Materials

Knowing and understanding your application is key to choosing the correct material. Choosing the best material for your application is a critical factor and prevents any potential problems later on, saving time and money.

Our engineers are trained and skilled with a wealth of experience in helping you choose the best material for your application.

We are always more than happy to help you and offer advice in designing and choosing the best suited material for your specific application.

Our Range of Materials

Our range of materials include plastics, polyurethane, AFLAS and many more.

  • PEEK – We create products using PEEK of high quality with chemical, wear, electrical and temperature resistance, dimensional stability and many processing capabilities.

    Applications for PEEK include components for cars, seals, industrial pumps, valves, connectors and hygienic surgical instruments and many more.

  • Polyacetal – Typical use of our polyacetal components include gear parts, bearings, conveyors, medical components and in many more applications.

    Polyacetal has great dimensional stability, fatigue and abrasion resistance with low wear and friction.

  • Polyurethane – Our polyurethane can be processed through either open pour casting or closed injection mouldings. We are able to produce quality products to our clients exact specification every time.

    Our typical polyurethane components include sheets, rods, wheels, rollers, buffers and much more.

  • Rubber/AFLAS – Our AFLAS is the perfect choice for use in the production of 0-rings, seals and gaskets and much more. It provides reassurance of excellent heat, chemical, steam and oil resistance. The extremely reliable properties of our AFLAS make it the perfect choice for use in many market sectors such as use in the oil and gas industry, drilling, food processing, nuclear power generators, electrical fields, chemical plants and many others.

  • PTFE – Our PTFE is a high performing material used successfully in many components for our customers thanks to its reliability in many applications. It is flame resistant with a temperature tolerance of up to 260°C with exceptional chemical resistance and low coefficient of friction.

    Our PTFE is particularly popular for the production of bearings, gears, seals and as a surface coating.

  • Polyamide – We use polyamides for applications in the engineering and industrial sectors such as the automotive industry and for housing of engines and various power tools thanks to its versatility, mechanical strength, resistance to abrasion, heat and chemicals and many more qualities.

  • UHMW – PE/PE-1000 – Our UHMW – PE/PE 1000 products are the perfect choice for applications including use in food processing environments, marine, automotive and many other industrial applications.

    Its many qualities include high level abrasion resistance, impact resistance, non-sticking, self-lubricating and exceptional machining and mechanical properties.

    Our UHMW – PE/PE 1000 can confidently be used in cryogenics and for various other uses in which it will be exposed to extremely low temperatures over long periods of time.

Things to Consider When Choosing Materials

Material Selection – it is a major factor for the right performance of a seal that it is made of the best suited material. There are many different requirements to consider.

A seal must have many qualities other than just being tight. The requirements vary from application to application.

When a sealing material is chosen many factors must be taken into consideration:

  • Main Applications – It is important to think carefully and be well informed about the main application of any material before it is installed to avoid costly problems further along. Always consider the chemical, mechanical, physical and manufacturing properties of the material.

    Call our team of specialists for advice and guidance and to discuss this further.

  • Physical Properties – Compatibility must be considered when choosing a material for any application. There are many properties that must be considered to ensure the best choice of material for any application. These include required density, temperature exposure, thermal and electrical conductivity, thermal expansion and corrosion resistance.

  • Chemical Resistance – Many components are exposed to chemicals on a regular basis. It is imperative that you can have full confidence that the material you choose to use for any application has optimal resistance to the chemicals it will be exposed to. This will prevent and accident, injury or hazard saving time and money through prevention of wear and tear and breakages of components over time.

  • Temperature Range – The material must keep its strength at elevated temperatures. To Preserve the sealing efficiency the material must maintain its softness and elasticity at low temperatures.  Our manufactured to be able to withstand the exact conditions of the application for which they function.

  • Rapid Gas Decompression – RGD Validation – Rapid gas decompression can pose an extremely hazardous, complex and costly problem and must be avoided. The risk is most common in oil and gas applications due to the extreme temperatures, presence of strong chemicals and high pressure. We test our materials to ensure excellent resistance to rapid gas decompression and explosive decompression.

  • Wear Resistance – For dynamic seals it is essential for the service life that the material has a good wear Resistance.

  • Mating Surface -For dynamic seals it is essential that material is gentle to the mating surface. The seal material must not be abrasive to the mating surface.

  • Extrusion resistance – At the combination of high temperatures and high pressure the material must be extrusion resistant. Dry running qualities:
    For dynamic applications where the fluid is a gas or a liquid with poor lubricating properties, the seal material must have good dry running qualities.

  • Ageing – For most seal materials ageing is a big problem. For applications where the seal is inactive for decades a decomposed seal material may be fatal when activated.

  • Friction – For most dynamic applications it is essential that the seal material has a low coefficient of friction. A seal with a high friction generates a lot of heat. If the system is not cooled the heat could reduce the service life of the seal dramatically. In all cases a seal with a high friction costs a lot of energy.

  • Stick-slip – For a smooth and chatter free movement it is important that the material do not have stickslip. If an accurate positioning is important a stickslip free material is a must.

  • Available Certificates –  We can provide you with materials certifications to help you comply with the most current directives and regulations.

CDK Seals Services: Supplying Seals - Picture shows a variety of different seals in red, black & blue

Accreditations

Whatever the industry, our sealing solutions are high quality, durable and work to the required accreditations for the relevant industry.

These accreditations include: –

  • ISO 9001
  • Food Dairy Association (FDA)
  • EC1935:2004
  • EU10/2011 – Migration Limits For Plastic Parts
Reasons to use CDK - ISO 9001 Accreditation logo

Contact Us

Please contact us to discuss your sealing requirements.

Our experienced team is waiting to help!

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