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NBR compound test value of main products

Description Asahi #15HS Asahi #35 Asahi #50 Asahi #50U Asahi #50HG Asahi #55 Asahi #60U
Test items
Mooney scorch Mooney viscosity
@125 degrees ML1+4'
31.6 29.0 29.9 30.0 33.0 31.2 34.4
Mooney scorch
@125 degrees t5
11.5 11.4 11.5 11.2 10.9 11.4 10.4
Vulcanized rubber properties
*1
Hardness (JIS) 60 56 58 58 62 60 64
100% modulus (MPa) 2.0 2.2 2.5 2.4 3.1 2.8 3.8
200% modulus (MPa) 6.4 5.1 5.9 6.0 7.8 7.3 9.6
Tensile strength (MPa) 13.1 14.1 13.8 15.5 14.9 15.3 18.5
Ultimate elongation (%) 415 454 420 423 375 387 376
Rebound resilience (%) 49.9 50.1 50.0 49.4 48.9 48.0 46.0
Compression set 11.1 12.2 11.7 11.9 11.2 11.9 12.5
Heat aging
*2
Hardness (JIS) 2 5 5 5 4 4 4
Tensile strength (MPa) 4 -1 8 4 9 8 4
Ultimate elongation (%) -15 -17 -10 -15 -9 -11 -15
Oil-proof ASTM #1 oil Hardness (JIS) 2 3 2 2 3 3 2
Tensile strength (MPa) 12 12 13 13 16 16 15
Ultimate elongation (%) -10 -10 -9 -7 -5 5 -4
Volume change -6 -7 -7 -4 -7 -5 -5
Oil-proof IRM903 Hardness (JIS) -5 -5 -4 -5 -4 -4 -5
Tensile strength (MPa) -3 -7 -1 -4 1 -4 -2
Ultimate elongation (%) -11 -9 -7 -9 -6 -10 -8
Volume change 12.4 14.0 13.7 13.9 12.4 14.5 15.6
Description Asahi #60HN Asahi F-200GS Asahi #70L Asahi #70 Asahi #80
Test items
Mooney scorch Mooney viscosity
@125 degrees ML1+4'
38.3 45.0 38.2 37.5 43.5
Mooney scorch
@125 degrees t5
10.0 9.7 10.1 9.8 9.1
Vulcanized rubber properties
*1
Hardness (JIS) 66 70 62 64 66
100% modulus (MPa) 4.6 5.9 2.4 3.2 2.9
200% modulus (MPa) 11.1 13.4 6.5 9.6 9.1
Tensile strength (MPa) 19.6 20.9 23.8 23.3 27.6
Ultimate elongation (%) 374 340 456 398 426
Rebound resilience (%) 41.5 40.6 36.5 39.2 33.6
Compression set 12.4 12.3 14.7 12.8 13.9
Heat aging
*2
Hardness (JIS) 5 4 5 5 3
Tensile strength (MPa) -4 0 -5 -6 -6
Ultimate elongation (%) -20 -17 -19 -21 -20
Oil-proof ASTM #1 oil Hardness (JIS) 2 2 0 1 1
Tensile strength (MPa) 7 6 -2 0 -2
Ultimate elongation (%) -8 -9 -16 -14 -14
Volume change -5 -6 -7 -7 -9
Oil-proof IRM903 Hardness (JIS) -5 -6 -8 -7 -10
Tensile strength (MPa) -3 -5 -5 -10 -11
Ultimate elongation (%) -6 -10 -8 -13 -10
Volume change 10.8 12.8 11.2 11.7 11.6
  1. *1,2 Test conditions: 100 degrees×70hr.

NBR compound list

Non-pro chemicals phr
NBR 100
Carbon black 50
DOP 10
Stearic acid 1.0
Antidegradant 810NA 1.0
Zinc oxide 5.0
Pro chemicals phr
Accelerator TT 2.0
Accelerator CZ 1.0
Sulfur 0.5