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James Walker® Gaskets & Jointings > Cork-elastomer jointings



  Cork-elastomer jointings
Nebar® Grey: Premium Nitrile Electrical
 
DESCRIPTION
Premium quality, medium hardness jointing based on nitrile rubber, that meets ABB specification for transformers and switchgear. Previously designated Nebar® N80.

PRIME FEATURES
• Suitable for a wide range of duties.
• Used extensively in automotive, engineering and electrical industries.
• 110°C maximum operating temperature in liquids.
• Retains flexibility down to –25°C.
 
SPECIFICATIONS
Meets ABB specifications for transformers and switchgear. Complies with ASTM F104 line call out F225000M2.
 
PHYSICAL PROPERTIES (Tested to ASTM F104 procedures)
Hardness, IRHD 70 to 75 (ASTM D1415)
Tensile strength, MPa min 1.75 (ASTM F152)
Compressibility @ 2.8N/mm2, % 20 to 30 (ASTM F36)
Recovery, minimum % 80 (ASTM F36)
 
Fluid resistance, % volume swells in:
ASTM oil 1, 72h @ 100°C –2 to +10 (ASTM F146)
IRM903, 72h @ 100°C –2 to +15 (ASTM F146)
Fuel A, 22h @ ambient –2 to +10 (ASTM F146)
BS148 Transformer Oil, 14 days @ 90°C +2 (ASTM F146)
Dow Corning 561 Transformer Fluid –5 (Non-ASTM test)
 
HOW SUPPLIED
Precision cut gaskets to any shape, size and quantity. In sheets 1.2m x 0.9m.
Thicknesses 1.5mm, 3mm, 5mm, 6mm.