Cork-elastomer jointings

Gaskets & 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.

Full Product Range


Nebar® Blackonefifty_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.


Nebar® Brownonefifty_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.


Nebar® Greenonefifty_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.


Nebar® Redonefifty_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.


Nebar® Whiteonefifty_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.


Nebar® Yellowonefifty_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.


Nebar® Blueonefifty_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.


Nebar® Greyonefifty_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.


Nebar® Orangeonefifty_nebar_orange

Neoprene electrical grade

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


Nebar® Purpleonefifty_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.