Polystyrene (ps resin)
Appearance:
Polystyrene typically appears as a clear, transparent, or sometimes opaque material, depending on its form (e.g., solid or foam). It can be colorless or tinted with various colors when additives are used.
HS Code: 39031900
Other Names:
- Polystyrene
- Polyethenylbenzene
- Styrene polymers
- Polystyrol
- PS
- Styrofoam (common trade name for expanded polystyrene foam)
Identifiers:
- CAS Number: 9003-53-6
- ECHA InfoCard: 100.117.452
- UNII: 7X7Z26I81Q
- CompTox Dashboard (EPA): DTXSID3023248
Properties:
- Molecular Formula: (C8H8)n
- Density: 0.96–1.05 g/cm3 (solid); 0.01–0.05 g/cm3 (foam)
- Melting Point: ~240 °C (464 °F; 513 K) (decomposes above this temperature)
Sales Plastics offer polystyrene resins in various grades to meet your specific needs. Not sure which one fits your project? Simply send us your requirements, and our team will respond within 24 hours.
Our Contact Is as Solid as Our Resin!
Supply Various Grades of PS pellets
| Grade No. | Manufacturer | Melt Flow (g/10 min) | Properties | Application |
| 1540 | INEOS | 12 | DOWNLOAD | General purpose, packaging, disposable items |
| 168N | INEOS | 1.2~1.5 | DOWNLOAD | High clarity, food packaging, containers, cups |
| 158K | INEOS | 3 | DOWNLOAD | Medical grade, laboratory ware, medical devices |
| 1441 | INEOS | 8 | DOWNLOAD | High impact, automotive parts, housings |
| 1050 | INEOS | 2.8 | DOWNLOAD | Fridge drawer and diffusion plate |
| 147F | INEOS | 6.5 | DOWNLOAD | Stationery, appliance components, containers |
| 143E | Yangzi BASF | 6 | DOWNLOAD | High heat resistance, household appliances, |
| 165H | Yangzi BASF | 2.7 | DOWNLOAD | High heat resistance, industrial components |
| GP5250 | FORMOSA | 9 | DOWNLOAD | Food containers, Stationery, Cassettes, Cosmetic cases |
| GP535N | FORMOSA | 3.5 | DOWNLOAD | Lampshades, Crystal plates, Refrigerator drawer |
| GP535H | FORMOSA | 2.6 | DOWNLOAD | Refrigerator drawer |
| GP550N | FORMOSA | 1.9 | DOWNLOAD | TV & illumination diffusion plate,Light guide plate |
| GP560N | FORMOSA | 1.9 | DOWNLOAD | TV & illumination diffusion plate,Light guide plate |
| GP5000 | FORMOSA | 10 | DOWNLOAD | TRP blending, Thin sheet injection |
| GP525N | FORMOSA | 6.7 | DOWNLOAD | Stationery, Clothing hangers, Lamp decoration, CD |
| GP5350 | FORMOSA | 4.3 | DOWNLOAD | PSP Sheets, OPS, Medicine containers |
| GP535A | FORMOSA | 2.6 | DOWNLOAD | PSP Sheets, OPS, Medicine containers |
| GP5500 | FORMOSA | 2.6 | DOWNLOAD | PSP Sheets, OPS, Medicine containers |
| 123 | SECCO | 8 | DOWNLOAD | High heat resistance, household appliances |
| 123P | SECCO | 8 | DOWNLOAD | Food containers and stationery items |
| 152 | SECCO | 3.8 | DOWNLOAD | Painting products and refrigerator liners |
Tairirex HIPS refers to High Impact Polystyrene (HIPS) produced by Formosa Chemicals & Fibre Corporation (FCFC), a leading Taiwanese chemical and plastics manufacturer. View All
| Grade No. | Manufacturer | Brand | Melt Flow (g/10 min 200°C/ 5kg) | IZOD Impact (23℃ kJ/m²) | Properties | Application |
| 476L | BASF | Bycolene | 5 | N\A | DOWNLOAD | Electrical housings, refrigerators, drawers |
| 2710 | BASF | Bycolene | 4.5 | N\A | DOWNLOAD | Refrigerator liners & sheet applications |
| HP835G | Formosa | TAIRILAC | 3.7 | N\A | DOWNLOAD | Electrical & appliance components applications |
| HP825G | Formosa | TAIRIREX | 4 | 0.09 | DOWNLOAD | Appliance components such as A/C housing |
| HP825N | Formosa | TAIRIREX | 3 | 0.15 | DOWNLOAD | Electrical panels, and home appliances housing |
| HP8250 | Formosa | TAIRIREX | 5.5 | 0.12 | DOWNLOAD | TV housing, terminal cable jacketing, and prototyping |
| HP9450 | Formosa | TAIRIREX | 3 | 0.15 | DOWNLOAD | Bobbins, extruded sheets, and flotation devices |
| HP825S | Formosa | TAIRIREX | 2.7 | 0.10 | DOWNLOAD | Automotive door liners and refrigerator inner liners |
| HP825T | Formosa | TAIRIREX | N\A | 0.11 | DOWNLOAD | Refrigerator inner liners, refrigerator door liners |
| MP6500 | Formosa | TAIRIREX | 6.70 | 0.08 | DOWNLOAD | Appliance components, stationery, clock housing |
| HP825F | Formosa | TAIRIREX | 9 | 0.115 | DOWNLOAD | Electrical appliance housings, baby car components |
| 825 | Huajin Chemica | Huajin Chemica | 6– 10 | N\A | DOWNLOAD | Injection molding and extrusion molding applications |
| 4241 | INEOS Styrolution | INEOS Styrolution | 3.5 | 11.5 | DOWNLOAD | Food packaging, housewares, extrusion |
| 6351 | INEOS Styrolution | INEOS Styrolution | 3.5 | 10 | DOWNLOAD | Electrical and electronic (E&E) products, toys |
| 8265 | INEOS Styrolution | INEOS Styrolution | 3.5 | 13 | DOWNLOAD | Refrigerator inner liners, thermoforming sheets |
| 495F | INEOS Styrolution | INEOS Styrolution | 9.5 | N\A | DOWNLOAD | Consumer electronics & appliance parts |
| HIPS622 | SECCO | SECCO | 4.5 | 12 | DOWNLOAD | Toys, housewares & appliance parts |
We're here to meet all your PS resin needs
Polystyrene (pS resin) FAQs
What is GPPS (General Purpose Polystyrene)
GPPS is a clear, amorphous thermoplastic that is widely used due to its excellent optical properties and ease of processing. It exhibits:
High Clarity: Ideal for applications that require transparency, such as display cases and packaging.
Rigid Structure: Offers a stable, dimensionally precise product with a typical density around 1.04 to 1.06 g/cm³.
Ease of Processing: Well-suited for extrusion, injection molding, and thermoforming operations.
Consistent Performance: Standardized grades ensure reproducibility in physical properties and mechanical strength, which is supported by industry data and technical specifications.
What is HIPS (High Impact Polystyrene)
HIPS is a rubber-modified form of polystyrene that offers enhanced impact resistance without compromising the basic processability of GPPS. Key differences include:
Improved Toughness: The incorporation of butadiene rubber increases impact strength by up to 2–5 times compared to GPPS.
Opaque Appearance: Unlike GPPS, HIPS is not naturally transparent, making it suitable for colored or printed products.
Versatility in Applications: Frequently used in automotive parts, consumer appliances, and packaging where durability is crucial.
Similar Density Range: Generally maintains a density around 1.04 to 1.06 g/cm³, but with modified mechanical properties due to the rubber content.
How do GPPS and HIPS compare in terms of processing and end-use applications?
Processing: Both GPPS and HIPS are processed via standard techniques such as injection molding and extrusion. However, HIPS typically requires slight modifications in process parameters to accommodate the rubber phase, which affects melt flow and cooling rates.
End-Use Applications:
GPPS: Preferred for products demanding high clarity, such as food containers, lighting fixtures, and clear display items.
HIPS: Chosen for applications needing high impact resistance, such as refrigerator liners, automotive components, and robust consumer electronics housings.
Data Support: Technical standards published within the polymer industry provide performance metrics that detail differences in impact resistance (with HIPS showing significantly higher Charpy impact values compared to GPPS).
What quality control measures and performance standards do your PS resin products meet?
Our PS resin products are manufactured under strict quality management systems that conform to international standards. Key performance indicators include:
Mechanical Strength: Tensile strength, impact resistance, and elongation at break are continuously monitored, with GPPS and HIPS grades meeting or exceeding ASTM or ISO specifications.
Dimensional Stability: Product consistency is maintained through rigorous in-house testing and quality assurance protocols, ensuring densities and physical properties remain within defined limits (typically within a narrow variance of standard industry values).
Processability: Consistent melt flow index (MFI) values ensure reliability during processing, backed by data from routine laboratory checks.
Certifications: Many of our products come with certifications verifying compliance with environmental and industry standards, providing added assurance to our customers.
Are your GPPS and HIPS products environmentally compliant and sustainable?
Yes. Our manufacturing processes for both GPPS and HIPS adhere to stringent environmental and safety regulations:
Regulatory Compliance: Our products are produced in accordance with RoHS, REACH, and other applicable environmental standards.
Recyclability: Both GPPS and HIPS are fully recyclable, and industry data confirms that recycling rates for polystyrene can approach 100% when proper systems are in place.
Sustainable Practices: We continuously optimize our production processes to reduce energy consumption and waste, with periodic audits verifying our adherence to international environmental management standards.
What support and technical resources do you provide for customers selecting between GPPS and HIPS?
We offer comprehensive technical support to help customers determine the best resin for their specific applications:
Technical Data Sheets (TDS): Detailed documentation includes mechanical, thermal, and processing properties.
Consultation Services: Our in-house experts are available to discuss the pros and cons of GPPS versus HIPS based on the customer’s application requirements and production conditions.
Case Studies and Application Notes: We provide examples and real-world performance data from various industries, helping customers make informed decisions.
After-Sales Support: Continuous technical and customer support is offered, ensuring that product selection and implementation are optimized for success.