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Goyenchem-GPPS22

Goyenchem-GPPS22 by Go Yen Chemical Industrial Company is a high molecular weight, general purpose polystyrene (GPPS) compound with a low residual monomer. Exhibits high strength, mold dimensional stability, excellent transparency, easy processability and good heat resistance. Designed for processing by injection molding and extrusion. Goyenchem-GPPS22 is used as extruded polystyrene (XPS) for construction insulation, polystyrene paper (PSP) for foam plates, bowls and cups.
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Product Type
PS or GPPS (Polystyrene) > PS (or GPPS)
Product Status
COMMERCIAL
Applications/ Recommended for
  • Buildings & constructions > Insulation
  • Packaging
  • Extrusion
  • Injection molding - thermoplastics

Goyenchem-GPPS22 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
2.3 g/10 min
(200°C, 5 kg Load) 
ASTM D1238
Residual SM monomer
200 ppm

Goyenchem-GPPS22 Processing Guidelines

Extrsion/Injection Properties

Value & Unit
Test Condition
Test Method
Cylinder Temperature
160 - 300 °C
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