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Edistir® N 1840

Category:	PS (GPPS) , General Purpose Polystyrene
Manufacturer:	Versalis S.p.A.
Trademark:	Edistir®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	SM2nE7_Edistir-N-1840.pdf
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General purpose polystyrene combining easy flow and medium heat.

Edistir N 1840 is suggested in extrusion for glossy capping of HIPS sheets and for blending with HIPS or clear SBS for stiffer thermoformable sheets.
This grade exhibits excellent processability in injection moulding and it is recommended for complex and thin-wall parts and fast moulding cycles.

Designation: Thermoplastics ISO 1622-PS,G,085—12

Applications
Thermoformed disposable packaging and glossy sheets for industrial and fridge applications. Injection moulded beverage cups, point of sales, containers for foods and cosmetics, toys, housewares, medical articles (Petri dishes).

General Information
Features	Highlight Workability, good Fast molding cycle Good liquidity Heat resistance, medium Compliance of Food Exposure General
Uses	Thin wall parts Cup Low temperature application Industrial application Cosmetics Mixing Household goods Sheet Food container Tread rubber General Toys Medical/nursing supplies
Agency Ratings	Europe No 10/2011
UL File Number	E83071
Appearance	Clear/transparent Natural color
Forms	Particle
Processing Method	Extrusion Sheet extrusion molding Thermoforming Injection molding
Multi-Point Data	Isothermal Stress vs. Strain (ISO 11403-1) Secant Modulus vs. Strain (ISO 11403-1) Shear Modulus vs. Temperature (ISO 11403-1) Specific Heat vs. Temperature (ISO 11403-2) Specific Volume vs Temperature (ISO 11403-2) Viscosity vs. Shear Rate (ISO 11403-2)

Physical	Nominal Value	Unit	Test Method
Density	1.05	g/cm³	ISO 1183
Apparent Density	0.65	g/cm³	ISO 60
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)	10	g/10 min	ISO 1133
Molding Shrinkage	0.30 - 0.60	%	Internal method
Water Absorption (23°C, 24 hr)	< 0.10	%	ISO 62

Hardness	Nominal Value	Unit	Test Method
Rockwell Hardness (M-Scale)	80		ISO 2039-2

Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus	3250	MPa	ISO 527-2/1
Tensile Stress (Break)	39.0	MPa	ISO 527-2/5
Tensile Strain (Break)	1.8	%	ISO 527-2/5
Flexural Stress ¹	69.0	MPa	ISO 178

Impact	Nominal Value	Unit	Test Method
Notched Izod Impact ²			ISO 180/1A
-30°C	1.5	kJ/m²	ISO 180/1A
23°C	1.7	kJ/m²	ISO 180/1A

Thermal	Nominal Value	Unit	Test Method
Deflection Temperature Under Load (1.8 MPa, Annealed)	84.0	°C	ASTM D648
Vicat Softening Temperature
--	92.0	°C	ISO 306/A50
--	88.0	°C	ISO 306/B50
CLTE - Flow	7.0E-5	cm/cm/°C	ASTM D696
Thermal Conductivity	0.17	W/m/K	ISO 8302

Electrical	Nominal Value	Unit	Test Method
Surface Resistivity	> 1.5E+15	ohms	IEC 60093
Volume Resistivity	> 7.0E+15	ohms·cm	IEC 60093
Dielectric Strength	70	kV/mm	IEC 60243-1
Dielectric Constant (50 Hz)	2.50		IEC 60250
Dissipation Factor (50 Hz)	2.0E-4		IEC 60250
Comparative Tracking Index (Solution A)	375	V	IEC 60112

Flammability	Nominal Value	Unit	Test Method
Flame Rating (1.50 mm, All Colors)	HB		UL 94
Glow Wire Ignition Temperature (1.60 mm)	650	°C	IEC 60695-2-13

Additional Information	Nominal Value
Designation	Thermoplastics ISO 1622-PS,G,085-12

Injection	Nominal Value	Unit
Processing (Melt) Temp	200 - 250	°C
Mold Temperature	10.0 - 50.0	°C

Injection instructions
Predrying normally not required.

Extrusion	Nominal Value	Unit
Melt Temperature	210 - 240	°C

Note Message
1 .	2.0 mm/min
2 .	4mm

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