Edistir R 321P Polimeri Europa Polystyrene, Medium Impact

Product Description

Medium impact polystyrene combining easy flow and high stiffness.

For injection moulding of parts with low thickness and high rigidity.

Designation: Thermoplastics ISO 2897-PS-I,M,083-12-04-30

Typical uses are toys, stationery, small containers for packaging, refrigerator components, point of sales, household wares, disposable razors, technical items.

R 321P is certified UL94 HB "all colors" at 1.5 mm (UL file E83071).

This grade in its natural version complies by composition with the requirements set by the main Regulations for plastic materials intended for food contact (including the EEC Directive 2002/72/CE and subsequent amendments).

General

Material Status

Commercial: Active

Availability

Europe

Features

Food Contact Acceptable

Good Flow

High Rigidity

High Stiffness

Medium Impact Resistance

Uses

Consumer Applications

Containers

Electrical/Electronic Applications

Household Goods

Low Temperature Applications

Packaging

Stationary Supplies

Toys

Agency Ratings

Forms

Pellets

Processing Method

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 Volume vs Temperature (ISO 11403-2)

Viscosity vs. Shear Rate (ISO 11403-2)

Physical	Nominal Value	Unit	Test Method
Density		g/cm³	ISO 1183
Apparent Density		g/cm³	ISO 60
Melt Mass-Flow Rate (MFR) (200°C/5.0 kg)		g/10 min	ISO 1133
Molding Shrinkage		%	Internal Method
Water Absorption (73°F, 24 hr)		%	ISO 62
Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus		psi	ISO 527-2/1
Tensile Stress			ISO 527-2/50
Yield		psi
Break		psi
Tensile Strain (Break)		%	ISO 527-2/50
Flexural Strength²		psi	ISO 178
Impact	Nominal Value	Unit	Test Method
Notched Izod Impact
73°F, 0.126 in		ft·lb/in	ISO 180/4A
-22°F		ft·lb/in²	ISO 180/1A
73°F		ft·lb/in²	ISO 180/1A
Hardness	Nominal Value	Unit	Test Method
Rockwell Hardness (L-Scale)			ISO 2039-2
Thermal	Nominal Value	Unit	Test Method
Deflection Temperature Under Load (264 psi, Annealed)		°F	ASTM D648
Vicat Softening Temperature
--		°F	ISO 306/A50
--		°F	ISO 306/B50
CLTE - Flow		in/in/°F	ASTM D696
Thermal Conductivity		Btu·in/hr/ft²/°F	ISO 8302
Electrical	Nominal Value	Unit	Test Method
Surface Resistivity		ohms	IEC 60093
Volume Resistivity		ohm·cm	IEC 60093
Dielectric Constant (50 Hz)			IEC 60250
Dissipation Factor (50 Hz)			IEC 60250
Comparative Tracking Index (Solution A)		V	IEC 60112
Electric Strength		V/mil	IEC 60243-1
Flammability	Nominal Value	Unit	Test Method
Flame Rating - UL (0.0591 in, All Colors)			UL 94
Glow Wire Ignition Temperature (0.0630 in)		°F	IEC 60695-2-13
UL File Number
Additional Information	Nominal Value	Unit	Test Method
Designation
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Edistir® R 321P, Edistir R 321P, Edistir® , Edistir, EdistirR321P, R 321 P, R 321P, R321, 321P, R321P, PS, Polystyrene, Medium Impact, Polystyrene Medium Impact, PS (MIPS), PS MIPS, Polystyrene, Polimeri Europa, PolystyreneMediumImpact, PSMIPS, 321R
Features
Features may also be described by the following terms: High Stiffness, High Rigidity, Medium Impact Resistance, Good Flow.
Uses
Uses may also be described by the following terms: Household Goods, Housewares, Electrical Applications, Electronic Applications, Electrical/Electronic Applications, Electrical Sector.
Agency Ratings
This plastic material has 1 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): EU (1).

Injection	Nominal Value	Unit
Processing (Melt) Temp		°F
Mold Temperature		°F
Injection Notes
Predrying normally not required

Notes

¹Typical properties: these are not to be construed as specifications.

²0.079 in/min

Edistir® R 321P

Medium Impact Polystyrene

Supplied by Polimeri Europa