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SYNTHOS Krasten® 172 General Purpose Polystyrene

Category Polymer , Thermoplastic , Polystyrene (PS) , Polystyrene, Heat Resistant Grade
Manufacturer SYNTHOS Kralupy a.s.
Trade Name Krasten®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF SYNTHOS Krasten® 172 General Purpose Polystyrene.pdf
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Material Notes:
Very good heat resistance and mechanical strength. Examples of Application:Extrusion – cups for hot drinks, shower enclosure panels, lightweight XPS sheets. Blends with high impact polystyrene, SBS, thermoformed packaging.Injection moulding – vegetable boxes for refrigerators, CD and DVD cases.Synthos was formerly known as Kaucuk. All information provided by Synthos.
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 2.8 - 3.5 g/10 min

@Load 5.00 kg,
Temperature 200 °C
2.8 - 3.5 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 56.0 MPa
8120 psi
5mm/min; ISO 527-2/1A/5
Elongation at Break 3.0 %
3.0 %
50mm/min; ISO 527-2/1A/5
Tensile Modulus 3.20 GPa
464 ksi
1mm/min; ISO 527-2/1A/1
Flexural Strength 100 MPa
14500 psi
2mm/min; 80x10x4mm; ISO 178
Izod Impact, Unnotched (ISO) 12.0 kJ/m²

@Temperature 23.0 °C
5.71 ft-lb/in²

@Temperature 73.4 °F
80x10x4mm; ISO 180/1U
Charpy Impact Unnotched 1.60 J/cm²

@Temperature 23.0 °C
7.61 ft-lb/in²

@Temperature 73.4 °F
80x10x4mm; ISO 179/1eU
2.60 J/cm²

@Temperature 23.0 °C
12.4 ft-lb/in²

@Temperature 73.4 °F
80x10x4mm; ISO 179/1fU
Thermal Properties Metric English Comments
Deflection Temperature at 1.8 MPa (264 psi) 85.0 °C
185 °F
80x10x4mm; ISO 75-2/Af
Vicat Softening Point 101 °C
214 °F
50°C/h; 50N; 10x10x4mm; ISO 306/B50
105 °C
221 °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
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 >= 60.0 kV/mm
>= 1520 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
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