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Ensinger PEI
Plastics Group Polifil® RP-HIPS High Impact Polystyrene
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified

Material Notes: Polifil® RP-High Impact Polystyrene (HIPS) combines the good stiffness properties of polystyrene, with enhanced impact properties gained by the addition of impact modifiers, usually butadiene rubber. An amorphous resin, HIPS has low post-molding shrinkage, good melt strength, and a wide melt processing window, making the resin ideal for many sheet and thermoforming applications. Injection molding applications include cutlery, appliance parts, and furniture components. Sheet extrusion applications include thermoformed plates, cups, and trays.

Information provided by The Plastics Group.

Vendors:
Available Properties
  • Specific Gravity, ASTM D792
  • Density, ASTM D792
  • Water Absorption, ASTM D570, 24 hours
  • Water Absorption, ASTM D570
  • Linear Mold Shrinkage, ASTM D955
  • Melt Flow, ASTM D1238, 200/5; May be specified
  • Melt Flow, ASTM D1238
  • Hardness, Rockwell R, ASTM D785
  • Tensile Strength, ASTM D638
  • Tensile Strength, Yield, ASTM D638
  • Elongation at Break, ASTM D638
  • Elongation at Break, ASTM D638
  • Elongation at Yield, ASTM D638
  • Tensile Modulus, ASTM D638
  • Flexural Strength, ASTM D790
  • Flexural Modulus, ASTM D790, tangent
  • Flexural Modulus, 1% Secant, ASTM D790
  • Izod Impact, Notched, ASTM D256
  • Izod Impact, Notched, ASTM D256
  • Gardner Impact, ASTM D5420, tup
  • Deflection Temperature at 0.46 MPa (66 psi), ASTM D648
  • Deflection Temperature at 1.8 MPa (264 psi), ASTM D648
  • Vicat Softening Point, ASTM D648
  • Rear Barrel Temperature
  • Middle Barrel Temperature
  • Front Barrel Temperature
  • Nozzle Temperature
  • Melt Temperature
  • Mold Temperature
  • Drying Temperature
  
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Manufacturer Notes:
The Plastics Group of America

Category Notes
Plastic

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