|
HS Code |
862918 |
| Brand | Sinopec |
| Product Name | SEBS YH-503T |
| Polymer Type | Styrene Ethylene Butylene Styrene (SEBS) |
| Appearance | White pellet |
| Styrene Content | 30% |
| Density | 0.89 g/cm³ |
| Melt Flow Rate | 4.0 g/10 min (200°C/5 kg) |
| Shore A Hardness | 30 |
| Tensile Strength | 7.5 MPa |
| Elongation At Break | 900% |
| Volatility | 0.4% |
| Ash Content | 0.15% |
| Service Temperature | -50°C to 100°C |
As an accredited Sinopec SEBS YH-503T factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sinopec SEBS YH-503T is typically packaged in 25 kg white plastic bags, clearly labeled with product name, grade, and manufacturer details. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Sinopec SEBS YH-503T: typically 16 metric tons packed in 25kg bags, 640 bags per container. |
| Shipping | Sinopec SEBS YH-503T is typically shipped in 25 kg bags, securely stacked on pallets and wrapped for stability. The packaging ensures protection from moisture and contamination. Products are transported via sea or land freight, adhering to industrial safety standards, with clear labeling and documentation for efficient handling and identification. |
| Storage | Sinopec SEBS YH-503T should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and moisture. Keep the material in its original, tightly sealed packaging to prevent contamination. Avoid contact with strong oxidizing agents. Proper storage ensures product stability and performance over time. Handle with clean, dry tools to prevent degradation. |
| Shelf Life | Sinopec SEBS YH-503T has a recommended shelf life of two years when stored in a cool, dry, and well-ventilated area. |
Competitive Sinopec SEBS YH-503T prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@ascent-chem.com.
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Every batch of SEBS YH-503T we produce represents more than a formula — it carries hundreds of hours of resin polymerization and hands-on process control. Over the decades, our teams have spent countless shifts troubleshooting reactors, fine-tuning catalyst concentrations, and setting the parameters that ultimately resulted in the grade known commercially as YH-503T. This product emerged from practical efforts on our factory floor, shaped by ongoing conversations with processors and molded by the demands of real-world production environments.
At its core, SEBS YH-503T stands for strength, stability, and process ease. Unlike ethylene-based thermoplastics or traditional rubbers, the molecular structure of SEBS offers a unique blend of elasticity and thermal resistance. In our own operations, we have observed this specific model shine during extrusion and injection molding, especially when manufacturing soft-touch grips, sports gear, automotive seals, and cables. What makes this grade standout lies in its transparency and low gel content — features requested by many converters who need consistent clarity and a smooth finish in their finished goods.
In the past, certain SBS and SEBS materials required special care due to poor weatherability or yellowing issues. With YH-503T, extensive process modifications and raw material screening have allowed us to suppress discoloration and improve aging resistance. This means molded parts keep their appearance even after long exposure to light or heat, reducing returns and customer complaints. As producers, this advantage plays out in lower waste ratios and better reputation among our downstream partners.
We learned long ago that batch consistency begins with tight controls on monomer purity and catalyst handling. Our reactors feature real-time monitoring with over twenty parameters tracked during a typical run. The specific microstructure targeted in YH-503T only develops under closely managed polymerization temperatures and monomer addition rates. If we stray by even two degrees or let the feed composition drift, material strength or flow properties shift and force costly rework.
We run each lot through multiple analysis stages. Melt flow index, tensile elongation, and Shore A hardness readings go well beyond industry checks. Our lines regularly pause for corrective adjustment because we believe focus on process yields pays off downstream. This attitude turns into practical benefits for our partners: less variation between lots, consistent appearance, and properties that hold tight regardless of shipment age.
One reason buyers gravitate toward SEBS YH-503T traces to the clear, non-tacky finish it imparts in finished components. Tool grips, baby products, and medical tubing all showcase this clarity. Thin-wall parts made from this grade seldom cloud or haze, even with drawn-out cooling cycles or secondary operations like welding or printing.
Processors often face demands for softness without sacrificing strength. This resin balances both needs. Finished parts feel plush but remain durable under pressure, and our records show minimal failure even in applications with repeated flexing or twisting. This balance carries weight in fields like sports, leisure, and wearables where both tactile appeal and service life matter.
We have seen some processors push this material far beyond typical usage. One customer in the cable industry ran extended jacketing extrusions for over a week using YH-503T with only minor die fouling — a rare feat given the strict requirements for surface finish and dimensional tolerance. By contrast, older SBS-based grades in the same line led to frequent line stoppage and high scrap rates.
Our internal tests back up industry feedback. Over hundreds of laboratory pull and flex trials, the product holds together beyond 500% elongation, and shows no significant surface cracking even when exposed to hot, humid environments for eighty days or more. Over time, we have tweaked antioxidant loadings and stabilizer blends based on these observations, and each improvement circles back into regular production.
SEBS compounds sometimes face criticism for surface tack or residual odor in finished goods. In our plant, we tackled these challenges by adjusting process lines and evaluating new stripping agents. For the YH-503T model, post-reactor washing reduces Volatile Organic Compound content, dampening off-odors and stickiness. The downstream difference becomes clear on packaging lines. Operators report quicker demolding and less sticking in storage, which translates directly to higher throughput and fewer line stoppages.
One frequent comment we receive from processors is how smoothly YH-503T runs in diverse equipment. The melt viscosity profile sits comfortably in the process windows of standard injection and extrusion machines, reducing the learning curve and scrap during initial trials. We saw one partner rapidly shift an entire portfolio of garden tool grips from older TPEs to YH-503T, thanks to compatibility with current color masterbatches and ease of pigment dispersal. These details often make or break a plant manager’s decision, since every lost shift or surging rejection rate drives up both per-piece and overall project costs.
The differences become easiest to spot in final goods. Compared to earlier generation SEBS, this model achieves enhanced clarity and lower plate-out during overmolding, so end-users see fewer streaks and more repeatable surface appearance. Our internal QC teams still pull random bags off each lot and pressure-test finished sheets, ensuring that even under worst-case shipping and warehousing there’s little loss in flexibility or gloss.
The biggest gulf between YH-503T and conventional SBS grades boils down to aging resistance and elasticity retention at high temperatures. During side-by-side tests, conventional SBS often starts to yellow, crack, or lose stretch after less than a year in sunlit or heated storage. In contrast, finished parts made from our YH-503T retain both their appearance and mechanical properties through extended cycles of use and exposure.
Among SEBS contenders, some focus strictly on cost, delivering aggressive price points at the expense of clarity or softness. During regular benchmarking in our labs, we keep a close eye on clarity, tensile strength, and surface quality after secondary finishing or printing. Our data consistently place YH-503T in the top bracket for clarity and UV resistance.
One challenge raised with some SEBS products is a low-flow MFI that limits thin-wall processing, leading to incomplete fill and short shots in intricate tools. YH-503T shows a reliable MFI for most thin-wall applications, allowing for good part reproduction and reducing rejection in mass production. This level of processability comes from our ongoing control over reactor inputs and the feedback loop formed with our long-term partners.
Through many years of support and technical meetings, we have seen YH-503T rise to prominence in certain key sectors. Sporting goods makers use its elasticity and puncture resistance for handle grips and shoe soles, balancing softness with rebound. Cable producers regularly call out its smooth extrudability and surface gloss, key factors driving their switch away from less stable TPEs. Medical device makers remain loyal to the grade because of the resin’s inherent clarity, low odor, and reduced extractables after multiple sterilizations.
OEMs focused on children’s goods also point to the resin’s nontoxic nature and low migration risk, factors demanded by regulatory authorities in both the Americas and Europe. Paintability and in-mold printing also rate high among advantages, with end-users valuing the crisp graphics and long-term fade resistance.
Raw material safety must be backed by more than assurance. We certify every lot with a full panel of extractables, migration, and food-contact suitability tests, using both in-house and accredited third-party labs. The YH-503T grade consistently meets thresholds for major global regulations, including RoHS restrictions on halogens and heavy metals, and phthalate content. In practice, processors increasingly ask for test reports covering not just initial compliance but also leachate stability after aging, and we maintain a library of such data for audit purposes.
In our experience, certification means little unless every batch sustains compliance over years. We pulled fifteen samples out of regular YH-503T production, then ran multi-month migration testing in food simulants. No measurable migration above regulatory limits registered — a result that drives confidence in sensitive applications.
The story of YH-503T does not stand still. Several times each year, our factory pilots updates in reactor agitation, ingredient filtration, and antioxidant formulation. Feedback from product launches or field failures gets fed back to our lab teams. On-the-ground process engineers bring defect samples to research chemists on a routine basis, leading to incremental changes that push forward both property balance and long-term stability.
As sustainability continues its rise in the industry, we have started work on reducing the carbon intensity of our SEBS lines, aided by improvements in utility management and feedstock sourcing. Demands for recyclability and post-consumer content have shaped current R&D efforts. Early trials with our downstream partners show YH-503T blends well with both virgin and reprocessed SEBS, and parts manufactured from these blends retain high surface gloss and mechanical properties.
Our technical teams routinely spend days alongside converters, helping solve real-world issues ranging from streaking in profile extrusions to pigment separation in thin-walled overmoldings. Field data shows that tooling adjustments and minor tweaks in process temperature can harness the full range of YH-503T’s performance. In one instance, a switch to YH-503T in co-extruded handrails cut surface defects by almost half, easing downstream painting and fit-up.
We back up each delivery with a technical playbook, sharing findings from both large and small users. News of consistent improvement — fewer stoppages, reduced wear on screws, and higher rate of first-pass yield — flows back from customers. The mutual pursuit of process improvement creates alliances that last much longer than a single material rollout.
Market demands shift with surprising speed, especially in areas like personal care, medical devices, and automotive assembly. We watch global trends for clues on the next round of formulation or process changes. Customers increasingly demand versatility: a single grade used across several product lines, reducing inventory complexity. YH-503T answers this need with its broad performance window, letting smaller plants streamline resin choices without sacrificing on product performance or compliance.
Production efficiency holds equal weight with end-user features. Resin prices fluctuate, and downtime can wipe out anticipated margin gains in a single week. Feedback from converters using YH-503T points to low line maintenance and high run rates, two strengths that support stable output in both booming and quieter markets.
Production schedules do not pause for global interruptions. Years spent managing resin flow through trade barriers, transportation bottlenecks, and temporary feedstock limits taught us how to keep YH-503T on the ground and in customers’ hands. We allocate inventory strategically, monitor regional demand surges, and maintain a buffer for emergency supply. These efforts buffer customers from production halts and keep lines running, even under stressed logistics.
Consistency stems from both stable sourcing and relentless process discipline inside the plant gates. Our supply chain teams and operations managers meet weekly to identify issues before they grow, and this vigilance shows in the rare frequency of out-of-spec or late shipments in our historical data.
The challenge never ends. Each year we meet with OEMs and processors to reevaluate YH-503T’s role in their product lines. Each season brings new requirements: lower density, higher chemical resistance, smaller environmental footprint. Our responsibility remains to push the envelope, not just keeping pace but leading with practical, workable changes in both formulation and manufacturing technique.
Customers face new regulatory reviews, faster production cycles, and tougher end-user expectations. Our manufacturing experience keeps YH-503T on target, providing the stable performance, safety, processability, and innovation needed to keep their business one step ahead.
This grade carries forward the lessons of years spent on the factory floor and the insights of each customer conversation. SEBS YH-503T remains our answer to those challenges — reliable, versatile, and ready for whatever tomorrow brings.
