Chimei Polylac® PA-777E ABS
Plastic Granules
Polylac® PA-777E High Heat Moderate Impact ABS Resin
Polylac PA-777E ABS Resin is a heat-resistant material for tough jobs. It handles heat up to 129°C (Vicat) without warping and stays strong in cold (-30°C) with 12 KJ/m² impact. Easy to mold (4.5 melt flow) and stable (0.3–0.6% shrinkage), it reduces errors. UL94 HB rated for safety. Chimei’s PA-777E offers durability and ease for products that last.
Associated Documents
ISO TDS
ASTM TDS
MADS
RoHS
SVHC
UL Product iQ
Processing Data
Typical property data
Physical Properties
- Melt Flow Index: 4.5 ml/10 min (ISO 1133, 220°C × 10 kg)
- Mass Density: 1.07 g/cm³ (ISO 1183, 23°C)
Mechanical Properties
- Tensile Strength (Yield): 45 MPa (ISO 527, 50 mm/min)
- Tensile Strength (Break): 32 MPa (ISO 527, 50 mm/min)
- Tensile Elongation: 25% (ISO 527, 50 mm/min)
- Flexural Strength: 74 MPa (ISO 178, 2 mm/min)
- Flexural Modulus: 2.3 GPa (ISO 178, 2 mm/min)
- Izod Impact Strength (23°C, Notched): 12 kJ/m² (ISO 180/1A)
- Izod Impact Strength (-30°C, Notched): 6 kJ/m² (ISO 180/1A)
- Charpy Impact Strength (23°C, Notched): 13 kJ/m² (ISO 179)
- Charpy Impact Strength (-30°C, Notched): 6 kJ/m² (ISO 179)
Thermal Properties
- Vicat Softening Temperature:
- 129°C (50°C/hr, 1 kg, ISO 306)
- 121°C (50°C/hr, 5 kg, ISO 306)
- Heat Distortion Temperature (HDT):
- 101°C (1.8 MPa, unannealed, ISO 75/A)
- 121°C (1.8 MPa, annealed, ISO 75/A)
- Coefficient of Linear Thermal Expansion: 8.2×10−58.2 \times 10^{-5} (ISO 11359)
Flammability
UL-94 Rating: HB (1.5 mm)
Mold Shrinkage
Shrinkage: 0.3–0.6% (ISO 294-4)
Process Guide
- Pre-drying: 100–110°C for 3 hours (based on humidity, reground resin ratio, and storage conditions)
- Barrel Temperature Profile:
- Maximum: 270°C (Front Zone), 270°C (Middle Zone), 250°C (Rear Zone)
- Minimum: 240°C (Front Zone), 240°C (Middle Zone), 220°C (Rear Zone)
- Mold Temperature: 40–80°C (depending on thickness, dimensions, gate, and runner system)
- Injection Pressure: 50–70 kg/cm²
- Holding Pressure: 40–60 kg/cm²
- Back Pressure: 5–15 kg/cm²
Features & Benefits
Ultra-High Heat Resistance
Withstands temperatures up to 129°C (Vicat Softening) and 121°C (Heat Distortion), perfect for parts exposed to heat.
Balanced Strength & Impact Resistance
It offers 12 KJ/m² impact strength at room temperature and stays tough even at -30°C, ideal for durable, long-lasting products.
Easy to Mold, Stable Shrinkage
Melt flow index of 4.5 ml/10 min ensures smooth processing, while low mold shrinkage (0.3–0.6%) guarantees precise part dimensions.
Use & Applications
- Shells for ovens, heaters, and hair dryers
- Automotive under-hood components (e.g., sensor housings)
- Durable water tank covers and pump parts
- Iron casings and small appliance housings
