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CR compound test value of main products

Description Asahi Thermal Asahi #15 Asahi #15HS Asahi #50 Asahi #50HG Asahi #52
Test items
Mooney scorch Mooney viscosity
@125 degrees ML1+4'
76.0 77.4 102.1 89.1 - -
Mooney scorch
@125 degrees t5
5.4 5.7 5.0 5.5 4.8 3.9
Vulcanized rubber properties Hardness (JIS) 63 66 72 70 73 74
100% modulus (MPa) 2.7 3.0 5.4 4.3 5.7 6.4
150% modulus (MPa) 7.4 8.1 14.5 12.9 16.3 17.9
Tensile strength (MPa) 19.4 19.4 20.4 20.8 21.0 21.8
Ultimate elongation (%) 322 342 270 285 248 238
Rebound resilience (%) 64.1 64.9 61.9 62.2 60.6 58.2
Compression set 17.3 21.2 21.4 23.2 16.5 17.3
Vibration isolating properties Tangent delta 0.110 0.102 0.112 0.114 0.116 0.124
Movement magnification 1.896 1.799 2.110 1.971 2.249 2.482
Gs
(static modulus of elasticity)
12.6 13.9 18.4 16.9 19.3 19.2
Description Asahi #55 Asahi #60U Asahi #60HN Asahi F-200GS Asahi #70
Test items
Mooney scorch Mooney viscosity
@125 degrees ML1+4'
- - - - -
Mooney scorch
@125 degrees t5
4.2 3.8 - - -
Vulcanized rubber properties Hardness (JIS) 72 77 76 80 77
100% modulus (MPa) 6.0 7.6 8.2 9.9 7.1
150% modulus (MPa) 17.3 20.5 21.0 - 21.8
Tensile strength (MPa) 21.0 22.7 22.7 22.8 22.6
Ultimate elongation (%) 232 222 210 186 206
Rebound resilience (%) 60.2 57.6 55.1 52.7 51.5
Compression set 23.2 23.8 16.5 16.7 17.0
Vibration isolating properties Tangent delta 0.118 0.127 0.146 0.151 0.170
Movement magnification 1.673 2.478 2.994 2.914 3.135
Gs
(static modulus of elasticity)
24.6 20.8 21.8 26.9 21.8

CR compound list

Non-pro chemicals phr
Denkerchloroprene M-40 100
Carbon black 40
Stearic acid 1.0
Antidegradant nonflex RD 1.0
Zinc oxide 5.0
Magnesium oxide M-150 4.0
Pro chemicals phr
Accelerator NA-22 0.5