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Plastics & Elastomers
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Plastics & Elastomers
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GP 125

Technical Datasheet | Supplied by Kumho Petrochemical
GP 125 by Kumho Petrochemical is a general purpose polystyrene (GPPS) grade. Offers high strength, good transparency, good colorability, good electrical properties, good water resistance, and good dimensional stability without toxicity. Is suitable for processing by injection molding. Suitable for foaming process (thermoforming and foaming) with low-melt viscosity and decomposition by heating. GP 125 is recommended for kitchen utensils, cosmetic case, CD case, and dust covers for electronic equipment. It complies with the RoHS and UL 94 HB flame rating.
Product Type
PS or GPPS (Polystyrene) > PS (or GPPS)
Physical Form
Product Status

GP 125 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
9.0 g/10 min
(200°C, 5 kg)
ASTM D1238
Water Absorption
0.03 %
( )
1.04 g/cm³
( )

GP 125 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Nozzle Temperature
190 - 220 °C
Front Temperature
190 - 210 °C
Middle Temperature
180 - 200 °C
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