Chimei POLYREX® PH-888G HIPS
Polyrex® PH-888G HIPS Extrusion Grade High Gloss
Chimei POLYREX PH-888G is a high-impact, high-gloss HIPS resin engineered for durability and aesthetics. The material solves pain points in manufacturing—combining toughness, heat stability, and a ready-to-use finish, perfect for appliances, electronics, and industrial components. Trusted by engineers for demanding applications.
Associated Documents
ISO TDS
ASTM TDS
MSDS
UL Product iQ
Processing Data
Typical property data
Physical Properties
- Melt Flow Index: 4 ml/10 min (ISO 1133, 200°C × 5 kg)
- Mass Density: 1.03 g/cm³ (ISO 1183, 23°C)
Mechanical Properties
- Tensile Strength (Yield): 35 MPa (ISO 527, 50 mm/min)
- Tensile Strength (Break): 28 MPa (ISO 527, 50 mm/min)
- Tensile Elongation: 45% (ISO 527, 50 mm/min)
- Flexural Strength: 48 MPa (ISO 178, 2 mm/min)
- Flexural Modulus: 2.2 GPa (ISO 178, 2 mm/min)
- Izod Impact Strength (Notched):
- 23°C: 11 KJ/m² (ISO 180/1A)
- -30°C: 5 KJ/m² (ISO 180/1A)
- Charpy Impact Strength (Notched):
- 23°C: 10 KJ/m² (ISO 179)
- -30°C: 5.5 KJ/m² (ISO 179)
Thermal Properties
- Vicat Softening Temperature:
- 102°C (ISO 306, 50°C/hr; 1 kg)
- 92°C (ISO 306, 50°C/hr; 5 kg)
- Heat Distortion Temperature (HDT):
- 79°C (ISO 75/A, 1.8 MPa, unannealed)
- 95°C (ISO 75/A, 1.8 MPa, annealed)
- Coefficient of Linear Thermal Expansion: 4 6×10−54~6 \times 10^{-5} (ISO 11359)
Flammability
UL Flammability Rating: HB (UL-94, 1.5 mm)
Mold Shrinkage
Mold Shrinkage: 0.4%–0.7% (ISO 294-4)
Process Guide
- Pre-Drying: 80°C for 2–3 hours (based on humidity, regrind ratio, and storage conditions)
- Barrel Temperature Profile (°C):
- Max: 205–210–180
- Min: 185–190–160
- Mold Temperature: 40–70°C (dependent on part thickness, dimension, and gate/runner system)
- Additional Notes:
- Avoid dust and contamination during handling.
- Do not retain hot melt in the barrel for long durations.
- Manifold system temperature should not exceed 240°C to prevent degradation.
Features & Benefits
Superior Impact Resistance
POLYREX PH-888G delivers 11 KJ/m² Izod impact strength (23°C), ensuring components withstand drops, vibrations, and rough handling. Perfect for monitor housings or fan blades requiring long-term durability.
Heat Resistance & Stability
With a Vicat softening point of 102°C, this High Impact HIPS resists warping under heat. Ideal for air-conditioning panels or parts near motors, maintaining structural integrity even in warm environments.
Premium Aesthetic Finish
Its high-gloss surface enhances visual appeal for consumer-facing products like appliance panels or electronics. Reduces post-processing needs while delivering a sleek, professional look.
Use & Applications
- Indoor Air-Conditioning Panels: Heat resistance prevents warping near motors.
- Ceiling-Mounted Extractor Fans: Impact strength handles vibrations and accidental impacts.
- Monitor Screen Housings: High gloss eliminates secondary painting, cutting costs.
