A high quality blend of cork and polychloroprene that withstands high pressures and high bolt loads, particularly in the electrical industry. Previously designated Nebar® HP. Prime features Developed for high pressure applications in switchgear and transformers. High resistance to mineral oils. +110°C maximum operating temperature in liquids. Withstands higher bolt loadings than other Nebar® grades. Retains flexibility down to -35°C. Easy to cut, handle and install. Specifications Complies with DTD 900/4911 (DTD specifications declared obsolescent); AFS 721; and 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)