SBR synthetic rubber

Our comapny located in China mainland.
SBR1502, with high quality and competitive price.
SBR 1502 Specification :

Testing Item
Index
Test Method
Superior Grade
First Grade
Qualified
Volatile matter(%)≤
0.60
0.75
0.90
GB/T6737
Ash content
≤0.50
GB/T4498A
Organic acid(%)
4.50~6.75
GB/T8657A
Soap content(%)
≤0.5
Combinated Styrene content(%)
22.5~24.5
GB/T8658
Raw rubber mooney viscosity
ML(1+4)100°c
45~55
44~56
GB/T1232.1
Compounded rubber mooney viscosity
ML(1+4)100°c≤
93
300% Stretching Stress
(145°c)/MPa
25min
15.2~19.1
14.7~19.6
GB/T8656A
35min
20.6±2.0
20.6±2.5
50min
21.5±2.0
21.5±2.5
Tensile strength
(145°c, 35min)/MPa
≥25.5
≥25.5
≥24.5
Elongationg at break
(145°c, 35min)/%
≥340
≥330