Cork-elastomer jointings
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Gaskets and Sheet Jointings

Cork-elastomer jointings

Nebar® cork-elastomer jointings are the obvious choice for numerous flange sealing duties with transformer oils, lubricating oils, fuels and water in the electrical, automotive, marine, aerospace and general machinery sectors.

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Nebar® Black

High-performance electrical grade

  • Cork and nitrile/polychloroprene elastomers.
  • Developed for hydrogen cooling and duties with SF6 gas.
  • Resistivity 1010 Ω.cm at 100Vdc.
  • Operates at up to 110°C in liquids.
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Nebar® Brown

High grade, general purpose

  • High quality general purpose grade.
  • Used in automotive, engineering and electrical industries.
  • Operates at up to 110°C in liquids.
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Nebar® Green

Sponge grade for low bolt loads

  • Blend of cork and polychloroprene.
  • Soft grade with closed-cell construction.
  • For fragile flanges with low bolt loads.
  • Exceptional oil resistance.
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Nebar® Red

For higher pressure duties

  • High quality blend of cork and polychloroprene.
  • For switchgear and transformer applications.
  • High resistance to mineral oils.
  • Operates at up to 110°C in liquids.
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Nebar® White

Premium neoprene electrical grade

  • Premium blend of cork and polychloroprene.
  • Top grade product for transformers and switchgear.
  • Well proven in prolonged contact with mineral oils.
  • Operates at up to 105°C in liquids.
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Nebar® Yellow

Premium nitrile grade

  • Premium quality blend of cork and nitrile rubber.
  • Originally developed for Ministry of Defence requirements.
  • Resists a wide range of fluid media.
  • Operates at up to 110°C in liquids.
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Nebar® Blue

For unleaded services

  • Premium quality blend of cork and nitrile.
  • Recommended for use with unleaded fuels.
  • Used for automotive, engineering and electrical duties.
  • Operates at up to 115°C.
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Nebar® Grey

Premium nitrile electrical grade

  • Premium quality blend of cork and nitrile.
  • Meets ABB specification for switchgear and transformers.
  • Used in automotive, engineering and electrical industries.
  • Operates at up to 110°C in liquids.
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Nebar® Orange

Neoprene electrical grade

  • Economical, high quality product.
  • Recommended for switchgear and transformers.
  • Operates at up to 110°C in liquids.
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Nebar® Purple

Nitrile electrical grade

  • High quality blend of cork and nitrile rubber.
  • Robust grade for heavy electrical duties, especially with non-parallel flanges.
  • Withstands vapour phase dryying.
  • Operates at up to 110°C with excursions to 120°C.
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