T-HIPS 8350

T-HIPS 8350 is a high-impact polystyrene designed for extrusion sheets, offering improved ESCR compared to other high-impact polystyrene types like HIPS 7240. It provides excellent melt strength, making it ideal for deep-draw thermoforming. T-HIPS 8350 is suited for packaging applications that may involve stress cracking from fats, oils, or low temperatures, including products requiring contact with HCFC-expanded foam insulation.

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Product Name: T-HIPS 8350

Product Description: T-HIPS 8350 is a high-impact polystyrene designed for extrusion sheets, offering improved ESCR compared to other high-impact polystyrene types like HIPS 7240. It provides excellent melt strength, making it ideal for deep-draw thermoforming. T-HIPS 8350 is suited for packaging applications that may involve stress cracking from fats, oils, or low temperatures, including products requiring contact with HCFC-expanded foam insulation.

Applications:

  • Thermoforming
  • Fridge doors and cabinet liners
  • Packaging for fatty food sheets

Physical and Mechanical Properties:

Property Unit Test Method Typical Value
MELT FLOW INDEX (200°C 5KG) g/10min ASTM D-1238 4.5
STYRENE RESIDUAL MONOMER PPM ATOFINA Test <500
VICAT SOFTENING POINT (50 °C/hr 1kg) °C ASTM D-1525 96
ROCKWELL HARDNESS – ASTM D-785 SCALE/R54
TENSILE STRESS AT YIELD MPA ASTM D-638 18
TENSILE STRENGTH AT BREAK MPA ASTM D-638 20
ELONGATION AT BREAK % ASTM D-638 60
TENSILE MODULUS MPA ASTM D-638 1600
IZOD IMPACT KJ/M2 ASTM D-256 13

Additional Notes:

  • All values are typical and should not be construed as specifications. Users are advised to confirm through their own tests.
  • Density and shrinkage values of this grade are approximately 1.04 kg/lit and (0.4-0.7)% as per ASTM D-955.
  • Tests are conducted at 23°C unless specified otherwise.

 

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