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

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Dow Buna® SB 1502 Cold polymerized Emulsion Styrene Butadiene Rubber (E-SBR)
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Styrene Butadiene Rubber
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
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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

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

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	29.0 MPa	4210 psi	Die C (35 min / 145°C); ASTM D412
Tensile Stress at Strain	16.0 MPa @Strain 300 %	2320 psi @Strain 300 %	ASTM D412
Elongation at Break	490 %	490 %	ASTM D412

Processing Properties	Metric	English	Comments
Shelf Life	>= 12.0 Month	>= 12.0 Month

Descriptive Properties
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

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PDOW1018 / 30222

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