Ningbo Formosa GP5250 GPPS is a high-transparency, high-flow general-purpose polystyrene resin. This grade features excellent injection molding processability and dimensional stability, making it widely suitable for electronics, precision packaging, and consumer goods, serving as an ideal raw material choice for those seeking both high quality and cost-effectiveness.
| Manufacturer | FCFC |
|---|---|
| MFR | 7.0 g/10min |
| Elongation at Break | 2.0 % |
| Flexural Modulus | 3330 MPa |
| Izod Notched Impact | 17 J/m |
Note: See the product description for additional technical specifications
Ningbo Formosa Chemicals & Fibre GP5250 GPPS is a general-purpose polystyrene (GPPS) resin meticulously developed and produced by Ningbo Formosa Chemicals & Fibre Co., Ltd. This material features a high-transparency, pelletized appearance, characterized by exceptional light transmission and purity. As a mainstream model in the plastic raw material market, GP5250 holds a prominent position in fields such as optical-grade applications, packaging containers, and high-quality daily-use plastic manufacturing, thanks to its superior flow processing performance and dimensional stability. It is the preferred solution for balancing high transparency with economic processability.
| Physical Properties | Test Condition | Test Value | Test Standard |
| Melt Flow Rate, Mass | 5 kg, 200 ℃ | 7 g/10min | — |
| Mechanical Properties | Test Condition | Test Value | Test Standard |
| Tensile Modulus | 23 ℃ | 3040 MPa | — |
| Tensile Strength | 23 ℃ | 40 MPa | — |
| Tensile Strain, Break | 23 ℃ | 2 % | — |
| Flexural Modulus | 23 ℃ | 3330 MPa | — |
| Flexural Strength | 23 ℃ | 78 MPa | — |
| Izod Impact Strength, Notched | 23 ℃, 6.35 mm | 17 J/m | — |
| Thermal Properties | Test Condition | Test Value | Test Standard |
| Heat Deflection Temperature | Annealed, 1.8 MPa, 80 ℃, 3.18 mm, 2 hr | 87 ℃ | — |
| Vicat Softening Point | — | 94 ℃ | — |
| Flammability Rating | NC, 1.5 mm | HB | — |
| Other Properties | Test Condition | Test Value | Test Standard |
| Residual Monomer | — | < 700 ppm | — |
The technical data sheet (TDS) of Ningbo Formosa Chemicals & Fibre GP5250 GPPS material from Ningbo Formosa Chemicals & Fibre corporation, if there are differences, please refer to the official website of Ningbo Formosa Chemicals & Fibre.
Exceptional Optical Transparency: GP5250 offers high light transmittance, giving finished products an excellent glass-like aesthetic, making it an ideal material for transparent decorative parts.
Superior Processing Flow: This grade possesses excellent melt flowability, enabling smooth injection molding of complex, thin-walled structures and significantly shortening molding cycles.
Outstanding Dimensional Stability: The material features high rigidity and low shrinkage, ensuring consistent product dimensions when using high-precision molds.
High Hardness and Rigidity: With a flexural modulus of up to 3330 MPa, finished products exhibit stable resistance to pressure and deformation.
Stable Processing Performance: Optimized for injection molding processes, this grade provides a favorable thermal processing window with minimal batch-to-batch variation during production.
Food and Daily Packaging: Suitable for manufacturing high-transparency food containers, cold drink cups, juice bottles, and various storage jars to meet transparent display requirements.
Consumer Electronics Accessories: Widely used for decorative panels with high light transmittance, indicator light covers, and transparent housings for small electronic devices.
Stationery and Office Supplies: Used for products such as transparent pen holders, file folder sheets, and office supply housings, enhancing the product’s perceived quality.
Display Racks and Display Items: Suitable for cosmetic display racks, supermarket display signage, and various transparent display containers.
Toys and Ornaments: Used for producing exquisitely finished, high-transparency injection-molded toy components and decorative plastic ornaments.
Q1: Is special drying required for GP5250 prior to injection molding?
A: Yes. Although GPPS has low hygroscopicity, it is recommended to use a hot-air circulating dryer to dry the material at 70-80°C for 1-2 hours before processing to ensure the raw material is in optimal condition and to prevent surface defects such as bubbles or silver streaks.
Q2: What are the differences between GP5250 GPPS and PMMA (Acrylic)?
A: Compared to PMMA, GP5250 GPPS offers clear advantages in cost and processing ease. While PMMA excels in long-term weather resistance and surface hardness, GP5250 is a highly cost-effective alternative for products requiring high transparency and high-volume, low-cost injection molding.
Q3: Does this material meet environmental compliance requirements?
A: Ningbo Formosa Chemicals & Fibre’s GP5250 GPPS complies with major international environmental standards, such as the RoHS Directive. We provide comprehensive compliance documentation, including Technical Data Sheets (TDS) and Safety Data Sheets (SDS). If specific UL flame retardancy or more stringent food-grade certifications are required, please specify and request the relevant inspection reports from the supplier during procurement.
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