Diamond HI-851 is a High Impact Polystyrene grade with Opaque & matt finish surface. It gives excellent mechanical and heat resistance properties while providing with easy process ability and molding applications.

Polymer Name: High Impact Polystyrene (HIPS)

Processing Methods: Extrusion, Film Extrusion, Thermoforming

Melt Flow Index: 3.0 - 3.0 g/10 min

Technical Data Sheet

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Identification & Functionality

Plastics & Elastomers Functions
Technologies

Features & Benefits

Labeling Claims
Characterstics
  • High impact
  • Standard flow,
  • Low volatility

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications

Drinking cups, Refrigerator components, Cotton buds, Extrusion & Blow molding grade .

Processing:

  • Extrusion Grade
Processing

Although Polystyrene HI-851 can be processed by any method applicable to polystyrene based plastic, it is best suitable for Film Extrusion, other extrusion & Thermoforming. The melt temperatures should not exceed 260 °C .

Properties

Color
Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Tensile Strength at Yield / at break220kgf/cm2ASTM D-638
Specific Gravity (23°C)1.05ASTM D-792
Tensile Elongation50%ASTM D-638
Flexural Strength400kgf/cm2ASTM D-790
Izod Impact Strength10kgf-cm/cmASTM D-256
Gardner Falling Dart100In-lbASTM D-1709
Vicat Softening Temp950CASTM D-1525
Heat Distortion Temp850CASTM D-648
Melt Flow Rate MFR 200/53gm/10 minASTM D-1238

Regulatory & Compliance

Certifications & Compliance
Food Legislation

If used unmodified and under appropriated processing conditions, Polystyrene HI-861 conforms with FDA title 21 CFR section 177.1640 regarding the use of in food contact articles. Diamond Polystyrene is also approved by PCSIR (Pakistan Council of Scientific & Industrial Research).

Safety & Health

Product Safety

During processing of Polystyrene HI-851, small quantity of Styrene Monomer may be released into the atmosphere. At styrene vapor concentrations below 20 ppm, no negative health effects are expected. In our experience, the concentration of styrene does not exceed 1 ppm in good ventilate workplace.

Environmental

Diamond polystyrene resins can be recycled. Adequate ventilation should be used during processing. Diamond Polystyrene must not be dispose of to landfill or incineration as per government laws and regulations.

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia Pacific
  • Europe

Storage & Handling

Form supplied & Storage

Polystyrene HI-851 is supplied as cylindrical shaped granules. It has to be kept in its original containers in a dry, cool place, Avoid direct exposure to sunlight. Diamond HI-861 can also be stored in silos.