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Gaskets and Sheet Jointings

Nebar® Red

Description
A high quality blend of cork and polychloroprene that withstands higher pressures and gasket loading than other Nebar® grades, particularly in the electrical industry.

Previously designated Nebar® HP.

Recommended maximum system pressure is 0.6Mpa/6bar. May be used for higher pressures in consultation with James Walker Technical Support Team.

Prime features

  • Developed for higher-pressure applications in switchgear and transformers.
  • High resistance to mineral oils.
  • +110°C maximum operating temperature in liquids.
  • Withstands higher gasket loading than other Nebar® grades.
  • Retains flexibility down to -30°C.
  • Easy to cut, handle and install.

Specifications
Complies with ASTM F104 line call out F224000M2.

Fluid compatibilities
Suitable for use with air, water, alcohols, fuel and diesel oils, mineral lubricating oils, mineral hydraulic fluids, water/glycol; plus ASTM Oil 1, IRM903 oil, ASTM Fuel A, and BS 148 Transformer Oil.

Physical properties
(Tested to ASTM F104 procedures)
Hardness, IRHD:  70 to 85  (ASTM D1415)
Tensile strength, MPa minimum:  2.35   (ASTM F152B)
Compressibility @ 2.8N/mm², %:  10 to 30  (ASTM F36B)
Recovery, minimum %:  75  (ASTM F36B)
Fluid resistance, % volume change in:
ASTM Oil No 1, 72h @ 100°C:  -5 to +5  (ASTM F146)
IRM903, 72h @ 100°C:  +10 to +30  (ASTM F146)
ASTM Fuel A, 22h @ ambient:  0 to +10  (ASTM F146)
BS 148 Transformer Oil, 14 days @ 90°C:  +10  (ASTM F146)

How supplied
Precision cut gaskets to any shape, size and quantity. In sheets 1.2m x 1.0m for 0.75mm thickness; sheets 1.2m x 1.2m for thicknesses 1.5mm, 2.5mm, 3mm, 6mm, 6.4mm, 9.5mm, 22mm.

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