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GPPS General Purpose Polystyrene Resin Pellets - High Transparency·Easy Processing·Multi-scenario Compliance Solution
I. Core Selling Points
✅ High Transparency Grade: Light transmittance ≥91% (ASTM D1003), low haze, enhances end-product visual texture
✅ Processing-Friendly: Low melt viscosity, compatible with injection molding/extrusion/blow molding, shortens cycle time, reduces production costs
✅ Stable Performance: Water absorption ≤0.03% (24h/23℃), dimensional tolerance ±0.02mm, mechanical stability in humid environments
✅ Compliance Assurance: Meets FDA 21 CFR §177.1640 (food contact grade), RoHS, REACH regulations, low odor & migration
✅ Cost-Effective: Industrial mass production advantage, supports customizations (coloring, modification), adapts to trial-to-mass production cycles
II. Core Product Specifications (Professional Table with Data Support)
Performance Category | Test Item | Test Standard | Typical Value | Unit |
Basic Properties | Density | ASTM D792 | 1.05 | g/cm³ |
Light Transmittance (3mm sheet) | ASTM D1003 | ≥91 | % | |
Haze (3mm sheet) | ASTM D1003 | ≤1.2 | % | |
Water Absorption (24h/23℃) | ASTM D570 | ≤0.03 | % | |
Mechanical Properties | Tensile Strength (Yield) | ASTM D638 | 42 | MPa |
Elongation at Break | ASTM D638 | 2.5 | % | |
Izod Impact Strength (Unnotched) | ASTM D256 | 1.8 | kJ/m² | |
Thermal Properties | Vicat Softening Point (1kg) | ASTM D1525 | 92 | ℃ |
Heat Distortion Temperature (0.45MPa) | ASTM D648 | 96 | ℃ | |
Melting Point | DSC | 240-260 | ℃ | |
Processing Properties | Melt Flow Rate (200℃/5kg) | ASTM D1238 | 10-30 | g/10min |
Electrical Properties | Volume Resistivity | ASTM D257 | ≥1×10¹⁶ | Ω·cm |
Compliance Certifications | Food Contact Certification | FDA 21 CFR §177.1640 | Compliant | - |
Environmental Certification | RoHS/REACH | Compliant with restricted substances | - |
III. Target Application Scenarios (Industry + Pain Points + Solutions)
1. Packaging Industry → High Transparency + Compliance Assurance
• Applicable Products: Food packaging boxes/trays, transparent cosmetic bottles, electronic component blister packs, gift box liners
• Core Value: High light transmittance for product display, food-contact safe with no migration, low odor for sealed packaging, resists wrinkling during blister forming
2. Electronics & Electrical Industry → Insulation + Dimensional Stability
• Applicable Products: Power supply housings, electrical accessories, insulation gaskets, connector shells
• Core Value: Excellent electrical insulation (volume resistivity ≥10¹⁶Ω·cm), heat distortion temperature ≥96℃, suitable for high-temperature processing, tight dimensional tolerance
3. Toy Industry → Safety + Easy Coloring
• Applicable Products: Transparent building blocks, model housings, doll accessories, educational toys
• Core Value: Environmentally compliant (no heavy metals/phthalates), excellent colorability (custom Pantone colors available), impact resistance for children's use scenarios
4. Daily Necessities/Medical Industry → Hygiene + Weather Resistance
• Daily Necessities: Transparent water cups, pen barrels, photo frames, decorative parts (weather-resistant, no yellowing after long-term use)
• Medical: Disposable medical product packaging, medical device housings (meets medical hygiene standards, low dust & no leaching)
IV. Quality Assurance System (Build Procurement Trust)
1. Production Process
• Adopts bulk polymerization/suspension polymerization process (optional), fully automated production line control, raw material purity ≥99.9% (styrene monomer)
• Batch Stability: Performance fluctuation ≤±3% per batch, supports continuous supply (monthly capacity of 1,000 tons)
2. Testing Standards
• Full-Process Inspection: Raw material inspection → Polymerization process monitoring → Finished product mechanical/thermal/compliance testing → Outbound re-inspection
• Testing Equipment: Colorimeter, impact tester, heat distortion temperature tester, gas chromatograph (migration testing)
3. Certification Qualifications
• Food Contact: FDA, GB 4806 (China)
• Environmental: RoHS 2.0, REACH (197 SVHC compliant)
• Quality System: ISO 9001
V. Cooperation Support (Lower Procurement Threshold)
✅ Sample Support: Free 5kgs samples, supports small-batch trial production (MOQ: 100kg)
✅ Customization Service: On-demand coloring (transparent/colored) and modification (toughened/flame-retardant/antistatic), delivery cycle: 7-15 days
✅ Technical Support: Provides injection molding/extrusion process parameter guidance (temperature, pressure, cooling time), 1-on-1 professional team support
✅ Logistics Guarantee: National warehouse distribution, supports sea/land/air transportation, door-to-door delivery for bulk orders
✅ After-Sales Guarantee: Unconditional return/replacement for quality issues, price locking policy for long-term cooperative customers
VI. Contact & Inquiry (Call to Action)
Inquiry Hotline: +86-159 9584 3932
Business Email: st002.sale@seetou.com
Online Consultation: Click [Customer Service] on the right for real-time quotes
Factory Address: Room 1111B, 11th Floor, Nandu Plaza Tower, No. 18 Fengjin South Road, Wuzhong Economic Development Zone, Suzhou city (On-site visits are welcome)
Contact us now to get customized solutions + free samples!
