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Dow Buna® SB 1502 Cold polymerized Emulsion Styrene Butadiene Rubber (E-SBR)

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Styrene Butadiene Rubber
Manufacturer Dow Chemical
Trade Name Buna®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Dow Buna® SB 1502 Cold polymerized Emulsion Styrene Butadiene Rubber (E-SBR).pdf
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Material Notes:
Buna® SB 1502 - Schkopau is manufactured by cold polymerization using mixed rosin acid / fatty acid soaps. A non-discoloring stabilizer is added during the production process. Buna® SB 1502 - Schkopau is a general purpose rubber. It can be processed in all sectors of the tire and rubber industry. It is mainly used for the production of light-colored rubber articles which can also be applied in the food industry. It is supplied in bales weighing 25 kg. Bales are wrapped in 50 micron PE film. At mixing temperatures above 115°C, the rubber can be processed with the packaging film. Information provided by Dow
Physical Properties Metric English Comments
Viscosity Measurement 2.5

@Temperature 160 °C
2.5

@Temperature 320 °F
[dNm]; ML, (0.5 RAD); ASTM D5289
3.0

@Temperature 160 °C
3.0

@Temperature 320 °F
[min]; ts1, (0.5 RAD); ASTM D5289
7.5

@Temperature 160 °C
7.5

@Temperature 320 °F
[min]; T50, (0.5 RAD); ASTM D5289
13

@Temperature 160 °C
13

@Temperature 320 °F
[min]; T90, (0.5 RAD); ASTM D5289
22

@Temperature 160 °C
22

@Temperature 320 °F
[dNm]; MH, (0.5 RAD); ASTM D5289
Mooney Viscosity 50

@Temperature 100 °C
50

@Temperature 212 °F
[MU]; ML 1+4, massed sample; ASTM D1646-99 (7.2.2)
Ash 0.10 %
0.10 %
ASTM D5667
Collected Volatile Condensable Material 0.20 %
0.20 %
ASTM D5668
Storage Temperature <= 30.0 °C
<= 86.0 °F
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 29.0 MPa
4210 psi
Die C (35 min / 145°C); ASTM D412
Tensile Strength, Yield 16.0 MPa

@Strain 300 %
2320 psi

@Strain 300 %
ASTM D412
Elongation at Break 490 %
490 %
ASTM D412
Chemical Properties Metric English Comments
Acid Value 6.3
6.3
% Organic Acid; ASTM D5775
Styrene Content 23.5 %
23.5 %
Bound Styrene; ASTM D5775
Processing Properties Metric English Comments
Shelf Life >= 12.0 Month
>= 12.0 Month
Descriptive Properties Value Comments
Accelerator (TBBS) wt% 1
ASTM 3185-1A
Carbon Black wt% 50
ASTM 3185-1A; IRB 7
Stearic Acid wt% 1
ASTM 3185-1A
Sulfur content, % 1.75
ASTM 3185-1A
Zinc Oxide wt% 3
ASTM 3185-1A
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