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Rubber seals

јун . 20, 2024 17:25 Back to list

Rubber seals


Rubber seals

 
rubber

Rubber is an elastic material that is resistant to corrosion!

 

Thanks to its elasticity, rubber is a commonly used sealing material. Rubber seals are suitable for a wide range of applications.

Versatile features of rubber include flexibility, elasticity, strength and friction. Rubber seals also prevents vibration and are airtight and watertight.

Other rubber seals’ features:

  • Rubber seals have excellent durability
  • Rubber seals works in large temperature variations
  • Insulates electricity

Electric conductivity, fire resistance and other features of rubber can also be improved if necessary. In addition, the usability of rubber in sealing solutions is enhanced by its adhesion to metals, plastics and textiles.

Our most widely used rubber types are:

  • EPDM
  • CR
  • NBR

We also offer fireproof rubber types that comply with the latest fire standards.

EPDM rubber, i.e. ethylene-propylene rubber

Applications of synthetic EPDM rubber include seals, profile strips and cable coatings.

EPDM is the most common raw material used in sealing solutions, largely due to its:

  • Long lifespan
  • Excellent weather resistance
  • High thermal resistance and resistance to chemical agents

In addition, EPDM rubber retains its flexibility at low temperatures and works at high temperatures, as well as in hot water or steam.

EPDM is highly resistant to water-based chemicals and solvents. It is available in a wide hardness scale: 25-90 ShA.

EPDM rubber is also available in types that comply with the EN 45545 standard for rail applications, as well as with the EN 681-1 standard for municipal engineering.

Fire classified EPDM rubber seals

FinnProfiles offers fireproof EPDM rubber that meets the following standards:

CR rubber, i.e. chloroprene rubber

Also known as Neoprene, chloroprene rubber is a synthetic rubber that has been developed for conditions that require chemical resistance in particular.

Chloroprene is a highly durable material:

  • It is strong and flexible
  • And it has high ozone and weather resistance

Applications of CR rubber include:

  • Seals
  • Bellows
  • V-belts
  • Conveyor belts
  • Vibration absorbers

CR is highly resistant to animal and vegetable based oils.

NBR – Nitrile rubber

NBR rubber has been developed for conditions requiring high oil resistance. In addition to oil, NBR is highly resistant to liquid fuels and most solvents.

Because of its high oil resistance, NBR rubber is used, for example, in seals and protective beams used in, for example, municipal and automotive applications.

SBR rubbers, i.e. styrene-butadiene rubber

SBR rubber, i.e. styrene-butadiene rubber, is a general-purpose rubber type that is used when the product does not require special features, such as oil resistance.

SBR rubber was originally developed to replace natural rubber. Its benefits include:

  • High viscosity
  • Wear resistance
  • Frost resistance

Indeed, SBR rubber is widely used in typical rubber applications, such as car tires, rubber footwear, conveyor belts, hoses, and profile strips.

IR rubber, i.e. isoprene rubber

IR rubber, i.e. isoprene rubber, is a synthetic substitute for natural rubber, which is suitable as such for various purposes. It is most commonly used as a mixture with other rubbers.

Mixing SBR rubber with IR rubber improves the material:

  • Tensile strength
  • Tear strength
  • Flexibility
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