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HS Code |
517640 |
| Product Name | Sinopec LDPE 2420H |
| Manufacturer | Sinopec |
| Polymer Type | Low Density Polyethylene (LDPE) |
| Melt Flow Index 190c 2 16kg | 2.0 g/10min |
| Density 23c | 0.924 g/cm3 |
| Tensile Strength At Yield | 8.0 MPa |
| Elongation At Break | 400% |
| Vicat Softening Point | 94°C |
| Melting Point | 110°C |
| Application | Film extrusion |
| Form | Pellet |
| Color | Natural |
As an accredited Sinopec LDPE 2420H factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sinopec LDPE 2420H is packaged in white 25 kg bags with red and black Sinopec branding, chemical details, and safety information. |
| Shipping | Sinopec LDPE 2420H is shipped in 25 kg moisture-proof, polyethylene bags, securely stacked on pallets for stability and efficient handling. Pallets are shrink-wrapped and stored in clean, dry conditions to prevent contamination and degradation, ensuring safe and reliable transit by truck, rail, or container ship according to international chemical shipping standards. |
| Storage | Sinopec LDPE 2420H should be stored in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizers. Bags should be kept tightly sealed to prevent contamination and moisture absorption. The product should be stored off the floor to prevent damage and ensure stability. Avoid physical impacts and excessive stacking to maintain product integrity. |
Applications of Sinopec LDPE 2420H in Industrial ManufacturingSinopec LDPE 2420H is widely adopted by large-scale processors in packaging, wire and cable, film extrusion, foam production, and premium consumer goods due to its high purity, stable melt flow, and consistent pellet morphology. This section presents its performance and compliance in demanding downstream industrial sectors, focusing on practical formulation parameters and process considerations. 1. Blown Film Packaging for Food ContactFood packaging converters select this material for single- and multi-layer blown film lines, where low gel levels, precise clarity, and resistance to puncturing are crucial. Typical applications include bread bags, frozen food wrap, and produce films requiring compliance with food safety protocols. Its processing window supports both monolayer and co-extrusion with LLDPE or EVOH. Plant engineers optimize thickness and mechanical properties according to end-customer specifications and regulatory audits. Industry compliance standards
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2. Wire and Cable Insulation CompoundsCable manufacturers rely on this grade for low-tension cable jacketing, primary insulation, and sheathing, where dielectric stability and mechanical memory are vital. The resin’s low impurity content supports smooth extrusion, compatible with crosslinking and non-crosslinking lines. It meets critical performance checks in flame retardance and elongation, and integrates readily into existing cable granulation systems without significant retooling. Industry compliance standards
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3. Shrink Film for Industrial LogisticsProducers of polyolefin shrink film adopt this grade for secondary and stretch hood films due to its drawability, optical finish, and consistent thickness control. Its molecular architecture permits rapid shrinking and strong holding force at moderate tunnel temperatures. Users reporting increased output speeds with reduced splitting cite its reliability on both batch and continuous packaging lines, especially for palletization in automated logistics. Industry compliance standards
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4. Injection-Molded Household GoodsConsumer goods manufacturers specify this resin for lightweight, flexible, and impact-resistant items through injection molding, particularly where handling safety and regulatory cleanliness are required. It flows well into thin-walled and intricate cavity designs, reducing reject rates and improving demolding efficiency. QC teams track its grain uniformity and color consistency closely, ensuring compliance with migratory limits for food-contact and children’s products in regulated markets. Industry compliance standards
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5. Extruded Foam for Shock-Absorbing PackagingManufacturers of closed-cell and microcellular foam products use this grade for cushioning, where fine cell structure and chemical purity directly affect resilience and mold release in automated high-throughput lines. The resin blends with foaming agents like azodicarbonamide, with downstream QC focusing on odor neutrality and compressive recovery. This scenario demands batch-to-batch repeatability for supply contracts with electronics, automotive, and premium retail packaging sectors. Industry compliance standards
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6. Agricultural Greenhouse Film ManufacturingProfessional agri-film converters source this resin for long-life greenhouse covers and low tunnel films due to its resistance to sunlight aging, easy blending with light stabilizers and anti-drip agents, and suitability for wide-width extrusion. Material suppliers provide detailed QC logs with each batch, vital for compliance audits and negotiations with agricultural technology buyers. Extensive field testing confirms its contribution to harvest reliability. Industry compliance standards
Typical usage ratio
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Competitive Sinopec LDPE 2420H prices that fit your budget—flexible terms and customized quotes for every order.
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We’ve worked for decades to improve polyethylene production, keeping a close watch on end-use needs. Out of our experience, LDPE 2420H became a staple because it handles demands in film markets better than most general resin grades. Compared to lower-density or less-molecularly tailored LDPE, 2420H focuses its strengths on mechanical durability and clarity. Film extrusion lines run cleaner and quieter with this resin. Mainline sector operators count on that reliability, especially where small issues can multiply over a long run.
For food packaging converters, the difference between a sheet that tears or clouds up in a cold-chain environment and one that holds together hinges on resin purity and molecular weight distribution. Customers notice that 2420H draws down thinner at a stable gauge, reducing unit weight while preventing pinholes. Finished product won’t turn brittle in chilling rooms or lose stretch when heated for sealing.
Manufacturing this grade, we follow a strict protocol to safeguard melt index targets and density uniformity. The melt flow index for 2420H hovers near the sweet spot for blown and cast film—neither fast-running to the point of risking die drool nor slow enough to slump output. We oversee the raw ethylene sources ourselves, tweaking reactor temperature and initiator feed to produce the long-chain branching that makes the real-world difference. Colleagues on the polymerization line track each batch, running checks for gels, fisheyes, moisture, and contamination. Any deviation from the dense, clean pellet profile gets flagged and either corrected or rejected.
LDPE 2420H has earned a workload in supermarket produce bags, shrink films, industrial liners, and even the outer layers of medical packaging where toughness and form-stability are core requirements. Unlike higher-viscosity or coarser grades that might fit injection molding or pipe production, 2420H shows its value in lines that push extrusion head pressures and need seamless melt drawdown.
With a melt index in the 2.0–2.5 g/10 min range, 2420H combines processibility with toughness. Density around 0.924 g/cm³ helps the extrusion process create fine, steady bubble formation, improving optical properties and printability without the cloudiness some LDPEs can introduce. We see fewer hissy breakdowns from gels and far less downtime for line maintenance. Team leads on our customer’s shopfloors tell us they save hours per week on die cleaning and scrap collection.
Not every project calls for 2420H’s specific formulation. Some producers prioritize very high stiffness, or seek less clarity in favor of price, and for these sectors, competitors such as EVA-modified blends or ultra-low density products sometimes check boxes. For most mid-strength film producers though, 2420H strikes a balance between ease of handling and resilience. It seals predictably under a wide thermal window—a point our field reps return to after troubleshooting film that “just won’t seal” under standard weld bar ranges.
What our own data and partner feedback shows: LDPE 2420H runs “clean.” Meaning, less long-chain inhomogeneity, far fewer dark specks, and a near absence of fish-eyes. We pull samples from every production lot for microscope and melt-index checks. A single pellet can flag an upstream reactor anomaly. Other resins sometimes ship with more gels or off-odor that cause customers to chase warehouse issues. Our in-house logistics and silo management tackle this before packing and dispatch.
Comparison with LDPE general-purpose grades comes up often. General-use LDPEs, such as those with high melt index around 7 or above, speed initial processing but can produce less durable end products. LDPE 2420H stands in for customers seeking tougher films, willing to run extrusion a bit slower to gain in-service strength. We also found, especially in co-extruded film, that 2420H layers bond more evenly across lamination surfaces, avoiding the so-called “orange peel” effect common to uncontrolled branching or poorly sorted pellets.
Some buyers move to Metallocene PE or LLDPE, hoping to minimize raw material cost while lifting mechanical strength. LLDPE and mLLDPE compare favorably in puncture and tear strength, yet 2420H still wins in slip behavior and sealing—vital for automated bagging and pouch lines. The clarity and gloss difference is real; thin-gauge film in retail rolls or garment packaging takes on the kind of polished finish only controlled LDPEs deliver.
The most consistent demand for Sinopec LDPE 2420H remains food contact films—bread bags, pillow-packs for snacks, and deep-freeze liners. Customers who print graphically intense logos rely on high-gloss, low-haze surfaces, which means masterbatch disperses evenly. Our own pigment compatibility checks prove color consistency holds, lot after lot, especially under thin-draw conditions near 15 microns. Flexible printed film for snacks or personal care also favors this grade, as there’s little wrinkling with rapid draw off high-speed lines.
We see increasing adoption in electrical insulation films, too. Customers in this sector want dielectric strength and minimal gel counts to avoid punctures or shorting. Since LDPE 2420H maintains a narrow quality window, film lamination lines run with less waste. Tech support visits often involve trouble-shooting conversions from older grades, and we typically find that a switch to 2420H cuts downtime and sheet defects by double-digit percentages.
Agricultural mulch films and greenhouse wraps make up another robust market, especially in climates demanding UV stabilization. The surface smoothness of 2420H means these films repel soil and particulate buildup, which reduces field maintenance. Manufacturers have to balance film thickness, edge tear resistance, and clarity for sunlight penetration; our process control keeps these specs repeatable within tight tolerances. Final film output wins back labor costs from fewer roll changes and less misfeed on laying machines.
Medical and hygiene packaging presents high bar for melt cleanliness and off-taste. Several large converters run trial lots every year for glove wrap, wound-care covers, and diaper backsheet film, comparing resin purity and melt flow against imported alternatives. Laboratory tests repeatedly favor 2420H for extractables and volatility trace, which cuts risk of contamination. Production managers report easier FDA and EU food/medical migration approvals, thanks to our strict QA documented for each lot.
Having held responsibility for batch consistency on the reactor floor, our operations crew keeps a shortlist of real-world issues plaguing film producers. Over-branching leads to bubble instability and excessive neck-in. Under-branching can create brittle films and unpredictable gauge control. To get the correct balance, our process chemists fine-tune the initiator profile; even half-degree Celsius reactor shifts can change the molecular structure. We run “canary” extruder lines for small-lot experimental blends. These trials let us catch off-character melt before a single pellet enters commercial silos.
Quality monitoring beats theoretical specification alone. Every lot passes through laser particle counters and DSC melt curve analysis before shipping. We review each customer’s process—screw geometry, backpressure, output speed—to adjust inbound logistics and meet cycle needs. Our plant technicians talk directly with converter teams, walking them through first-run adjustments: temperature setpoints, back pressure, and screw RPM to optimize for 2420H’s melt profile. A hands-on approach keeps converters ahead of typical resin problems like die-lip buildup or web tracking.
The physical appearance tells its own story: clean, white, rounded pellets pour without sticking, even on humid days. Not every import or re-blend achieves this, which we’ve seen through partner feedback. Storage silos and conveying lines need less cleaning since 2420H sheds powder, and the bagging lines at our shipping docks use antistatic protocols so product flows freely.
Years in manufacturing taught us real-life costs show up at the extruder head—not just in resin price, but in downtime, scrap rates, and repair cycles. Fluctuating feedstock quality, contamination, and climate swings affect operating lines daily. So we keep polymer plants near major ethylene sources, tighten filtration, and invest in continuous pellet screening. Upstream, our teams monitor reactor fouling and perform scheduled shut-downs to keep reactors clear and results consistent.
Raw material volatility, due to geopolitics or force majeure events, challenges our planners every year. Our logistics staff diversify shipping and storage options across inland and coastal terminals, so order fill rates stay high. Keeping an eye on world market trends—demand spikes in Asia, export changes out of the Middle East—gives us room to adjust batch sizes. We keep several weeks’ advanced stock for priority customers running tightly-scheduled lines.
Traceability has grown in priority for many buyers, especially under food and medical regulations. Our plants deploy digital tags at every silo, and customers can backtrack a finished film roll’s contents to a shift and reactor ID within minutes. Any issue reported—unusual odor, burn marks, off-color pellets—feeds directly into a root-cause investigation and update for future runs. We further invest in staff training to maintain vigilance, giving every frontline operator a stake in long-term quality.
Producers face mounting demand for both process sustainability and energy-use efficiency. Our development chemists work on catalyst systems with lower emissions and reduced water consumption, so batch environmental impact stays low. Purification steps improve resin cleanliness, decreasing waste at customer sites. The durable, puncture-resistant character of 2420H enables end-users to down-gauge film wherever possible. Fewer resources go into transporting and handling thinner, lighter product, lowering the environmental and operational footprint.
Our closed-loop recycling system collects production edge trim and off-grade material directly at the site. Trained staff sort and reprocess this material with strict color and mechanical criteria, directing it into compatible downstream grades. That investment means we keep well under the industry average for landfill or incineration losses. Our customers report increased recycled resin usage without compromising product performance, in line with end-market requirements for post-consumer content.
For downstream extrusion, Sinopec LDPE 2420H’s low gel count and predictability let processors run automated blending with higher rates of recycled content, maintaining seal integrity and softness. We also work with additive and masterbatch suppliers to ensure compatibility with bio-based slip, antiblock, and antifogging agents, so packaged goods stay fresh and shelf-stable without off-taste or odor. These upgrades—based on field feedback—keep customers aligned with evolving retail and regulatory expectations.
We maintain a regular dialogue with film converters, bag makers, and packaging OEMs. The consistent feedback about LDPE 2420H: line operators see fewer unexpected breakdowns on multi-line installations. Scrap piles drop since edge breaks and burn marks decrease with this resin. Maintenance chiefs report that gear wear slows down because of the pellet’s streamlined melt. Customers switching from generic or imported LDPE often find the learning curve short, as their heat profile and die-pressures transfer quickly to this grade.
Repeated field audits reinforce two priorities: stable bubble size under shifting cooling and backpressure, and repeatable gauge with minimal neck-in. Films don’t sag, stick, or fold improperly when winds or HVAC drafts buffet extrusion halls. Our regional engineers run side-by-side trials of 2420H against locally-available alternatives, documenting downtime, waste, and print register consistency. These practical benchmarks translate to direct labor and resin savings at the plant level, boosting both output and profitability.
One converter segment stands out in feedback: industrial bag producers. They prefer LDPE 2420H not only for impact strength, but also for clarity and seal response. Unlike some metallocene-catalyzed alternatives, our grade balances slip properties for line automation and stacking, simplifying secondary packaging and transit without adhesive slip sheets.
As film and packaging standards keep rising, processors confront tighter quality requirements. Smaller lot sizes, custom film thickness, and complex multicolor prints test the limits of every film grade. LDPE 2420H remains in development cycles at Sinopec because operators, machine builders, and packaging designers want consistent, “trouble-free” resin. Every year, lab and production teams take customer suggestions from shop floors and R&D meetings, using them to fine-tune batch precision and downstream handling.
Our view across hundreds of extrusion halls, multiple climates, and wide-ranging converter technologies allows us to serve customers with practical, lived insight into their line needs. Sinopec LDPE 2420H bears the mark of decades of process control and partnerships with people whose profits depend on predictable, clean, and tough resin. We stand behind each lot shipped, knowing that every pellet packs a history of process discipline and customer-driven innovation.
