- +86 13375155601
- lwq@zijunplastic.com
- Kunshan City, China
Wanhua Chemical A1225 is a general-purpose polycarbonate (PC) resin designed for injection molding. It is characterized by high impact strength, excellent dimensional stability, and high heat resistance. This grade is suitable for producing technical parts in the electronics, automotive, and appliance industries. Available in standard 25kg packaging with technical support and TDS.
| Manufacturer | Wanhua Chemical |
|---|---|
| Density | 1.2 g/cm³ |
| Flexural Modulus | 2300 MPa |
| Tensile Strength at Yield | 65 MPa |
| Tensile Strength at Break | 68 MPa |
Note: See the product description for additional technical specifications
Wanhua Chemical A1225 PC (Polycarbonate) is a medium-viscosity general-purpose grade polycarbonate raw material, renowned in the global plastics processing market for its exceptional transparency, high impact strength, and excellent thermal stability,The leading material of choice for high-performance transparent engineering plastics.
As a professional plastic raw material supplier, ZiJun Plastics is committed to providing manufacturing enterprises worldwide with stable, high-quality Wanhua PC granules. Below are the core selling points of the A1225 grade:
Superior Optical Performance: High light transmittance with excellent UV stability.
Balanced Mechanical Strength: Maintains outstanding impact resistance and rigidity across a wide temperature range.
Processing Stability: Features good flowability and mold release properties, ideal for precision injection molding.
For engineers and procurement managers, precise physical parameters are key to ensuring accurate material selection. All indicators for Wanhua A1225 are tested under strict standard environments.
| Physical Properties | Test Value | Test Standard |
| Density | 1.2 g/cm³ | ASTM D792 |
| Melt Flow Rate (MFR) (300 °C, 1.2 kg) | 20 g/10min | ASTM D1238 |
| Mold Shrinkage, Parallel | 0.50-0.70 % | ASTM D955 |
| Water Absorption (24 hr, 23 °C) | 0.2 % | ASTM D570 |
| Mechanical Properties | Test Value | Test Standard |
| Tensile Modulus (1 mm/min) | 2300 MPa | ASTM D638 |
| Tensile Strength at Yield (50 mm/min) | 65 MPa | ASTM D638 |
| Tensile Strength at Break (50 mm/min) | 68 MPa | ASTM D638 |
| Elongation at Yield (50 mm/min) | 6 % | ASTM D638 |
| Elongation at Break (50 mm/min) | 120 % | ASTM D638 |
| Flexural Strength (2 mm/min) | 97 MPa | ASTM D790 |
| Flexural Modulus (2 mm/min) | 2300 MPa | ASTM D790 |
| Izod Notched Impact Strength (23 °C) | 720 J/m | ASTM D256 |
Due to its balance of high flowability and high transparency, Wanhua A1225 PC is widely used in thin-walled and complex structural parts requiring high dimensional accuracy:
Electronics: Mobile phone middle frames, tablet housings, LED lighting covers, and switch panels. Its excellent electrical insulation ensures the safe operation of precision components.
Automotive Industry: Dashboard transparent covers, interior lighting lenses, and air conditioning vent components. The heat resistance of A1225 allows it to withstand extreme climate challenges inside vehicles.
Mechanical Components: Transparent protective face shields, precision gear brackets, and industrial observation windows. It utilizes high impact resistance to effectively prevent hazards caused by accidental breakage.
During the material selection stage, customers often hesitate between different polymers. Below is a comparison between A1225 and common alternatives:
| Dimension | Wanhua PC A1225 | PMMA (Acrylic) | ABS Resin |
| Transparency | High (approx. 90%) | Very High (approx. 92%) | Opaque (except special transparent grades) |
| Impact Strength | Extremely Strong (Good Toughness) | Fragile (Easy to break) | Average |
| Heat Resistance | High (Up to 120°C+) | Average (approx. 80°C) | Medium (approx. 90°C) |
| Cost | Medium-High | Medium | Relatively Low |
Summary: If your product requires both full transparency and high impact resistance, PC A1225 is a more perfect solution than Acrylic or ABS.
The molecular chains of Wanhua A1225 are extremely sensitive to moisture. Incorrect processing can lead to silver streaks or degradation of physical properties.
Drying: A dehumidifying dryer must be used. Recommended temperature is 120°C for 4 – 6 hours. Moisture content should be controlled below 0.02%.
Melt Temperature: The recommended range is 280°C – 310°C. Excessively high temperatures cause yellowing, while low temperatures generate internal stress.
Mold Temperature: Recommended to be set at 80°C – 100°C to achieve optimal surface gloss and minimal residual stress.
Professional Tip: Larger gate designs are recommended to reduce shear stress.
Q1: Does Wanhua A1225 comply with EU RoHS and REACH environmental standards?
Yes, Wanhua Chemical A1225 granules are produced without the addition of harmful substances and fully comply with the latest EU environmental compliance requirements, making them suitable for the global market.
Q2: Why does cracking occur after injection molding with A1225?
This is usually caused by residual internal stress. Please check if the mold temperature is too low, or perform heat treatment (annealing) after injection to release stress. Also, ensure the material is fully dried.
Q3: Does ZiJun Plastics provide custom coloring services for A1225?
As a professional supplier, we provide not only raw color granules but also high-precision color matching services based on Pantone or RAL color codes provided by customers, ensuring a balance between color and transparency.
