SYNTHOS Krasten® 154 General Purpose Polystyrene

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SYNTHOS Krasten® 154 General Purpose Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Heat Resistant Grade
Material Notes:	Improved heat resistance, very good rheological properties. Examples of Application: Injection moulding – dishes, jars, Petri dishes, screw caps. Extrusion – blends with high impact polystyrene or coextrusion – high gloss surface. Additional formation possible. Synthos was formerly known as Kaucuk. All information provided by Synthos.
Key Words:	GPPS
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Physical Properties	Metric	English	Comments

Density	1.05 g/cc	0.0379 lb/in³	ISO 1183
Linear Mold Shrinkage	0.0020 - 0.0050 cm/cm	0.0020 - 0.0050 in/in	Internal; 50x50mm
Melt Flow	9.0 - 10 g/10 min @Load 5.00 kg, Temperature 200 °C	9.0 - 10 g/10 min @Load 11.0 lb, Temperature 392 °F	Granulate; ISO 1133/H

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	150 MPa	21800 psi	H 358/30; Ø 50x4mm; ISO 2039-1
Tensile Strength at Break	45.0 MPa	6530 psi	5mm/min; ISO 527-2/1A/5
Elongation at Break	2.0 %	2.0 %	50mm/min; ISO 527-2/1A/5
Tensile Modulus	3.10 GPa	450 ksi	1mm/min; ISO 527-2/1A/1
Flexural Strength	90.0 MPa	13100 psi	2mm/min; 80x10x4mm; ISO 178
Izod Impact, Unnotched (ISO)	7.00 kJ/m² @Temperature 23.0 °C	3.33 ft-lb/in² @Temperature 73.4 °F	80x10x4mm; ISO 180/1U
Charpy Impact Unnotched	1.00 J/cm² @Temperature 23.0 °C	4.76 ft-lb/in² @Temperature 73.4 °F	80x10x4mm; ISO 179/1eU
	1.80 J/cm² @Temperature 23.0 °C	8.57 ft-lb/in² @Temperature 73.4 °F	80x10x4mm; ISO 179/1fU

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+16 ohm-cm	>= 1.00e+16 ohm-cm	500V; Ø 93x3mm; IEC 93
Surface Resistance	>= 1.00e+15 ohm	>= 1.00e+15 ohm	500V; Ø 93x3mm; IEC 93
Dielectric Constant	<= 2.7 @Frequency 50 Hz	<= 2.7 @Frequency 50 Hz	500V; Ø 93x3mm; IEC 250
Dielectric Strength	>= 50.0 kV/mm	>= 1270 kV/in	Transformer Oil; Ø 93x3mm; IEC 243-1
Dissipation Factor	<= 0.0020 @Frequency 50 Hz	<= 0.0020 @Frequency 50 Hz	500V; Ø 93x3mm; IEC 250
Comparative Tracking Index	>= 250 V	>= 250 V	Solution A; Ø 93x3mm; IEC 112

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	75.0 °C	167 °F	80x10x4mm; ISO 75-2/Af
Vicat Softening Point	86.0 °C	187 °F	50°C/h; 50N; 10x10x4mm; ISO 306/B50
	90.0 °C	194 °F	50°C/h; 10N; 10x10x4mm; ISO 306/A50
Flammability, UL94	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in	Tested in EZÚ Praha
	HB @Thickness 3.00 mm	HB @Thickness 0.118 in	Tested in EZÚ Praha
Glow Wire Test	650 °C	1200 °F	Ø 93x3mm; IEC 695-2-1

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PSYNT019 / 82632

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