offering...

EPDM Gasket

Both the automotive and construction industries have started to use EPDM gaskets more frequently in recent times. This rubber material is UV light resistant and has many fantastic properties that make this part highly effective for a wide range of processes. Keep...

Metal Gaskets

When comparing gaskets for use within your business processes, you’ll find that these can be made from a variety of materials. Metal gaskets are a very popular option, offering many advantages over other materials. When looking at sealing product options, make sure...

AFLAS o ring

O rings come in many different dimensions, thicknesses, and materials. And it is the various different materials that o rings can be manufactured from that make each o ring unique and suitable for specific applications. In fact, there are hundreds of different types...

O Ring Vulcanization Process

With years of o ring knowledge and experience in o ring vulcanization, we're one of the leading experts in providing the right sealing solution for you. To view our full range, visit our O-ring product page, with a wide selection and something to match every...

What is a Window Seal?

A window seal is something that nearly all of us will have seen in our homes or workplaces and is designed to help make your building more comfortable. Within our range of Sealing Specialist Products, we offer a selection of window seals designed for various...

See our latest catalogue for all the services we offer.

Gasket Sealants

Gasket SealantsFortunately, 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 and offer additional protection from fluctuating temperatures and corrosive chemicals. 

In some instances, some gaskets won’t require a sealant at all.  These situations occur when a new solid gasket is fitted to new products and flanges. 

In other cases, gaskets may be supplied with an adhesive backing (a sealant) to allow you to achieve the perfect placement with no slippage encountered. 

Those gaskets with adhesive backings don’t suffer extrusion or, indeed, leak into places they shouldn’t. 

Sealants, in the broader term, can also be used on aluminium applications; however, please be aware that it is extremely difficult to remove a sealant, and in worse case scenarios, it can leave a dented surface. 

Where gaskets and seals are helpful 

Different types of sealants are available to match and sit well with the various types of gaskets available.  Where you might find a sealant to be useful in gasket placement is where: 

  • A flange is very uneven 
  • It is required to fill a gap 
  • Leakage of the sealant is not an issue. 

You will commonly find gasket sealant used in the automotive industry alongside solid gaskets. 

However, we also often find that these sealants can be used to make cheaper gasket materials more robust as it helps increase adhesion and chemical and water resistance. 

Note:  When it comes to sealants, you most certainly don’t require a lot of gaskets sealant!  A small amount is more than sufficient to fill small indents.

Find Out More Here!

Types of sealant 

RTV sealants – a silicone gasket sealant that is processed at room temperature is a very effective sealer as well as a gasket itself.  Suitable as a high-temperature gasket sealant, silicone is ideal for extended periods making it suitable for long-term industrial applications, especially where a flexible yet permanent seal is required.  It is also worth considering Ultra RTV when using newer electronic-controlled vehicles as Ultra RTV is sensor safe. 

Non-setting compounds/anaerobic sealants – these sealants help to maintain a consistent seal by not setting hard.  Designed for applications where outside air is not available to help the drying process, this type of sealant is good for side of the road leak repairs, as well as filling small imperfections in mating surfaces. 

Liquid gaskets offer many benefits if they are used solely as a liquid. 

Shellac – perfect for cardboard gaskets or thin paper that operates in low pressure and low-temperature environments.   

High tack – this is a non-drying gasket that can sustain temperatures up to 500 degrees. 

Form a gasket sealer – within this category, you will find three types of gasket sealants: 

  1. Fast-drying, fast hardening. 
  2. Slow drying, non-hardening (this type works best on cork gaskets as clean up is much easier for re-sealing). 
  3. Brushable, slow drying non-hardening (you can lay this sealant on thick or thin to metal flanges, solid gaskets, and machined surfaces, and it will work effectively asap.  This type of sealant is often popular for hose connections due to the material being fuel and oil resistant). 

Copper gasket sealant – available in both brushable and aerosol forms, you will find copper gasket sealants fast-drying, dissipate heat, and promote even heat transfer between the two surfaces of the application.  It is also suitable to fill small imperfections offering a positive, high-quality seal. 

Benefits of gasket sealers 

  • Provides you with additional protection against leaks 
  • Offers stronger mating 
  • Improved sealability 
  • Strengthens gaskets 
  • Works in conjunction with gaskets in use sealing the area better 
  • Supports improved operations. 

Of course, there are various considerations to take into account when opting for the right sealant for your gasket, such as the temperature the sealant will be exposed to, type of dispenser, etc. 

The team at Specialist Sealing Products is on hand to help you with your gasket and seal needs and all related questions! 

Call us today on 01535 274 776; we’d be happy to help.

Find Out More Here!

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