Product Overview & Key Features
Sinopec Baling Petrochemical SEBS YH-602T is a high-quality thermoplastic elastomer (hydrogenated product of SBS, namely styrene-ethylene/butylene-styrene block copolymer) produced by Sinopec Baling Petrochemical (Sinopec Hunan Petrochemical Co., Ltd.). As a high-performance polymer elastomer material, this grade offers the following core advantages:
- Exceptional Physical and Mechanical Properties: Exhibits outstanding tensile stress at defined elongation, tensile strength, and elongation at break, demonstrating excellent performance in elastic deformation and resilience.
- High Flowability and Processing Adaptability: The molecular structure design imparts favorable melt flow characteristics, making it well-suited for the molding and processing of various complex-structured products.
- Weathering and Aging Resistance: Due to the hydrogenation and saturation of unsaturated double bonds in the molecular backbone, its resistance to thermal-oxygen aging, ozone, and ultraviolet radiation is significantly superior to that of conventional elastomers.
- Compatible Processing Techniques: Widely applicable for thermoplastic polymer blend modification, injection molding, extrusion molding, and footwear applications.
Technical Specifications
Physical Properties
| Property | Test Condition | Value | Unit | Test Method |
| Volatile Matter | — | 0.09 | wt% | Internal Method |
| Solution Viscosity | Toluene Solution 25%, 25℃ | 250 | mPa·s | Internal Method |
Mechanical Properties
| Property | Test Condition | Value | Unit | Test Method |
| Tensile Stress | 300% | 5.9 | MPa | GB/T 528-2009 |
| Tensile Strength | — | 21.2 | MPa | GB/T 528-2009 |
| Elongation at Break | — | 495 | % | GB/T 528-2009 |
| Shore Hardness | A | 88 | — | GB/T 531.1-2008 |
Optical Properties
| Property | Test Condition | Value | Unit | Test Method |
| Yellowness Index | — | 1.9 | — | HG/T 3862-2006 |
Disclaimer: The technical specifications for Sinopec Baling SEBS YH-602T presented herein are derived from data issued by Baling Petrochemical or certified third-party testing institutions. While we have made every effort to ensure the accuracy of the information provided, we assume no liability for any consequences arising from the use of YH-602T based on these data. Given the variables involved in processing conditions, we strongly recommend conducting thorough trials of YH-602T under your specific operational environment prior to final material selection.
Applications & Processing Guidelines
- Recommended Application Sectors:
- Polymer Modification: Used as a toughening agent or blending base material for plastics (such as PP, PE, etc.) to enhance impact toughness and surface touch feel.
- Industrial and Household Articles: Suitable for manufacturing various over-molded grips, soft seals, damping cushions, and elastomeric toys.
- Footwear and Consumer Goods: Widely applied in high-end footwear sole materials, sports equipment accessories, etc.
- Processing Operation Points:
- Equipment and Temperature: Recommended for processing on conventional thermoplastic processing equipment (such as single-screw or twin-screw extruders and injection molding machines). Processing temperatures are generally recommended to be set between 180℃ and 220℃, which can be adjusted appropriately based on product structure and equipment performance.
- Drying Treatment Recommendation: Although SEBS pellets themselves have low moisture absorption, their surfaces may adsorb free moisture during long-term storage or in high-humidity environments. To prevent surface bubbles or defects during high-temperature processing, pre-drying (e.g., drying at 70℃-80℃ for 2-4 hours) is recommended prior to processing.
Logistics, Packaging & Compliance
- Packaging Specifications: Adopts standard moisture-proof composite packaging bags with a net weight of 25kg/bag. Palletized services can be provided upon customer request to accommodate ocean and land shipping loading and unloading.
- Hazardous Chemical Classification: This product is classified as a non-hazardous chemical, complying with international maritime (IMDG) and air regular cargo transportation regulations.
- Delivery Lead Time: Standard spot stock is typically arranged for shipment within 7-14 working days after order confirmation; flexible export logistics solutions are offered for Full Container Load (FCL) or Less than Container Load (LCL) shipments.
- Compliance and Environmental Statements:
- Complete original Technical Data Sheets (TDS), Material Safety Data Sheets (MSDS), and Certificate of Analysis (COA) are provided.
- Complies with the European Union RoHS directive and REACH regulation restrictions on SVHC (Substances of Very High Concern), supporting green and sustainable supply chain audit standards.
Frequently Asked Questions (FAQs)
Q1: Is drying treatment mandatory for SEBS YH-602T before injection molding or extrusion?
A1: Although this material has an extremely low moisture absorption rate, its surface may still carry trace amounts of condensation water during high-humidity seasons or after prolonged storage. To ensure defect-free surfaces without bubbles or silver streaks and to achieve stable physical properties, we recommend performing a forced-air drying process at 70℃–80℃ for 2–4 hours prior to processing.
Q2: Which plastics are suitable for blend modification with this grade?
A2: YH-602T features good compatibility systems and is commonly used for blending with polypropylene (PP), polyethylene (PE), and certain polar engineering plastics, primarily to improve the low-temperature impact strength, surface touch feel (slip resistance, flexibility), and stress cracking resistance of the base materials.
Q3: Can complete batch quality certificate documents (COA) be provided?
A3: Yes. Each actual shipment is accompanied by the corresponding original factory Certificate of Analysis (COA) and compliance documents corresponding to the batch, ensuring complete traceability of the product batch number and fully meeting the quality management system (ISO/IATF, etc.) audit requirements of the client’s factory.
