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Help CenterLotte HOPELEX PC-1220 High Flow Low Viscosity PC for Thin-Wall Injection Parts
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As a specialized manufacturer and supplier of high-performance engineering plastics, Shanghai Yunshan Plasticizing Co., Ltd. is proud to introduce our premium offering: Lotte HOPELEX PC-1220. This high-flow, low-viscosity polycarbonate resin is engineered specifically to overcome the challenges associated with molding complex, thin-wall components. Based in the industrial hub of Shanghai, we understand the demanding requirements of modern manufacturing, where efficiency, precision, and material performance are paramount. PC-1220 is our answer, designed to fill intricate molds effortlessly, reduce cycle times, and deliver parts with excellent dimensional stability and surface finish, making it an ideal choice for manufacturers seeking to enhance their production capabilities and product quality.
The Lotte HOPELEX PC-1220 stands out in the market due to its optimized molecular structure, which grants it superior flow characteristics compared to standard polycarbonates. This translates into tangible benefits for your injection molding process and the final product.
Exceptional Flowability: The low melt viscosity allows the material to fill thin sections and long flow paths with minimal injection pressure. This reduces the risk of short shots and weld lines, ensuring complete filling of complex geometries.
Reduced Internal Stress: The easy flow minimizes shear stress during injection, resulting in molded parts with lower internal stresses. This enhances the long-term dimensional stability and reduces the likelihood of stress cracking, especially when the parts are subjected to external loads or chemical exposure.
Energy and Cost Efficiency: Lower required injection pressure and temperature can lead to reduced energy consumption per cycle. Furthermore, the excellent flow often allows for the use of smaller tonnage machines or multi-cavity molds, optimizing production output and lowering operational costs.
Superior Surface Quality: The material's ability to replicate mold details precisely results in parts with excellent surface finish, high gloss, and sharp definition, which is crucial for consumer electronics, automotive interiors, and optical applications.
Retained PC Properties: Despite its enhanced flow, PC-1220 maintains the core desirable properties of polycarbonate, including high impact strength, good heat resistance, and inherent flame retardancy (depending on grade), making it suitable for demanding applications.
To provide a clearer overview, here are some typical properties and processing guidelines for Lotte HOPELEX PC-1220. Please note that specific values can vary and should be confirmed with technical datasheets for your application.
| Property | Typical Value / Condition | Test Method / Notes |
|---|---|---|
| Melt Flow Rate (MFR) | Approx. 20-30 g/10 min | 300°C / 1.2 kg |
| Tensile Strength | 60 - 65 MPa | ISO 527 |
| Notched Izod Impact Strength | 60 - 80 kJ/m² | 23°C, ISO 180 |
| Heat Deflection Temperature (HDT) | 125 - 135 °C | 1.8 MPa, ISO 75 |
| Recommended Melt Temperature | 280 - 310 °C | For injection molding |
| Recommended Mold Temperature | 80 - 100 °C | For optimal surface finish |
Application Areas: Lotte HOPELEX PC-1220 is particularly suited for applications where thin walls and complex shapes are required without compromising on mechanical performance. Key industries include:
Consumer Electronics: Housings for smartphones, tablets, laptops, and wearables.
Automotive Components: Interior trim, light guides, connectors, and other under-the-hood parts requiring chemical resistance.
Electrical & Lighting: LED light covers, diffusers, sockets, and switch components.
Medical Devices: Housings for portable equipment, transparent components requiring clarity and sterilization resistance.
General Industrial Parts: Thin-walled containers, gears, and functional prototypes.
Choosing a reliable supplier is as important as selecting the right material. Shanghai Yunshan Plasticizing Co., Ltd., operating from Shanghai, provides not just raw materials but also technical partnership. Our experience in the plastic industry allows us to offer valuable guidance on material selection and processing parameters. We maintain consistent quality in our Lotte HOPELEX PC-1220 supply, ensuring you receive a product that performs batch after batch. This reliability minimizes production disruptions and quality variances in your manufacturing process. By opting for PC-1220, you are investing in a solution that enhances manufacturability, reduces waste, and yields high-performance thin-wall parts that meet modern design challenges. Contact us today to discuss how this advanced polycarbonate can be integrated into your production line, request samples for testing, or obtain a detailed quotation tailored to your needs.
Frequently Asked Questions (FAQ)
Q: How thin of a wall can PC-1220 effectively fill?
A: While the achievable wall thickness depends on part geometry, flow length, and molding conditions, PC-1220 is specifically formulated for thin-wall applications. It can typically fill walls as thin as 0.6mm to 0.8mm effectively in standard molds, and even thinner in optimized designs.Q: Does the high flow rate compromise the mechanical strength of the final part?
A: No, a key achievement of PC-1220 is its ability to provide high flow while retaining the core mechanical properties of polycarbonate. Its impact strength and tensile properties remain suitable for structural applications requiring thin walls.Q: Is pre-drying necessary before processing PC-1220?
A: Yes, like most polycarbonates, PC-1220 is hygroscopic. We strongly recommend drying the pellets before processing, typically at 120°C for 3-4 hours, to achieve a moisture content below 0.02%. This prevents hydrolysis during molding, which can degrade molecular weight and affect properties.Q: Can PC-1220 be colored or mixed with additives?
A: Absolutely. PC-1220 is supplied in natural color and is highly compatible with a wide range of color masterbatches and additives such as UV stabilizers, flame retardants (if not already included), and anti-static agents. We can also supply pre-colored compounds upon request.Q: How does PC-1220 compare to standard PC in terms of cycle time?
A: Due to its lower viscosity and excellent flow, PC-1220 often allows for reduced injection time and potentially lower melt temperatures. This can contribute to a shorter overall cycle time, improving production efficiency.Q: Is this material suitable for food contact or medical applications?
A: The standard grade of PC-1220 is not specifically certified for food contact or medical use. For such regulated applications, special compliant grades with appropriate certifications and documentation are available. Please inquire about specific requirements.Q: What is the shelf life of this material?
A: When stored properly in its original, unopened packaging in a cool, dry environment (below 30°C and 50% relative humidity), the shelf life is typically 12 months from the date of manufacture. Once opened, it should be used promptly or re-sealed securely.Q: Do you provide technical support for processing this material?
A: Yes, as part of our service, we offer basic technical guidance on processing parameters for PC-1220, including drying conditions, temperature profiles, and injection speed recommendations to help you achieve optimal results.
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