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James Walker® Gaskets & Jointings > Cork-elastomer jointings



  Cork-elastomer jointings
Nebar® Yellow: Premium Nitrile
 
DESCRIPTION
Premium quality, nitrile based corkelastomer jointing developed to meet the requirements of Ministry of Defence Specifications BS2F66 and DEF22. Previously designated Nebar® A/CT.

PRIME FEATURES
• High compressibility at low bolt loadings.
• Resists a wide range of fluid media.
• 110°C maximum operating temperature in liquids.
• Retains flexibility down to –20°C.
• All Nebar products are easy to cut, handle and install.
 
SPECIFICATIONS
Tested to BS2F66 and conforms to DEF22. Complies with Rover GC2403.
 
PHYSICAL PROPERTIES
(Tested to ASTM F104 procedures)
Hardness, IRHD 60 to 75 (ASTM D1415)
Tensile strength, MPa minimum 1.72 (ASTM F152)
Compressibility @ 2.8N/mm2, % 20 to 30 (ASTM F36)
Recovery, minimum % 75 (ASTM F36)
 
Fluid resistance, % volume swell in:
ASTM oil 1, 72h @ 100°C –5 to +15 (ASTM F146)
IRM903, 72h @ 100°C +5 to +20 (ASTM F146)
Fuel A, 22h @ ambient +5 to +15 (ASTM F146)
BS148 Transformer Oil, 14 days @ 90°C +1.0 (ASTM F146)
 
HOW SUPPLIED
Precision cut gaskets to any shape, size and quantity. In sheets 1.2m x 1.0m with a split surface finish. Thicknesses 0.75mm, 1mm, 1.5mm, 3mm.