Chimei WONDERLITE® PC-145K
WONDERLITE® PC-145K Flame Retardant Grade High Flow
Chi Mei’s WONDERLITE PC-145K is a high-flow, recyclable polycarbonate resin designed for precision manufacturing. Perfect for intricate parts like lighting keyboards and transparent housings, it balances rapid moldability with eco-friendly performance, reducing cycle times and waste for cost-effective, sustainable production.
Typical property data
Physical Properties
- Melt Flow Index: 45 ml/10 min (ISO 1133, 300°C × 1.2 kg)
- Mass Density: 1.2 g/cm³ (ISO 1183, 23°C)
Mechanical Properties
- Tensile Strength (Yield): 62 MPa (ISO 527, 50 mm/min)
- Tensile Strength (Break): 64 MPa (ISO 527, 50 mm/min)
- Tensile Elongation: 142% (ISO 527, 50 mm/min)
- Flexural Strength: 92 MPa (ISO 178, 2 mm/min)
- Flexural Modulus: 2.2 GPa (ISO 178, 2 mm/min)
- Izod Impact Strength (Notched, 23°C, 1/8”): 50 KJ/m² (ISO 180/1A)
Thermal Properties
- Vicat Softening Temperature: 145°C (1 kg, ISO 306, 50°C/hr); 140°C (5 kg, ISO 306, 50°C/hr)
- Heat Distortion Temperature (Unannealed): 120°C (ISO 75/A, 1.8 MPa)
- Coefficient of Linear Thermal Expansion: 6.0×10−5−8.0×10−56.0 \times 10^{-5} – 8.0 \times 10^{-5} (ISO 11359)
Flammability
UL Flammability Rating: V-2 at 3.0 mm (UL-94)
Mold Shrinkage
Mold Shrinkage: 0.5–0.7% (ISO 294-4)
Process Guide
- Pre-drying Conditions: 120°C for 4 hours (depending on humidity, storage conditions, and dryer performance)
- Barrel Temperature Profile:
- Nozzle: 240–300°C
- Compression Zone: 240–310°C
- Feeding Zone: 220–300°C
- Mold Temperature: 70–120°C (varies with article thickness, cooling system, and gate/runner design)
- Purging Recommendation: Use polyethylene or polypropylene (heat-stable resins); avoid heat-decomposing resins.
Features & Benefits
High-Flow Efficiency
The Chi Mei PC-145K High Flow formula (45 ml/10 min melt flow rate) fills complex molds effortlessly, slashing cycle times by up to 20% for delicate components like micro-switches or thin-walled LED lenses.
Sustainable & Recyclable
It supports closed-loop recycling without compromising strength or clarity—ideal for brands prioritizing circular manufacturing to cut costs and environmental impact.
Heat-Resistant Durability
It withstands 145°C Vicat softening and 120°C heat distortion temperatures, ensuring stability in high-heat applications like automotive connectors or LED light housings.
Use & Applications
- Lighting Keyboards: Ultra-thin, backlit keys for gaming gear and office peripherals with crystal clarity and scratch resistance.
- Transparent Products: Shatter-resistant LED diffusers, medical device covers, and protective touchscreens.
- Electrical Components: Connectors and housings requiring heat resistance and UL-certified flame retardancy.
