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O Ring Colour Identification

O rings come in various colours, and it's important to understand what these colours indicate as the o rings you choose will affect your overall process application.  Ultimately, different o ring colours are used to help differentiate between different materials. ...

Spiral Wound Gasket Compressibility and Pressure Ratings

In order to form a reliable seal, spiral wound gaskets do require a certain degree of pressure.   The applied pressure allows the gasket to be compressed tightly between the mating surfaces preventing any leaks from occurring.  Factors such as operating temperature...

Elastomeric Compounds

What is elastomer?  Elastomeric compounds are rubber seals produced using natural rubbers or manufactured by the chemicals industry.  Elastomeric sealing compounds consist of between 50-60% rubber; the remainder of the compound consists of fillers,...

Is there such a thing as the right flange gasket?

We cannot stress enough how important gaskets and seals can be. Gaskets are vital for an application's reliability and integrity, and trust us when we say, choosing the right gasket now can help you avoid costly issues in the future.  Taking a closer look at pipe...

Plastic gaskets, the best alternative to metal

Plastic gaskets and seals are not that uncommon.  In fact, they’re used in many devices due to the longevity and functionality they offer.  Helping to prevent leaks and maintain temperature control, plastic gaskets help equipment and appliances operate to the best of...

Protecting your seals

Dust gets everywhere.  We see it across the surfaces of our homes and even in our workplaces, especially when the light shines through to show it in its full glory!  However, dust that seeps and builds up within engineering equipment can be disastrous.  Causing damage...

Importance of durometer testing

Durometer or shore durometer is a way for industry professionals to measure how hard such things as plastic, rubber, and non-metallic materials genuinely are.  Its focus is to measure on a Shore A or Shore D scale, looking at how robust material is when examining its...

Metal Detectable O Rings

Metal detectable o rings became a necessary must when it was identified that some chemicals, exposure to extreme temperatures, and continuous vibrations could cause failings in standard o rings.  Failings that not only mean a breaking of the seal, but there is also an...

Tips for best o ring maintenance

If o rings are not maintained, leaks can occur, and water and other fluids can enter the appliance or application, and even product in the mix!  If this happens, damage can occur to internal parts and mechanisms, causing deployment failings, potential false readings,...

What you need to know about O Ring Lubricants

Silicone grease and lubricants aren’t just a nice to have for o rings, but they can quite often be a must-have.  However, with so many greases and lubricants to choose from, it can often be a minefield choosing the best ones and the right ones for your o ring and...

Gasket manufacturing process explained

The process of manufacturing a gasketSpecialist Sealing Products have been providing high-quality gaskets to customers throughout the UK for many years. We pride ourselves in the range of gaskets we have available, suitable for a variety of applications across a range of industries. 

Rubber gaskets are indeed the perfect solution to, in their simplest form, fill the gap between two parts. Helping to provide a tight seal that prevents leaks, helps to reduce noise, or can act as a support mount. 

Rubber gaskets are so versatile that they can be used in any business operating in any sector needed for any application. It is primarily used in oil and gas, food processing, pharmaceutical, water, and petrochemical industries. 

Manufacturing rubber gaskets – The Process 

Cutting and punching play a big part in the manufacturing process of gaskets. Producing a range of different products in a range of volumes, all dependant on specific requirements. 

Ideally, you need to work with a manufacturing process that provides the best solution for you, and one that is ultimately fit for purpose. 

Most common production techniques 

Punching 

Gasket punching is one of the most traditional methods in the manufacturing process. Gasket punching involves a bent steel strip that can be moulded into the desired shape and then fed through a sheet of the gasket, followed by a cutting board. Gasket punching involves a sharp blade being pressed into the steel to pierce through the sheet material, cleanly and with ease. The shape inside the cutter is then the finished gasket. 

Originally, gasket punching was widely used in the shoe industry; however, due to its many benefits, the process of punching is used to manufacturer a much wider range of gaskets for a variety of industries. 

Punching is the best manufacturing method if you’re looking for consistently sized gaskets that require large volumes to be produced. 

Cutting 

Gasket cutting can often be preferred to gasket punching because a number of different product characteristics come into play that cutting can work with effectively and efficiently. 

Types of cutting involve: 

Kiss cutting – which is used to support the handling of smaller punched parts. 

Water jetting – which involves a high pressure of jet water being blown through a sheet of material to cut it. This particular manufacturing method allows hard or soft, cellular, or solid materials to be cut quickly and in a wide range of shapes. All done without deformation that is often found on other punching processes. This process is also good if you’re looking for a quick run. (Note: materials that absorb water are not suitable for this process). 

Laser cutting – similar to water jetting, you’re simply just using a laser instead. The benefits are also similar, but with lasers, you can experience a flammability problem. 

Hand cutting – ideal for much larger and more bespoke gaskets. A traditional manufacturing process but still extremely useful. Hand marking out shapes and then using knives and saddle punches to create more bespoke gaskets. 

Strip cutting – which uses a rotary knife to convert the strip material into the end product. Using a rotating knife, this process cuts long sheets of material into strips using a circular rotation. The distance between each blade is then set, determined by what is being produced. 

Finishing touches 

It’s important to ensure that the products manufactured are also trimmed, finished, and packed to a very high standard. 

The product still is not 100% complete as soon as it comes off the production line, it needs to be finished, by sealing experts. 

SSP provides a range of gaskets to suit your individual needs. Give us a call to ask one of our sealing experts about the right gasket for you. 

Gasket manufacturers SSP have the flexibility, as well as the tools, machinery, and processes to offer customers a wide range of punched and cut gaskets. 

Working with a range of volumes to support several industries, we’re proud of our robust manufacturing processes. 

Read the next article: Restoring your damaged rubber seals 

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