Chimei Polylac® PA-777B ABS
Polylac® PA-777B High Heat High Impact ABS Resin
Polylac PA-777B ABS resin combines high heat resistance and strong impact performance, even in freezing conditions. Its lightweight design cuts material costs without sacrificing strength. UL94 HB-certified for safety, it’s a reliable choice for manufacturers needing materials that handle heat, shocks, and everyday wear.
Associated Documents
ISO TDS
ASTM TDS
MSDS
RoHS
SVHC
UL Product iQ
Processing Data
Typical property data
Physical Properties
- Melt Flow Index: 8.5 ml/10 min (ISO 1133, 220°C × 10 kg)
- Mass Density: 1.03 g/cm³ (ISO 1183, 23°C)
Mechanical Properties
- Tensile Strength (Yield): 44 MPa (ISO 527, 50 mm/min)
- Tensile Strength (Break): 34 MPa (ISO 527, 50 mm/min)
- Tensile Elongation: 35% (ISO 527, 50 mm/min)
- Flexural Strength: 67 MPa (ISO 178, 2 mm/min)
- Flexural Modulus: 2.2 GPa (ISO 178, 2 mm/min)
- Izod Impact Strength (23°C, Notched): 21 KJ/m² (ISO 180/1A)
- Izod Impact Strength (-30°C, Notched): 11 KJ/m² (ISO 180/1A)
- Charpy Impact Strength (23°C, Notched): 22 KJ/m² (ISO 179)
- Charpy Impact Strength (-30°C, Notched): 11 KJ/m² (ISO 179)
Thermal Properties
- Vicat Softening Temperature (50°C/hour, 1 kg): 113°C (ISO 306)
- Vicat Softening Temperature (50°C/hour, 5 kg): 106°C (ISO 306)
- Heat Distortion Temperature (Unannealed, 1.8 MPa): 86°C (ISO 75/A)
- Heat Distortion Temperature (Annealed, 1.8 MPa): 106°C (ISO 75/A)
- Coefficient of Linear Thermal Expansion: 8.4×10−58.4 \times 10^{-5} (ISO 11359)
Flammability
- UL-94 Flammability Rating: HB (1.5 mm thickness)
Mold Shrinkage
- Mold Shrinkage: 0.3%–0.6% (ISO 294-4)
Process Guide
- Pre-Drying Conditions: 90–95°C for 3 hours (depending on humidity, reground resin ratio, and storage conditions)
- Barrel Temperature:
- Maximum: 250°C (zones 1–3)
- Minimum: 220–230°C
- Mold Temperature: 30–70°C (depending on part thickness and gate/runner design)
- Injection Pressure: 50–70 kg/cm²
- Holding Pressure: 40–60 kg/cm²
- Back Pressure: 5–15 kg/cm²
Features & Benefits
Handles High Heat Easily
Polylac PA-777B resists heat up to 113°C, keeping its shape in hot environments. Ideal for irons, heaters, and auto parts near engines.
Stays Tough in Cold
Even at -30°C, it keeps 11 KJ/m² impact strength. Perfect for outdoor gear or appliances exposed to temperature swings.
Molds Smoothly, Saves Time
With a 8.5 melt flow index, it fills molds fast. Low shrinkage (0.3–0.6%) ensures precise parts, cutting waste and production costs.
Use & Applications
- Household Appliances: Hair dryer tubes, iron casings, heater shells
- Automotive Components: Under-hood parts, connectors, water tank covers
- Durable Electronics: Power adapter housings, router casings