Wittenburg Cawiton CN970 SEBS

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Wittenburg Cawiton CN970 SEBS
Categories:	Polymer; Thermoplastic; Styrene-Butadiene
Material Notes:	Cawiton CN970 is a high performance SEBS grade with a hardness of 70 Shore A. The temperature resistance and compression set are striking better than standard SEBS compounds. Information provided by Wittenburg Group
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Physical Properties	Metric	English	Comments

Density	1.10 g/cc	0.0397 lb/in³	ISO 2781
Melt Flow	5.9 g/10 min @Load 5.00 kg, Temperature 230 °C	5.9 g/10 min @Load 11.0 lb, Temperature 446 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	70	70	ISO 868
Tensile Strength	7.40 MPa	1070 psi	Flow direction; ISO 37
	9.70 MPa	1410 psi	Cross Flow direction; ISO 37
Elongation at Break	500 %	500 %	Flow direction; ISO 37
	610 %	610 %	Cross Flow direction; ISO 37
100% Modulus	2.80 MPa	406 psi	Cross Flow direction; ISO 37
	3.50 MPa	508 psi	Flow direction; ISO 37
200% Modulus	3.90 MPa	566 psi	Cross Flow direction; ISO 37
	4.70 MPa	682 psi	Flow direction; ISO 37
300% Modulus	5.10 MPa	740 psi	Cross Flow direction; ISO 37
	5.90 MPa	856 psi	Flow direction; ISO 37
Tear Strength, Total	36.0 N	8.09 lb (f)	Cross Flow direction; ISO 34-2
	38.0 N	8.54 lb (f)	Flow direction; ISO 34-2
Compression Set	45 % @Temperature 70.0 °C, Time 79200 sec	45 % @Temperature 158 °F, Time 22.0 hour	ISO 815
	83 % @Temperature 120 °C, Time 86400 sec	83 % @Temperature 248 °F, Time 24.0 hour	ISO 815

Thermal Properties	Metric	English	Comments
Melting Point	152 °C	306 °F

Processing Properties	Metric	English	Comments
Processing Temperature	30.0 - 60.0 °C	86.0 - 140 °F	Hopper
Rear Barrel Temperature	170 - 210 °C	338 - 410 °F
Middle Barrel Temperature	180 - 220 °C	356 - 428 °F
Front Barrel Temperature	180 - 230 °C	356 - 446 °F
Nozzle Temperature	180 - 230 °C	356 - 446 °F

Descriptive Properties
Color	natural, opaque

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PWITTN019 / 281769

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