GPPS-525
MEDAN
GPPS
Injection
Cipta Mulia Buana
Cipta Mulia Buana
Lihat Profil SellerCrystal-clear, high-gloss polystyrene for precision injection molding with excellent thermal stability and flow properties
GPPS-525 is a premium-grade general-purpose polystyrene engineered specifically for injection molding applications that demand optical clarity, high surface gloss, and dimensional stability. Produced by Vietnam Polystyrene Co., Ltd.—the only PS manufacturer in Vung Tau—this resin delivers consistent performance across high-volume production runs. Available in natural (GPPS-525N) and blue-tinted (GPPS-525) variants, it offers design flexibility without compromising mechanical integrity. With low volatility (<1000 ppm), GPPS-525 ensures cleaner processing and safer working environments. Its balanced rigidity, reliable thermal resistance up to 90°C, and smooth melt flow make it ideal for transparent consumer goods, packaging, and household items where aesthetics and function must align.
Specifications
- Tensile Strength: 415 kgf/cm² (ASTM D638)
- Elongation at Break: 2% (ASTM D638)
- Izod Impact Strength (Notched): 1.6 kgf·cm/cm (ASTM D256)
- Flexural Strength: 700 kgf/cm² (ASTM D790)
- Heat Deflection Temperature (HDT): 90°C @ 0.45 MPa (ASTM D648)
- Vicat Softening Temperature: 95°C (ASTM D1525)
- Melt Flow Index (MFI): 7 g/10 min (ASTM D1238 (200°C, 5 kg))
- Specific Gravity: 1.04 (ASTM D792)
Applications
- Transparent food & beverage containers
- Cold/hot drink cups
- Lampshades and lighting components
- Household ware (e.g., hangers, trays)
- Toys
- Audio cassettes and electronic housings
- Ballpoint pens and stationery
- Retail packaging requiring high gloss and clarity
Advantages
- Exceptional optical clarity and surface gloss
- Excellent flow properties for complex mold filling
- Good dimensional stability at elevated temperatures
- Low volatility (<1000 ppm) for cleaner processing
- Consistent mechanical performance meeting ASTM standards
- Available in natural and blue-tinted variants for design flexibility
- Lightweight yet structurally rigid
- Suitable for high-speed injection molding with reduced cycle times
Processing Conditions
- Drying: Not typically required, but recommended at 70–80°C for 1–2 hours if moisture is suspected
- Melt Temperature: 180–220°C
- Mold Temperature: 40–80°C
- Injection Pressure: Moderate to high, depending on part geometry
- Screw Speed: 50–100 rpm
- Back Pressure: 5–10 bar recommended for homogeneity
Regulatory Compliance
- Complies with general ASTM standards (D638, D256, D790, D648, D1525, D1238)
- Suitable for non-food-contact applications unless certified otherwise
- Meets standard industrial safety requirements for polystyrene resins
Storage Conditions
- Store in a cool, dry, well-ventilated area
- Keep sealed to prevent moisture absorption
- Shelf life: 12 months under recommended conditions
Safety Information
- Refer to Safety Data Sheet (SDS) for full handling instructions
- Avoid inhalation of dust or fumes during processing
- Use adequate ventilation and PPE during handling and processing
- Not classified as hazardous under normal use conditions per GHS
| Brand | VNPS |
|---|---|
| Manufacturer | Vietnam Polystyrene |
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