Nebar is our range of rubber‑bonded cork gasket materials designed for sealing flat flanges against fluid leakage.
High grade, general purpose
General purpose, high quality cork-elastomer jointing. Below 3 mm thickness it comprises predominantly nitrile bonded cork; at 3 mm and above the cork is bonded with a polychloroprene / nitrile blend.
Recommended maximum system pressure is 0.5 MPa/5 bar. Consult us for use with higher pressures.
Prime features
Specifications
Fluid compatibilities
Physical properties
<3mm thickness
≥3mm thickness
How supplied
Neoprene electrical grade
Economical, high quality cork-elastomer jointing based on a polychloroprene/nitrile/SBR blend.
Recommended maximum system pressure is 0.5 MPa/5 bar. Consult us for use with higher pressures.
Prime features
Specifications
Fluid compatibilities
Physical properties
How supplied
Premium neoprene electrical grade
Premium quality cork-elastomer jointing, based predominantly on polychloroprene. Well proven over many years in heavy electrical plant.
Recommended maximum system pressure is 0.5 MPa/5 bar. Consult us first for use with higher pressures.
Prime features
Specifications
Fluid compatibilities
Physical properties
How supplied
Nitrile electrical grade
High quality, medium-to-hard grade of cork-elastomer jointing based on nitrile elastomer.
This material is able to withstand a higher degree of compression than other grades, which enables it efficiently to seal transformer lids (and other equipment) where flanges suffer a degree of non-parallelism. Moreover, its ability to withstand vapour phase drying removes the need for test gaskets.
Recommended maximum system pressure is 0.5 MPa/5 bar. Consult us first for use with higher pressures.
Prime features
Specifications
Fluid compatibilities
Physical properties
How supplied
For higher pressure duties
A high quality blend of cork and polychloroprene that withstands higher pressures and gasket loading than other Nebar grades, particularly in the electrical industry.
Recommended maximum system pressure is 0.6 MPa/6 bar. Consult us first for use with higher pressures.
Prime features
Specifications
Fluid compatibilities
Physical properties
How supplied
Premium nitrile electrical grade
Premium quality, medium hardness cork-elastomer jointing, based on nitrile rubber, that meets ABB specification for transformers and switchgear.
Recommended maximum system pressure is 0. 5Mpa/5 bar. Consult us first for use with higher pressures.
Prime features
Specifications
Fluid compatibilities
Physical properties
How supplied
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