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POLYREX® PG-22

Technical Datasheet | Supplied by Chi Mei

POLYLAC® PG-22 by Chi Mei is a general purpose polystyrene (PS (or GPPS)) grade. Is a bright and lightweight grade. Contains TPE modifier which can increase the hardness of molded products. Designed for injection molding method. POLYLAC® PG-22 complies with PFOA, PFOS, RoHS and UL 94 HB Flame Rating.

POLYREX® PG-22 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)

18.8 ml/10 min

(200°C × 5kg)

ISO 1133

Specific Gravity

1.04 g/cm³

(23°C)

ISO 1183

Linear Mold Shrinkage

0.4 - 0.7 %

ISO 294-4

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Pre-drying Temperature

80 °C

Pre-drying Time

2 - 3 hr

Barrel Temperature

150 - 195 °C

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POLYREX® PG-22

POLYREX® PG-22 Properties

Physical Properties

POLYREX® PG-22 Processing Guidelines

Injection Molding Properties