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Dow SE SLR-4630 Solution polymerized Styrene Butadiene Rubber (S-SBR)

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer Dow Chemical
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Dow SE SLR-4630 Solution polymerized Styrene Butadiene Rubber (S-SBR).pdf
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Material Notes:
SE SLR-4630 is manufactured by anionic solution polymerization using lithium initiator and is extended with 37.5 parts of TDAE oil in relation to solid rubber. It is a product with medium styrene and high vinyl content. The product is partially Sn-coupled and non-staining stabilized. SE SLR-4630 is used in the tire industry for the manufacture of winter and all season applications. It can also be used for the manufacture of high-quality technical rubber articles. It is supplied in bales weighing 25 kg. Bales are wrapped in 50 micron PE film. At mixing temperatures above 110°C, the rubber can be processed with the packaging film. Information provided by Dow
Physical Properties Metric English Comments
Viscosity Measurement 2.8

@Temperature 160 °C
2.8

@Temperature 320 °F
[dNm]; ML, (0.5 RAD); ASTM D5289
4.4

@Temperature 160 °C
4.4

@Temperature 320 °F
[min]; ts1, (0.5 RAD); ASTM D5289
10.9

@Temperature 160 °C
10.9

@Temperature 320 °F
[min]; T50, (0.5 RAD); ASTM D5289
14.3

@Temperature 160 °C
14.3

@Temperature 320 °F
[dNm]; MH, (0.5 RAD); ASTM D5289
17.9

@Temperature 160 °C
17.9

@Temperature 320 °F
[min]; T90, (0.5 RAD); ASTM D5289
Mooney Viscosity 55

@Temperature 100 °C
55

@Temperature 212 °F
[MU]; ML 1+4, unmassed sample; ASTM D1646
Vinyl Acetate Content 63 %
63 %
FTIR, internal method
Collected Volatile Condensable Material 0.32 %
0.32 %
ASTM D5668
Storage Temperature <= 30.0 °C
<= 86.0 °F
Mechanical Properties Metric English Comments
Hardness, Shore A 56.7

@Thickness 12.5 mm
56.7

@Thickness 0.492 in
(25 min / 160°C); ASTM D2240
Tensile Strength, Ultimate 20.0 MPa
2900 psi
Die C (35 min / 145°C); ASTM D412
Tensile Strength, Yield 10.5 MPa

@Strain 300 %
1520 psi

@Strain 300 %
ASTM D412
Elongation at Break 540 %
540 %
ASTM D412
Rebound 19 %

@Thickness 12.5 mm
19 %

@Thickness 0.492 in
Schob pendulum, (25 min / 160°C); ISO 4662
Thermal Properties Metric English Comments
Vicat Softening Point 92.2 °C
198 °F
Glass Transition Temp, Tg -28.9 °C
-20.0 °F
HR 10 K/min; half height; DSC
Chemical Properties Metric English Comments
Styrene Content 25 %
25 %
FTIR, internal method
Processing Properties Metric English Comments
Shelf Life >= 12.0 Month
>= 12.0 Month
Descriptive Properties Value Comments
Accelerator (TBBS) wt% 1.38
ASTM 3185-2B
Carbon Black wt% 68.75
ASTM 3185-2B; IRB 7
Stearic Acid wt% 1
ASTM 3185-2B
Sulfur content, % 1.75
ASTM 3185-2B
Total Extractables % 27.4
ASTM D5774
Zinc Oxide wt% 3
ASTM 3185-2B
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