Chimei Polylac® PA-746H ABS
Plastic Granules
Polylac® PA-746H High Flow Grade High Impact ABS
Polylac PA-746H is a High Flow ABS resin engineered for thin-walled, high-impact applications. With exceptional flowability (40 ml/10 min) and robust impact resistance (27 KJ/m² at 23°C), it streamlines production while ensuring durability in demanding environments.
Associated Documents
ISO TDS
ASTM TDS
MSDS
UL Product iQ
Process Guide
Typical property data
Physical Properties
- Melt Flow Index: 40 ml/10 min (ISO 1133, 220°C × 10 kg)
- Mass Density: 1.03 g/cm³ (ISO 1183, 23°C)
Mechanical Properties
- Tensile Strength:
- 37 MPa (yield, ISO 527, 50 mm/min)
- 27 MPa (break, ISO 527, 50 mm/min)
- Tensile Elongation: 40% (ISO 527, 50 mm/min)
- Flexural Strength: 54 MPa (ISO 178, 2 mm/min)
- Flexural Modulus: 1.7 GPa (ISO 178, 2 mm/min)
- Izod Impact Strength (Notched):
- 27 KJ/m² (23°C, ISO 180/1A)
- 12 KJ/m² (-30°C, ISO 180/1A)
- Charpy Impact Strength (Notched):
- 28 KJ/m² (23°C, ISO 179)
- 14 KJ/m² (-30°C, ISO 179)
Thermal Properties
- Vicat Softening Temperature:
- 102°C (50°C/hr; 1 kg, ISO 306)
- 94°C (50°C/hr; 5 kg, ISO 306)
- Heat Distortion Temperature:
- 81°C (1.8 MPa, unannealed, ISO 75/A)
- 96°C (1.8 MPa, annealed, ISO 75/A)
- Coefficient of Linear Thermal Expansion: 9.2 × 10⁻⁵ (ISO 11359)
Flammability
Flammability Rating: HB (1.5 mm, UL-94)
Mold Shrinkage
Mold Shrinkage: 0.4–0.7% (ISO 294-4)
Features & Benefits
Superior Mold-Filling Efficiency
POLYLAC PA-746H’s high melt flow index (40 ml/10 min) ensures rapid, uniform filling of intricate molds—ideal for thin-wall designs like automotive trim or electronics housings, reducing cycle times and material waste.
Reliable Impact Resistance
With Izod impact strength of 27 KJ/m² (23°C) and 12 KJ/m² (-30°C), this ABS resin withstands drops, vibrations, and cold environments, perfect for outdoor equipment or automotive components exposed to harsh conditions.
Thermal Stability Under Pressure
A Vicat softening temperature of 102°C (1KG load) ensures dimensional stability during high-heat processes like plating or assembly, minimizing warping in appliances or industrial parts.
Use & Applications
- Thin-Wall Electronics: Smartphone cases, laptop frames – lightweight yet impact-resistant.
- Automotive Trim: Dashboard vents, door handles – high flow for detailed textures, durable in temperature swings.
- Appliance Components: Vacuum cleaner housings, power tool grips – resists cracking during assembly and daily use.
- Outdoor Equipment: HVAC covers, garden tool casings – maintains integrity in cold climates.
