INEOS Styrolution K-Resin® KR38 Styrene Butadiene Copolymer (SBC)

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INEOS Styrolution K-Resin® KR38 Styrene Butadiene Copolymer (SBC)
Categories:	Polymer; Thermoplastic; Styrene-Butadiene; Styrene-Butadiene Copolymer, SBC
Material Notes:	K-Resin® KR38 alone or in blends, can be extruded into sheet and thermoformed on conventional equipment at high output rates. The favorable economics of K-Resin SBC, along with high productivity, have made possible tough clear disposable drinking cups, lids and other packaging applications. INEOS Styrolution has several grades of K-Resin SBC tailored for your sheet extrusion needs. Features: Combines Clarity and Toughness, Good Formability, High Surface Gloss, Good Toughness and Stiffness Information provided by Styrolution.
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Physical Properties	Metric	English	Comments

Density	1.01 g/cc	0.0365 lb/in³	ISO 1183
Water Absorption at Saturation	0.070 % @Temperature 23.0 °C	0.070 % @Temperature 73.4 °F	ISO 62
Linear Mold Shrinkage	0.0030 - 0.010 cm/cm	0.0030 - 0.010 in/in	ISO 294-4
Melt Flow	10 g/10 min @Load 5.00 kg, Temperature 200 °C	10 g/10 min @Load 11.0 lb, Temperature 392 °F	Volumetric; cm3/10 min; ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	55	55	ISO 868
Tensile Strength, Yield	15.0 MPa	2180 psi	ISO 527
Elongation at Break	180 %	180 %	ISO 527
Elongation at Yield	2.0 %	2.0 %	ISO 527
Tensile Modulus	0.900 GPa	131 ksi	ISO 527
Flexural Strength	20.0 MPa	2900 psi	ISO 178
Flexural Modulus	1.00 GPa	145 ksi	ISO 178
Charpy Impact Unnotched	NB @Temperature 23.0 °C	NB @Temperature 73.4 °F	ISO 179/1eU
Charpy Impact, Notched	5.00 J/cm² @Temperature 23.0 °C	23.8 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eA

Thermal Properties	Metric	English	Comments
CTE, linear	60.0 - 90.0 µm/m-°C	33.3 - 50.0 µin/in-°F	ISO 11359
Deflection Temperature at 0.46 MPa (66 psi)	73.0 °C	163 °F	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	55.0 °C	131 °F	annealed 4 hours at 80°C; ISO 75
Vicat Softening Point	50.0 °C @Load 5.10 kg	122 °F @Load 11.2 lb	VST/B/50. 50C/h; ISO 306
	75.0 °C @Load 1.02 kg	167 °F @Load 2.25 lb	VST/A/50. 50C/h; ISO 306

Optical Properties	Metric	English	Comments
Refractive Index	1.56	1.56	Sodium D Line; ISO 489
Haze	2.0 %	2.0 %	ASTM D 1003
Transmission, Visible	92 % @Wavelength 550 nm	92 % @Wavelength 550 nm	ASTM D1003

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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PSTYR9875 / 216102

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