Get the official technical data sheet (TDS) for CHIMEI WONDERLOY PC-345. Explore its exceptional low-temperature impact strength, high heat deflection, and application in automotive and electronic housings.
| Manufacturer | Chimei |
|---|---|
| Density | 1.10 g/cm³ |
| MFR | 19 g/10min |
| Tensile Strength at Yield | 50.0 MPa |
| Tensile Strength at Break | 42.0 MPa |
Note: See the product description for additional technical specifications
Manufacturer: CHIMEI Corporation
Category: Polycarbonate/Acrylonitrile-Butadiene-Styrene Alloy (PC/ABS Alloy)
Appearance: Natural/Black pellets
CHIMEI WONDERLOY® PC-345 is an outstanding representative within the high-performance PC/ABS alloy resin series developed by the globally renowned polymer leader, CHIMEI Corporation. As a general-purpose, injection-molding grade engineering plastic, it seamlessly blends the high heat resistance, superior impact strength, and high modulus of polycarbonate (PC) with the excellent processing flowability and low residual stress characteristics of ABS resin. In modern high-end manufacturing and bulk material international trade, WONDERLOY® PC-345 holds a dominant market position across core industrial sectors such as automotive interior/exterior trim, consumer electronics housings, and smart home appliance enclosures due to its exceptional property balance and dimensional stability. It represents the ideal material choice for global modification engineers and procurement specialists dealing with demanding structural designs.
| Physical Properties | Typical Value | Unit | Test Standard |
| Density(23 °C) | 1.1 | g/cm3 | ISO 1183 |
| Melt Mass-Flow Rate (MFR))(260 °C, 5 kg) | 19 | g/10min | ISO 1133 |
| Spiral Flow Length(50%, 50%, 260 °C, 2 mm) | 43 | cm | Internal Method |
| Molding Shrinkage | 0.40-0.60 | % | ISO 2577 |
| Mechanical Properties | Typical Value | Unit | Test Standard |
| Tensile Strength at Yield(50 mm/min) | 50 | MPa | ISO 527-2/50 |
| Tensile Strength at Break(50 mm/min) | 42 | MPa | ISO 527-2/50 |
| Tensile Strain at Break(50 mm/min) | 100 | % | ISO 527-2/50 |
| Flexural Modulus(2 mm/min) | 2100 | MPa | ISO 178 |
| Flexural Strength(2 mm/min) | 75 | MPa | ISO 178 |
| Charpy Notched Impact Strength(-30 °C) | 40 | kJ/m2 | ISO 179 |
| Charpy Notched Impact Strength(23 °C) | 45 | kJ/m2 | ISO 179 |
| Izod Notched Impact Strength(-30 °C) | 40 | kJ/m2 | ISO 180 |
| Izod Notched Impact Strength(23 °C) | 45 | kJ/m2 | ISO 180 |
| Thermal Properties | Typical Value | Unit | Test Standard |
| Heat Deflection Temperature, Unannealed(120 °C/hr, 1.8 MPa, 4 mm) | 93 | °C | ISO 75-2/A |
| Vicat Softening Temperature(50 °C/hr, 1 kg) | 125 | °C | ISO 306/A50 |
| Vicat Softening Temperature(5 kg, 50 °C/hr) | 110 | °C | ISO 306/B50 |
| Coefficient of Linear Thermal Expansion, Flow | 8.50E-05 | cm/cm/∘C | ISO 11359-2 |
| Flammability Rating(1.5 mm) | HB | — | UL 94 |
| Electrical Properties | Typical Value | Unit | Test Standard |
| Surface Resistivity | 1.00E+16 | ohms | IEC 60093 |
| Volume Resistivity | 1.00E+18 | ohms⋅cm | IEC 60093 |
| Relative Permittivity (Dielectric Constant)(1.0e+6 Hz) | 3.1 | — | IEC 60250 |
The technical data sheet (TDS) of CHIMEI WONDERLOY® PC-345 material from CHIMEI corporation, if there are differences, please refer to the official website of CHIMEI.
Exceptional Balanced Impact Strength: Exhibits an excellent Izod notched impact strength of 45 kJ/m2 at a room temperature of 23°C. Crucially, it retains a high toughness of 40 kJ/m2 even in extreme low-temperature environments down to -30°C, effectively protecting finished components from brittle failure under load.
Superb Melt Flow and Processability: With a melt mass-flow rate (MFR) of 19 g/10min under test conditions of 260°C and 5 kg, paired with a spiral flow length of 43.0 cm, this material easily fills complex, thin-walled, or large long-flow molds during injection molding. This significantly minimizes shear stress and shortens cycle times.
High Heat Deflection Temperature and Thermal Stability: Boasting a Vicat softening temperature of up to 125°C, it maintains structural rigidity in high-temperature operating conditions, meeting strict thermal resistance evaluation requirements for home appliances and automotive interior components.
Excellent Dimensional Stability and Low Shrinkage: Molding shrinkage is tightly controlled within a narrow window of 0.40% – 0.60%, minimizing anisotropic deformation. This is highly beneficial for tolerance control in precision assembled parts and ensures end products are not prone to warping.
Outstanding Electrical Insulation Safety Barrier: Possesses a high volume resistivity of up to 1.0E+18 ohms-cm and excellent dielectric properties, providing robust shock prevention and insulation protection for various electronic housing enclosures and internal assemblies.
Leveraging its ability to maintain high rigidity and high toughness without the need for glass fiber reinforcement, CHIMEI WONDERLOY® PC-345 is widely utilized across major manufacturing industries that demand premium surface finish and high impact performance:
Consumer Electronics & Smart Office Equipment: Smartphone mid-frames and back covers, laptop enclosures, tablet protective shells, precision internal structures, and external housings for high-speed printers and copiers.
Smart Home Appliance Enclosures: High-end vacuum cleaner bodies, heat-resistant housings for coffee makers and food processors, robotic vacuum bumpers, and control panel assemblies for microwave ovens and blenders.
Automotive Interior & Exterior Systems: High-stretch instrument panel structures, door handles, rearview mirror housings, automotive air vent louvers, center console brackets, and EV charging pile housing components.
Low-Voltage Electrical & Distribution Devices: Premium wall switch panels, industrial-grade plugs and sockets, miniature circuit breaker (MCB) enclosures, and precision plastic structural parts for electricity meter boxes.
Q1: What pre-molding drying treatment is required for CHIMEI WONDERLOY® PC-345 prior to injection molding?
A1: PC/ABS alloys are engineering plastics that are sensitive to moisture. If the resin contains excess trace moisture, hydrolysis will occur during high-temperature injection molding, leading to silver streaks and cosmetic bubbles on the part surface while drastically lowering impact strength. It is highly recommended to dry the material using a desiccant dryer at 80°C–90°C for 3–4 hours before processing, ensuring that the final moisture content of the resin is maintained below 0.02% (ideally below 0.01%).
Q2: Compared to pure PC or pure ABS materials, what are the core technical advantages of choosing WONDERLOY® PC-345 PC/ABS alloy?
A2: This material represents a classic complementary performance blend. Although pure PC provides exceptional heat resistance and impact strength, it suffers from high residual stress, notch sensitivity, and poor processing flowability, which can lead to molding difficulties or cracking in complex parts. On the other hand, pure ABS offers great flowability and easy processability but has limited thermal and impact performance. WONDERLOY® PC-345 alloy overcomes the shortcomings of both; it retains a high heat resistance and low-temperature toughness close to PC while gaining excellent processing flowability close to ABS, vastly lowering mold filling pressure and residual internal stress. It is ideal for molding large-surface-area or structurally complex thin-walled products.
Q3: Does this grade comply with major global environmental and regulatory certifications (such as RoHS/UL certification)?
A3: Yes. As a premium prime virgin resin manufactured by CHIMEI, WONDERLOY® PC-345 strictly complies with European Union RoHS 2.0 and REACH directives, and contains no hazardous heavy metals (such as lead, mercury, cadmium, hexavalent chromium) or toxic phthalate plasticizers. In terms of flammability compliance, it achieves a UL 94 HB rating at a thickness of 1.5 mm. Original Certificate of Analysis (COA) documents, UL Yellow Cards, or RoHS testing reports can be requested directly from our sales engineers during inquiry.
