|
HS Code |
575798 |
| Product Name | Kunlun LDPE 2420D |
| Manufacturer | PetroChina |
| Type | Low Density Polyethylene (LDPE) |
| Melt Flow Index | 2.0 g/10min (190°C/2.16kg) |
| Density | 0.924 g/cm³ |
| Tensile Strength | 10 MPa |
| Elongation At Break | 400% |
| Flexural Modulus | 220 MPa |
| Vicat Softening Point | 93°C |
| Processing Method | Film Blowing |
| Application | Packaging film |
As an accredited Kunlun LDPE 2420D factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Kunlun LDPE 2420D is packaged in 25kg white plastic bags, featuring red and black labeling with product details and safety information. |
| Shipping | Kunlun LDPE 2420D is typically shipped in 25 kg polyethylene bags, securely sealed to prevent contamination and moisture ingress. Bags are stacked on pallets and shrink-wrapped for added protection. Larger quantities may be supplied in bulk containers. Shipping complies with standard chemical handling and safety regulations. |
| Storage | Kunlun LDPE 2420D should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials. Keep containers tightly sealed to prevent contamination. Avoid exposure to strong oxidizing agents. Ensure proper labeling and avoid stacking heavy loads to prevent deformation. Regularly inspect storage conditions to maintain product quality and safety. |
Applications of Kunlun LDPE 2420D in Industrial ManufacturingKunlun LDPE 2420D is formulated for downstream conversion in varied industrial sectors requiring controlled density and flexibility. Our grade integrates reliably in processes where regulatory adherence, precise formulation, and specific end-use performance are mandatory. Below, we detail principal application scenarios verified by customer adoption across established manufacturing industries. 1. Food-Grade Flexible Packaging FilmsThis LDPE grade sees primary usage in high-clarity, sealable food packaging films for direct food contact. Producers select it for its clean polymer matrix and excellent process stability under multilayer coextrusion conditions. The material supports film stretching, heat sealing, and lamination cycles while conferring safe organoleptic properties. Regulatory compliance remains pivotal throughout formulation, from resin sourcing to final product monitoring. Industry compliance standards
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2. Medical Device PackagingHealthcare extruders utilize this LDPE material for manufacturing sterile medical packaging, where puncture resistance, barrier reliability, and non-leaching properties are needed for regulatory approval. Its particle cleanliness and low extractables profile allow for safe direct contact with medical devices, instruments, and pharmaceuticals during storage and transport. Industry compliance standards
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3. Wire and Cable Insulation SheathingElectrical cable manufacturers employ this LDPE resin for its balance of insulation strength, elongation, and ease of extrusion. Its smooth melt flow enables efficient sheathing over copper or aluminum conductors, providing consistent dielectric properties for LV and communication cables. Due to safety mandates, the use of our polymer focuses on regulated sectors only, including energy and telecom. Industry compliance standards
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4. Shrink Film for Industrial PackagingConverters leverage this grade for high-performance shrink films used in pallet wrapping, bundling of consumer goods, and securement of industrial items. The resin’s molecular structure supports strong shrinkage and hold force, even at lower thicknesses, resulting in consistent shrink tension and visual clarity. This application prioritizes reliable load stability and damage prevention during logistics and storage operations. Industry compliance standards
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5. Injection Molded Consumer GoodsThis material supports the production of soft-touch, flexible consumer products through injection molding routes. Processors select it for defined flexibility, surface finish, and dimensional repeatability essential to finished articles such as lids, caps, and low-rigidity handles. Its melt flow allows rapid filling and demolding, minimizing sink marks and internal stresses in final parts. Industry compliance standards
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6. Agricultural Film ProductionProfessional agricultural film extrusion plants employ this LDPE for greenhouse covers, mulching films, and tunnel films, drawn by its UV resistance and process consistency under wide extrusion conditions. The polymer’s inherent flexibility helps adapt film to soil or structural surfaces, while field exposure performance meets region-specific agricultural standards. Industry compliance standards
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Competitive Kunlun LDPE 2420D prices that fit your budget—flexible terms and customized quotes for every order.
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In the real world of polymer manufacturing, what counts is not just what’s written on the spec sheet, but how a material answers to the daily push and pull of production. Kunlun LDPE 2420D shows its strengths right on the factory floor, and that’s what keeps our teams coming back to it for demanding projects. We work this grade in our own reactors, monitor the polymer chains from start to finish, and know by experience how it handles in extrusion, molding, and blowing operations.
Model 2420D is built for low density polyethylene film manufacturing, covering a spectrum from general-purpose films through to packaging layers. In our plant, 2420D has a clean record when it comes to extrusion consistency, roll uniformity, and gauge control. The balance between melt flow and mechanical strength stands out right away. For processors running blown film lines at medium speeds, 2420D moves through the die head with minimal die build-up and keeps gels and fisheyes low, which saves costly downtime and scrap.
We’ve pushed batches of 2420D through lines making both mono-layer and co-extruded films, and in both cases, the balance of puncture resistance and flexibility holds up. Our hands-on data over years of production gives a reliable feel for how this material stretches and recovers, especially for bags, liners, and protective wraps. You can load up 2420D for thicker construction film, bagging, or agricultural films, and it responds with fine draw-down even at low gauges. The details matter—clarity and gloss stay consistent from lot to lot, and end users have recognized its ability to deliver crisp print surfaces without the over-greasy slip sometimes seen in cheaper LDPE grades.
The melt flow index—or MFI—of 2420D fits into a sweet range for handling both blown and cast processes without having to fine-tune temperatures or shear rates constantly. This means less fiddling with line settings and more time hitting production targets. The density sits right where it needs to for maintaining clarity in thinner films, and the impact resistance isn’t just lab-measured—it’s what we see reflected in the customer returns and quality complaints, which have stayed at a minimum for production runs based on this grade.
In our mixing rooms, pellet uniformity and the absence of fines give an even feed, preventing clogs and feed screw wear that plague inferior runs. We’ve put 2420D up against other LDPE lots, both domestic and imported, and time after time, the product pulls through with fewer off-spec rolls, making for smoother converting and sealing later down the supply chain.
Our teams have found that 2420D listens well to blend adjustments. You can pair it up with LLDPE or specialty masterbatches for modified performance, and it takes in color concentrates without streaking. We use it as a base layer for multi-layer films where heat sealing is critical, and its seal integrity helps avoid leakers, a headache that hits profit margins straight away. In co-ex applications, the resin’s flexibility keeps lamination peel strength up, preventing failures in packaging.
Another practical benefit lies in machine clean-up and resin changeovers. 2420D doesn’t cling to screws and barrels the way some lower-purity grades do, which means switching product lines is faster and raw material waste drops. Operators have noted reduced smoke and odor during high-temperature runs, reflecting tighter control of volatiles from the reactor step onward.
At the core of any responsible chemical production, waste matters. LDPE 2420D shows significant regrind compatibility, fitting the needs of manufacturers running post-industrial recycling programs. We’ve re-extruded scrap trims and in-house rejects with 2420D as the primary feedstock, maintaining mechanical properties above the minimums for new film. This reduces landfill output and gets more value from each pellet made. For post-consumer recycling, the product’s high cleanliness and low odor help ensure better acceptance at recovery lines, with fewer contaminant and sorting issues.
We also pay attention to how additives interact. Because Kunlun 2420D is made to high purity, slip and antiblock packages mix well, helping our industrial buyers cut down on secondary costs tied to film separation and bag opening force. For large-volume bag houses and tarp manufacturers, this translates not just to process efficiency but also lower worker fatigue during bag separation or packaging.
The biggest demand we see for 2420D comes from packaging converters working on moisture barrier films, grocery sacks, and industrial liners. These clients don’t have time for brittle films or products that tear at the wrong moment. Having worked directly with their teams, we know 2420D allows for either higher blending of recycled content or thinner down-gauging without crossing the line on puncture or dart drop strength.
Food-safe batches have consistently complied with regulatory thresholds for heavy metals and extractables. We run routine third-party and in-house lab checks, not just for paperwork compliance, but to be sure the resin doesn’t throw up surprises during migration testing. A clean migration profile also helps when converters switch to FDA or food-compliant export business, where supply chains show little tolerance for substitution or guesswork.
Another area where 2420D shows its value is in shrink film production. Film bubble stability can make or break a run. Our technical staff has worked through night shifts stabilizing lines, and batches of Kunlun 2420D have helped keep output rolling through the toughest weeks of peak season. The resin responds well to thinner gauge requirements for secondary overwraps, offering strong shrink tension and no crimping on the edges, a key detail for products winding through high-speed packing lines.
Having poured over dozens of LDPE data sheets and watched resin after resin move through our granule stockers and bagging lines, what always stands out with 2420D is the batch-to-batch predictability. Unlike more generic LDPE that often drifts in melt index or comes in with contaminants, 2420D offers fewer surprises. The consistency keeps line speeds up and reduces unplanned maintenance.
Some imported LDPE aims to squeeze out price advantage by sacrificing a clean pellet cut, or by mixing in reprocessed material to hit lower costs. This might look fine at first pass, but in production, the blend runs dirty, sticks to hot spots in the extruder, and leaves too many inclusions in the finished roll. By contrast, 2420D’s purity comes through in clean, low-dust pellet shipments and minimum surface blemishes on the produced film. This not only helps in critical print and food wrap applications, but also lowers die maintenance costs and downtime.
For blow molding, some grades show promise in catalogs but tend to bloom out stickiness during extended high-temperature runs. 2420D keeps its processing window wide, with less tack or screw slip, which matters on longer production cycles. We have compared this directly—running both our standard lines and experimental blends—and 2420D gave more output hours per cleaning cycle compared to competitors.
In practice, LDPE 2420D continues to stand up to market shifts and production realignments. Through economic downturns and supply chain interruptions, the material keeps delivering. In the pandemic period, when import streams slowed, we shifted more local orders towards 2420D and were able to maintain production targets without sacrificing roll conversion rates or sealing metrics. The supply network supported shipments even during critical shortages, thanks to established relationships and steady domestic outflow of the finished product.
We’ve also supported new packaging designs and fast-response projects with this grade. In one case, a customer faced an urgent order for industrial sheeting with unusually strict tear and elongation parameters. By working with our reactor team to tune process conditions, we tweaked the resin’s crystallinity and extrusion temperatures to hit both the clarity and toughness targets in short order. This sort of rapid adaptation only works when the base polymer offers a reliable and well-understood backbone—which 2420D provides.
The real test of any resin goes beyond just numbers. Our safety review crew checks every new lot for fumes and by-products during the extrusion start-up. With 2420D, minimal fume generation translates into better air quality and reduced reports of operator complaints. This is vital in our production halls, where exposure long-term could otherwise become a problem. Routine checks show that emitted volatiles stay far below occupational limits, giving us confidence in using this grade throughout extended shifts.
Machine wear factors into long-run economics. Engaging directly with maintenance teams, we’ve noticed fewer screw replacements, cleaner filter screens, and longer run intervals between stops when running 2420D. These hard-earned savings show up in production cost breakdowns every quarter. We choose products not only for immediate yield but for the wear they inflict, and 2420D ranks high on that scorecard.
Sustainability targets push us to source raw materials we can stand behind. We work with suppliers and logistics partners who track each batch from raw ethylene input through granulation. Traceability gives customers confidence, especially those exporting medical packaging or food-contact materials. 2420D’s compliance record extends to our tracking system, ensuring each order links back to its production batch, testing parameters, and shipping checklist.
Beyond regulatory compliance, 2420D offers a lifecycle advantage. We’ve tested the product in closed-loop scrap collection scenarios, running edge trims and floor waste back into primary film lines with very little loss in strength or elasticity. The result is less product going out to landfill and stronger alignment with sustainability commitments that customers are demanding year after year.
New customers usually ask about how 2420D fits with their planned upgrades or major projects. From our side, we’ve proven it out in new, high-speed lines designed for thinner film and aggressive blends. Whether your shop is set up for traditional single-layer extrusion or moving into coex laminates, the transition to 2420D involves minimal learning curve, backed up by support from our technical team.
Food-contact safety remains front of mind for brand owners. We handle QA support directly, saving customers from the frustration of chasing overseas certs or waiting on translated documents. The resin’s steady composition leads to easier clearances when auditors come through, and fewer headaches in batch validation runs.
Plenty of resins talk a big game about performance, but our experience comes from managing hundreds of metric tons in active production, not just bench-top testing. Kunlun LDPE 2420D delivers where production schedules count, saving on downtime, maintenance, and quality claims. Its processability makes sense for converters chasing higher productivity without trading away end-use strength. We’ve seen this both in our own lines and in customer facilities that share feedback.
In summary, choosing a resin isn’t just about picking specs—it's about operating confidence, repeatability, safety, and the certainty that a batch ordered today will work as well as one ordered months ago. That kind of peace of mind separates Kunlun LDPE 2420D from short-lot imports or inconsistent generics. As a manufacturer who runs this product day in, day out, the value sits front and center every time a line starts up and keeps running smooth through another shift.
