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Everything You Need to Know about Coruba’s Rubber Gaskets

Just like the human body, machinery has joints that fit neatly together. For any spaces that need to be sealed and maintained for user safety, you can rely on rubber gaskets.

What are Rubber Gaskets?

Rubber gaskets serve as a mechanical stopper, filling in spaces between two or more contact surfaces to prevent leaking. Failure to use a suitable rubber gasket can result in damage to the machine, accidents and even disruption to production lines.

These are just some of the features you should look out for:

  • Excellent durability and flexibility
  • High resistance to gas and vapour
  • Water and chemical repellent
  • Vibration and shock absorption
  • Stability in low temperature

Different Rubber Polymers

Available in a variety of polymers to suit specific requirements, we strongly suggest that you choose the appropriate rubber polymer -  to make sure it is compatible with the application:

Butyl Rubber

Butyl rubber resists mild esters, acid and alkalis. It can also withstand temperatures ranging from 40°C up to 150°C. Although it has limited resistance to oil and fuel, it is very good at handling gas and ozone – ideal for protecting and sealing certain equipment that involves chemical weapons and gasoline additives.

Ethylene Propylene Diene Rubber (EPDM)

For seals that are highly resistant to steam, ozone and strong acids, opt for EPDM gaskets. EPDM gaskets from Coruba can handle temperatures ranging between -50°C and 150°C - slightly greater resistance than a Butyl rubber gasket. However, they are not suitable for aromatic hydrocarbons and solvent exposure.

Natural Rubber

Natural rubber gaskets are commonly used for applications involving solvents, oil and oxygen exposure. Compared to the rest of the rubber gaskets, they have a lower temperature resistance of only -60°C to 80°C; although they do have very good recovery properties. They can also resist most inorganic salts, mild acids and alkalis.

Neoprene Rubber

For areas that are regularly exposed to oil, petroleum based fuels and hydrocarbons, neoprene gaskets are the best option:

  • Good thermal stability
  • Waterproof
  • Corrosion, chemical and weathering resistant

Styrene Butadiene Rubber (SBR)

A lower cost alternative to natural rubber, styrene butadiene rubber has the same temperature capacity as EPDM - ranging -50°C to 150°C. Unlike EPDM, SBR should not be used with applications involving strong acids, oil, grease and hydrocarbons.

Silicone

With excellent temperature resisting properties ranging from 60°C to 200°C, silicone gaskets are suitable to be used in large industries that rely on heavy-duty machinery and power plants. Assuring good ozone and sun exposure resistance, silicone is the polymer of choice in many extreme environments.

As a leading UK supplier, Coruba caters to all your rubber product requirements. From butyl to silicone rubber, we offer rubber gaskets in different polymers to suit a diverse range of environments. Phone us on 01702 811 628 to learn more about our products.



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