Gaskets and Sheet Jointings
Premium quality cork-elastomer jointing, based predominantly on polychoroprene. Well proven over many years in heavy electrical plant.
Previously designated Nebar® N6/25.
Recommended maximum system pressure is 0.5Mpa/5bar. May be used for higher pressures in consultation with James Walker Technical Support Team.
- Top grade product for switchgear and transformers.
- Developed for prolonged contact with mineral oils.
- +105°C maximum operating temperature in liquids.
- Retains flexibility down to -30°C.
Complies with ASTM F104 line call out F225000M2.
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.
(Tested to ASTM F104 procedures)
Hardness, IRHD: 65 to 85 (ASTM D1415)
Tensile strength, MPa minimum: 1.75 (ASTM F152B)
Compressibility @ 2.8N/mm², %: 20 to 30 (ASTM F36B)
Recovery, minimum %: 80 (ASTM F36B)
Fluid resistance, % volume change in:
ASTM Oil No 1, 72h @ 100°C : -5 to +10 (ASTM F146)
IRM903, 72h @ 100°C: +10 to +30 (ASTM F146)
ASTM Fuel A, 22h @ ambient: 0 to +15 (ASTM F146)
BS 148 Transformer Oil, 14 days @ 90°C: +10 (ASTM F146)
Precision cut gaskets to any shape, size and quantity. In sheets 1.2m x 1.2m. Thicknesses 0.75mm, 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 6.4mm, 8mm, 9.5mm.