Gaskets and Sheet Jointings

Nebar® Orange

Economical, high quality cork-elastomer jointing based on a polychloroprene/nitrile/SBR blend.

Previously designated Nebar® N7E.

Recommended maximum system pressure is 0.5Mpa/5bar. May be used for higher pressures in consultation with James Walker Technical Support Team.

Prime features

  • Recommended for switchgear and transformers.
  • +110°C maximum operating temperature in liquids.
  • Retains flexibility down to -30°C.


Complies with ASTM F104 line call out F225000M2.

Fluid compatibilities
Suitable for use with air, water, alcohols, fuel and diesel oils, mineral lubricating oils, mineral hydraulic fluids, water/glycol, ASTM Oil No 1, IRM903 oil, ASTM Fuel A, BS 148 Transformer Oil.

Physical properties
(Tested to ASTM F104 procedures)
Hardness, IRHD:   60 to 70  (ASTM D1415)
Tensile strength, MPa minimum:  1.45   (ASTM F152B)
Compressibility @ 2.8N/mm², %:  20 to 35  (ASTM F36B)
Recovery, minimum %:  75  (ASTM F36B)
Fluid resistance, % volume change in:
ASTM Oil No 1, 72h @ 100°C:  -5 to +10  (ASTM F146)
IRM903, 72h @ 100°C:  0 to +30  (ASTM F146)
ASTM Fuel A, 22h @ ambient:  0 to +15  (ASTM F146)
BS 148 Transformer Oil, 14 days @ 90°C:  +5 to +15  (ASTM F146)

How supplied
Precision cut gaskets to any shape, size and quantity. In sheets 1.2m x 1.2m. Thicknesses 1.5mm, 2mm, 2.5mm, 3mm, 5mm, 6mm, 9.5mm.

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