Overview of materials for Styrene-Butadiene Copolymer, SBC

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Overview of materials for Styrene-Butadiene Copolymer, SBC
Categories:	Polymer; Thermoplastic; Styrene-Butadiene; Styrene-Butadiene Copolymer, SBC
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Styrene-Butadiene Copolymer, SBC". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Metric	English	Comments

Density	0.848 - 7.98 g/cc	0.0306 - 0.288 lb/in³	Average value: 1.17 g/cc Grade Count:88
Water Absorption	0.0700 - 0.0900 %	0.0700 - 0.0900 %	Average value: 0.0809 % Grade Count:11
Water Absorption at Saturation	0.0700 %	0.0700 %	Average value: 0.0700 % Grade Count:20
pH	7.00 - 11.3	7.00 - 11.3	Average value: 9.86 Grade Count:4
Water Vapor Transmission	54.3 - 93.1 g/m²/day	3.50 - 6.00 g/100 in²/day	Average value: 77.6 g/m²/day Grade Count:3
Oxygen Transmission Rate	27.2 - 6520 cc/m²/day	1.75 - 420 cc/100 in²/day	Average value: 2820 cc/m²/day Grade Count:5
Viscosity	150 - 2000 cP	150 - 2000 cP	Average value: 713 cP Grade Count:4
Linear Mold Shrinkage	0.00200 - 0.0370 cm/cm	0.00200 - 0.0370 in/in	Average value: 0.00977 cm/cm Grade Count:31
Melt Flow	1.00 - 76.0 g/10 min	1.00 - 76.0 g/10 min	Average value: 12.4 g/10 min Grade Count:66
Surface Tension	31.0 - 40.0 dynes/cm	31.0 - 40.0 dynes/cm	Average value: 35.5 dynes/cm Grade Count:3

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	9.00 - 97.0	9.00 - 97.0	Average value: 63.6 Grade Count:33
Hardness, Shore D	34.0 - 91.0	34.0 - 91.0	Average value: 63.9 Grade Count:48
Tensile Strength, Ultimate	1.61 - 27.6 MPa	234 - 4000 psi	Average value: 11.6 MPa Grade Count:39
Film Tensile Strength at Yield, MD	20.0 - 34.5 MPa	2900 - 5000 psi	Average value: 27.4 MPa Grade Count:4
Film Tensile Strength at Yield, TD	16.0 - 70.0 MPa	2320 - 10200 psi	Average value: 30.8 MPa Grade Count:4
Tensile Strength, Yield	1.03 - 45.5 MPa	149 - 6600 psi	Average value: 23.1 MPa Grade Count:59
Film Elongation at Break, MD	65.0 - 260 %	65.0 - 260 %	Average value: 163 % Grade Count:5
Film Elongation at Break, TD	80.0 - 260 %	80.0 - 260 %	Average value: 179 % Grade Count:5
Elongation at Break	2.50 - 1300 %	2.50 - 1300 %	Average value: 338 % Grade Count:79
Elongation at Yield	1.50 - 5.00 %	1.50 - 5.00 %	Average value: 2.51 % Grade Count:25
Modulus of Elasticity	0.0689 - 2.90 GPa	10.0 - 421 ksi	Average value: 1.35 GPa Grade Count:32
Flexural Yield Strength	4.00 - 75.0 MPa	580 - 10900 psi	Average value: 33.7 MPa Grade Count:53
Flexural Modulus	0.140 - 3.00 GPa	20.3 - 435 ksi	Average value: 1.42 GPa Grade Count:54
Resilience	33.0 - 43.0	33.0 - 43.0	Average value: 38.6 Grade Count:9
Secant Modulus, MD	0.696 - 1.27 GPa	101 - 185 ksi	Average value: 0.956 GPa Grade Count:4
Secant Modulus, TD	0.469 - 1.60 GPa	68.0 - 232 ksi	Average value: 0.884 GPa Grade Count:4
Izod Impact, Notched	0.198 J/cm - NB	0.371 ft-lb/in - NB	Average value: 0.662 J/cm Grade Count:26
Izod Impact, Notched (ISO)	2.30 kJ/m² - NB	1.09 ft-lb/in² - NB	Average value: 3.31 kJ/m² Grade Count:12
	2.00 - 4.00 kJ/m² @Temperature -30.0 - -30.0 °C	0.952 - 1.90 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 2.92 kJ/m² Grade Count:6
Charpy Impact Unnotched	1.30 - 1000 J/cm²	6.19 - 4760 ft-lb/in²	Average value: 5.17 J/cm² Grade Count:26
	2.00 - 999.9 J/cm² @Temperature -30.0 - -30.0 °C	9.52 - 4759 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 2.50 J/cm² Grade Count:5
Charpy Impact, Notched	0.100 - 1000 J/cm²	0.476 - 4760 ft-lb/in²	Average value: 1.55 J/cm² Grade Count:30
	0.200 - 0.200 J/cm² @Temperature -30.0 - -30.0 °C	0.952 - 0.952 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 2.79 J/cm² Grade Count:3
Dart Drop, Total Energy	0.600 - 40.0 J	0.443 - 29.5 ft-lb	Average value: 11.3 J Grade Count:9
Instrumented Impact Total Energy	28.2 - 37.6 J	20.8 - 27.7 ft-lb	Average value: 34.5 J Grade Count:3
Tear Strength	6.30 - 104 kN/m	35.9 - 593 pli	Average value: 34.6 kN/m Grade Count:26
Elmendorf Tear Strength MD	9.10 - 660 g	9.10 - 660 g	Average value: 337 g Grade Count:4
Elmendorf Tear Strength TD	1.50 - 816 g	1.50 - 816 g	Average value: 415 g Grade Count:4
Dart Drop Test	325 - 590 g	0.717 - 1.30 lb	Average value: 460 g Grade Count:4
Compression Set	8.00 - 43.0 %	8.00 - 43.0 %	Average value: 24.3 % Grade Count:13

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+7 - 1.00e+15 ohm-cm	1.00e+7 - 1.00e+15 ohm-cm	Average value: 7.28e+14 ohm-cm Grade Count:11
Surface Resistance	1.00e+8 - 1.00e+15 ohm	1.00e+8 - 1.00e+15 ohm	Average value: 7.36e+14 ohm Grade Count:11
Dielectric Constant	2.50	2.50	Average value: 2.50 Grade Count:8
Dissipation Factor	0.000300 - 0.000800	0.000300 - 0.000800	Average value: 0.000533 Grade Count:8
Comparative Tracking Index	600 V	600 V	Average value: 600 V Grade Count:8

Thermal Properties	Metric	English	Comments
CTE, linear	59.4 - 90.0 µm/m-°C	33.0 - 50.0 µin/in-°F	Average value: 75.0 µm/m-°C Grade Count:14
Deflection Temperature at 0.46 MPa (66 psi)	55.0 - 82.0 °C	131 - 180 °F	Average value: 71.7 °C Grade Count:20
Deflection Temperature at 1.8 MPa (264 psi)	39.0 - 83.0 °C	102 - 181 °F	Average value: 63.6 °C Grade Count:45
Vicat Softening Point	35.0 - 99.0 °C	95.0 - 210 °F	Average value: 73.2 °C Grade Count:58
Brittleness Temperature	-64.0 - -50.0 °C	-83.2 - -58.0 °F	Average value: -56.0 °C Grade Count:6
Flammability, UL94	HB - V-0	HB - V-0	Grade Count:10
Oxygen Index	27.0 %	27.0 %	Average value: 27.0 % Grade Count:4

Optical Properties	Metric	English	Comments
Refractive Index	1.56 - 1.58	1.56 - 1.58	Average value: 1.57 Grade Count:18
Haze	0.200 - 28.0 %	0.200 - 28.0 %	Average value: 2.67 % Grade Count:37
Gloss	125 - 162 %	125 - 162 %	Average value: 143 % Grade Count:9
Transmission, Visible	77.0 - 99.0 %	77.0 - 99.0 %	Average value: 90.1 % Grade Count:52

Processing Properties	Metric	English	Comments
Processing Temperature	180 - 232 °C	356 - 450 °F	Average value: 213 °C Grade Count:12
Nozzle Temperature	190 - 200 °C	374 - 392 °F	Average value: 195 °C Grade Count:4
Melt Temperature	163 - 250 °C	325 - 482 °F	Average value: 207 °C Grade Count:30
Mold Temperature	10.0 - 50.0 °C	50.0 - 122 °F	Average value: 36.6 °C Grade Count:21
Drying Temperature	60.0 - 76.7 °C	140 - 170 °F	Average value: 68.3 °C Grade Count:6

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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