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Anhui Liwei Chemical Co., Limited.

EVA Stretch & Shrink Film Grade

    • Product Name: EVA Stretch & Shrink Film Grade
    • Chemical Name (IUPAC): Poly(ethylene-co-vinyl acetate)
    • CAS No.: 24937-78-8
    • Chemical Formula: (C2H4)x(C4H6O2)y
    • Form/Physical State: Granule
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: sales3@liwei-chem.com
    • Manufacturer: Anhui Liwei Chemical Co., Limited.
    • CONTACT NOW
    Specifications
    HS Code 316484
    Material Ethylene Vinyl Acetate (EVA)
    Application Stretch and shrink film
    Density 0.92–0.94 g/cm³
    Melt Flow Index 1–5 g/10 min (190°C/2.16kg)
    Vinyl Acetate Content 5–28%
    Tensile Strength 10–20 MPa
    Elongation At Break 400–800%
    Clarity High transparency
    Sealability Excellent heat seal strength
    Shrinkage 50–70% (depending on formulation)
    Flexibility High flexibility at low temperatures
    Tear Resistance Good
    Processability Suited to blown and cast film extrusion
    Odor Low
    Chemical Resistance Moderate

    As an accredited EVA Stretch & Shrink Film Grade factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The packaging for EVA Stretch & Shrink Film Grade contains 25 kg per bag, white woven sack with clear product labeling and safety information.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for EVA Stretch & Shrink Film Grade: Typically accommodates 16–17 tons packed in 25kg bags, palletized or loose.
    Shipping EVA Stretch & Shrink Film Grade is shipped in tightly sealed, moisture-proof packaging, typically in 25 kg bags or bulk containers. It should be stored in a cool, dry area, away from direct sunlight and ignition sources. During transport, ensure containers remain undamaged to prevent contamination or spillage.
    Storage **EVA Stretch & Shrink Film Grade** should be stored in a cool, dry, and well-ventilated area, protected from direct sunlight, heat sources, and moisture. Keep the material in its original, tightly sealed packaging to prevent contamination and degradation. Avoid exposure to strong oxidizing agents and store away from incompatible substances to ensure product stability and safety.
    Shelf Life EVA Stretch & Shrink Film Grade typically has a shelf life of 12 months when stored in cool, dry, and shaded conditions.
    Application of EVA Stretch & Shrink Film Grade

    Applications of EVA Stretch & Shrink Film Grade in Industrial Manufacturing

    Based on decades of technical manufacturing experience, our EVA stretch & shrink film grade resin supports a range of specialized downstream applications across industrial packaging and related sectors. Leveraging precise formulation and compositional control, we supply global converters and brand owners with reliable feedstock that meets strict safety, mechanical, and processing requirements at scale. The following scenarios illustrate major real-world downstream usage, industrial integration, and regulatory frameworks.

    1. Food Packaging Shrink Films

    Leading food and beverage converters utilize our film-grade resin in the production of shrink sleeves, overwraps, and bundling films for direct and secondary food contact applications. The material enables exceptional elasticity, puncture strength, and heat sealing, critical for automated wrapping of irregular-shaped goods, multipacks, and trays. As an input for blown and cast film processes, EVA content significantly impacts the final packaging’s shrink ratio, clarity, and migration compliance. Our technical service regularly collaborates in qualification trials to optimize resin loading based on printability, machinability, and regulatory clearances demanded by major food brands.

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    2. Pharma and Medical Device Packaging Films

    The pharmaceutical sector incorporates EVA film grades for the production of secondary packaging, blister pack overwraps, and tamper-evident sleeves for medical devices and diagnostics. The material’s compatibility with sterilization methods, excellent transparency, and superior puncture resistance provide reliable barrier integrity and safety compliance. Our resin’s low extractables and leachables profile supports stringent risk management in sterile and high-purity packaging lines, while allowing strong seal strength on both horizontal and vertical form-fill-seal (FFS) equipment.

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    3. Industrial Pallet Stretch Hooding Films

    Palletizing and logistics operations in the building materials, chemicals, and beverages industries require heavy-duty stretch hooding films to secure loads during storage and shipment. EVA copolymer enhances film stretchability, tear propagation resistance, and low-temperature flexibility, reducing film breakage and load failure incidents on automated wrapping lines. Our formulation experts work closely with packaging engineers to achieve precise modulus and elongation profiles suited to various pallet geometries and climatic conditions, while maintaining compliance with supply chain safety protocols.

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    4. Consumer Electronics Protective Packaging

    Manufacturers of consumer electronics rely on advanced shrink films in forming robust, anti-static, and dust-free protective wraps for items such as smartphones, tablets, and home appliances. EVA resin improves sealing, optical clarity, and mitigates stress whitening during rapid shrink cycles, ensuring finished goods retain pristine surface aesthetics and electrical insulation. Precise formulation ensures compatibility with common anti-fog, antistatic, and UV stabilizer additives needed for demanding OEM packaging lines under high-throughput conditions.

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    5. Beverage Multipack Film Wrapping

    Beverage bottlers deploy EVA-modified shrink films for efficiently wrapping multi-can and multi-bottle packs as well as for tamper evidence and promotional bundling. The material enables controlled shrinkage, high yield per roll, and print quality for branding elements. Our grade supports high-speed wrapping and tunnel shrink lines, balancing machine direction/ cross direction shrink properties crucial for pack integrity and consumer appeal. Formulation support includes optimizing resin ratio for automated stacking, perforation, and tear line formation in downstream conversion.

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    6. Stationery and Print Media Packaging Films

    Producers of stationery, printed books, and periodicals selectively incorporate EVA-based shrink wraps to maintain product quality, prevent dust ingress, and provide tamper-resistant retail presentation. The controlled shrink force prevents deformation of paper goods while enhancing the clarity and gloss of shelf-ready items. Our formulations focus on anti-blocking, slip modification, and stability under high-speed inline wrapping units typically found in commercial print converting operations.

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    Free Quote

    Competitive EVA Stretch & Shrink Film Grade prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please contact us at +8615365186327 or mail to sales3@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: sales3@liwei-chem.com

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    Certification & Compliance
    More Introduction

    EVA Stretch & Shrink Film Grade: Reliable Performance from a Manufacturer’s Point of View

    Pushing Film Production Further with EVA

    For years at our production plant, we’ve poured thousands of tons of raw ethylene and vinyl acetate through reactors, dialed in extrusion lines, and spent long days troubleshooting extruders. Applications in film manufacturing always land at the top of the list among our customers, and for good reason: packaging demands continue to climb, whether protecting palletized goods from moisture or keeping perishable items clean and organized. Through experience, EVA (ethylene-vinyl acetate) copolymer remains a workhorse for stretch and shrink films, but not every grade performs the same. Over time, we've seen how careful tweaking of VA content and melt flow rate makes all the difference between smooth production and frustrating setbacks on the shop floor.

    What Sets Stretch and Shrink Films Apart

    The first thing we look at is the way EVA’s vinyl acetate content changes the final film’s toughness, stretchability, and clarity. For stretch film, which must wrap loads tightly and endure pulling, a blend with moderate VA content (often 7-12%) offers a sweet spot: strong enough to resist tearing, soft enough to stretch without snapping. Melt flow index (MFI) also comes into play. Higher MFI supports fast, consistent runs on modern cast film lines, especially the multi-layer extruders found in packaging plants today.

    Shrink film grades benefit from higher clarity and a balanced flexibility. Requiring less force to shrink and yielding a crisp, transparent appearance, the targeted VA content often swings higher than that in stretch film — without going so far that film turns gummy or loses machineability. We’ve watched clients battle blocked reels and snapped films before coming to the right VA-to-ethylene ratio, and our lab technicians spend endless cycles testing heat shrink performance using infrared tunnels and wrap ovens. The aim: a tight package, no fish-eyes, strong seals. Results depend on smart copolymer design.

    Reliable Processing — Not Just on Paper

    There are days when the lines run with hardly a blip, and moments when a line operator rings to report streaks, gels, or severe die buildup. Much of this boils down to the quality and consistency in the base EVA copolymer. An EVA that’s tailored for stretch and shrink films keeps resin pellets free-flowing, allows for easy extrusion, and won’t foul your filter packs. Waste drops, productivity jumps — it’s a visible boost. Our customers appreciate clear, bubble-free rolls, uniform gauge, and smooth windup. Compatible formulation means less tweaking for additives or lubricants, which saves actual time and headache.

    With EVA grades meant just for film, gel count usually sinks well below ten per hundred square inch, and we keep yellowness index low. For food-safe films — used on bakery, produce, and frozen products — we batch EVA with strictly food-contact compliant catalysts and process aids. No compromise on purity, and without nasty odor that can develop when lesser grades sneak into film lines.

    Heavy-Duty Logistics and Real-World Protection

    Right now, warehouse operators and logistics coordinators count on shrink and stretch films to protect palletized loads during rough transport. EVA brings strong cling, holds tightly at corners and edges, endures industrial tape guns and automated wrapping arms. Films with the correct grade spring back from knocks and won't tear easily around sharp box edges, allowing fewer film breaks and less need for on-the-spot repairs. Lower VA-content grades stay tough in unheated supply yards — a clear advantage for export shipments heading across oceans or through drastic temperature swings.

    Our customers handling food products push for films that won’t transmit odors or off-tastes. EVA sets itself apart here, especially with medical-grade monomers and precision extrusion — a must for compliance with stricter regulations in major exporting regions. The low sealing temperature characteristic of EVA helps with energy efficiency; heat tunnels operate at lower set points, cutting costs during large-volume packaging runs.

    Compatibility with Additives and Coextrusion Technology

    Many film converters have shifted to coextruded multi-layer films, chasing cost savings and special performance characteristics: anti-fog, anti-static, barrier properties. EVA stretch and shrink grades blend readily with PE, PP, and even nylon. Our R&D trials confirm, in multi-layer structures, EVA’s polarity and flexibility lead to tight interlayer adhesion — reducing delamination on high-speed lines and maximizing film integrity at thin gauges.

    We keep hearing about evolving requirements for packaging: higher puncture resistance, longer shelf life, and environmental compliance. By adjusting the EVA copolymer backbone, either increasing VA content or fine-tuning molecular weight, our film-grade products consistently blend with masterbatch for custom colors or anti-block agents. It improves the shelf printability, brings gloss and smooth feel, whether you’re punching pre-printed logos or running clear wraps on auto-packers.

    Key Differences from General-Purpose EVA

    We see questions every season about why not use standard EVA, or even just PE, for all film applications. Here's where hard-earned plant knowledge proves the difference. Regular EVA, often marketed as a jack-of-all-trades, rarely handles the narrow temperature windows, gauge tolerance, and optical requirements needed for top-tier stretch and shrink film. Dense, amorphous resins meant for hot-melt adhesives can make a film cloudy, sticky, or susceptible to thermal instability.

    To avoid cost overruns and complaints, we focus on batch consistency and tight spec: targeting VA content, MFI, density, and gel count without cutting corners. Properties like high tear propagation resistance and fast sealing response depend on this. Film grade EVA brings a transparency only matched by high-density resins, yet delivers the flexibility needed in hand and machine wraps.

    Film companies attempting to substitute general-purpose grades see more frequent line changes, higher rates of defective product, and problematic windup, especially on thin films below 15 microns. Stretch and shrink film grades, in contrast, run clean across commercial blown and cast film lines, yield reels that don’t telescope, and keep end users happy. Our engineers work side-by-side with line operators to support line trials and help troubleshoot new machinery setups — this just isn’t possible with grades aimed at the broader polymer market.

    Advantages in Industrial and Consumer Packaging

    On the shop floor or among distribution centers, keeping pallet loads stable ensures products arrive intact, saves time on re-wrapping, and prevents inventory loss. Retailers and food packagers benefit from films with low haze and controlled shrink — produce stays vivid and protected, packages look sharper on display. EVA’s resilience makes it a dependable choice across different climates; shrink films with higher VA won’t turn brittle in cold storage, and stretch films resist sagging even in humid warehouses.

    We supply EVA film grades in a range of melt indexes, but always steer customers toward what works best for their specific machinery: ultra-low melt index supports thicker, heavy-duty films for export; moderate to higher melt index is leaner for rapid lines running thinner gauges intended for modern automated packagers. Counting dozens of lines running our grades, we tracked an average 20% increase in film throughput, with measurable reductions in both scrap rates and complaints about stuck reels.

    Our operational experience highlights the enormous difference in downtime between using certified film-grade EVA and generic brands. Blocked dies, filter changes, and on-the-fly formulation adjustments cost both labor and lost output, sinking overall plant efficiency. Down the chain, retailers notice product clarity and seal strength before giving repeat business. For food-grade film, regulatory compliance isn’t rhetorical — every batch comes with traceable sourcing, and we ensure documentation matches export requirements for North America, Europe, and Asia.

    Sustainability and Evolving Use Cases

    Sustainable packaging stands as a key topic among converters, brand owners, and downstream users. We test recycling compatibility, measuring how our EVA blends with recycled LLDPE and post-consumer resins without causing fish-eye issues or electrical breakdown on auto-wrapper packaging lines. Where compostable films gain traction, we provide lab support for customers exploring hybrid blends, aiming to boost strength without raising costs or jeopardizing transparency.

    EVA film grades help meet target reduction of thick, heavyweight wraps. Multinationals using our film grade EVA report up to 15% lower average film usage per pallet, especially important as regulations on plastic waste keep tightening. Lower sealing temperatures mean packaging plants burn less energy; operators cutting line temperature by even 10°C report direct savings on their utility budgets during peak production.

    Making true strides in sustainability comes from collaboration — we field research teams that support clients in conducting life cycle analysis, tracking emissions, and seeking out end-of-life solutions for their finished films. Technical liaison between our compounding R&D and downstream reprocessors provides real-world performance feedback. Balancing requirements for clarity, toughness, and compliance remains complicated, but the right copolymer unlocks most of the gains converters need to stay competitive.

    Improved Sealing, Better Yields, Fewer Complaints

    Packaging operators, particularly on lines built for high-volume consumer goods, focus on throughput and minimal maintenance. EVA grades tuned specifically for stretch and shrink film allow them to run at faster speeds without jamming or wasting material. In our in-house trials, improved seal-ability at lower temperatures allowed for higher pack counts per shift and fewer roll changes.

    Film repairs and package rejection — two classic headaches — drop steeply with proper EVA selection. Customers who formerly dealt with loose or failed shrink wraps on frozen and refrigerated foods report greater confidence after switching to resin with tight grade control. Our insights come from direct data: lines producing over half a million rolls a year reporting fewer than three roll failures per month, a result not seen with generic EVA.

    Whether in warehouses or supermarkets, the see-through clarity and reliable holding force of our shrink and stretch films keep clients coming back for repeat contracts. We prioritize direct customer support: many of our technical field agents have managed film lines themselves, so they know exactly what bottlenecks arise in real operations.

    We’ve Walked the Lines: Manufacturer Experience Matters

    Decades spent fine-tuning compounding recipes and analyzing trial results taught us how much specifications affect daily production. Mistakes in grade selection lead to chaos on the film lines: blocked dies, buildup in filter screens, or poor bubble formation means unnecessary downtime. Direct experience taught our R&D teams to refuse shortcutting the polymerization process, and to keep full data logs on batch variations so clients can pinpoint changes before they cause production stops.

    We’ve had firsthand calls from packaging plants shipping goods worldwide, each with unique requirements. The only sound approach involves detailed coordination between our grade selection and the customer's machinery setup. Routine shipments by truck, rail, and sea have sharpened our approach: every pallet of film-grade resin leaving our facility carries traceable data and tight variance checks on melt index and vinyl acetate content.

    Looking Ahead in Stretch and Shrink Film

    Future packaging challenges will keep raising the bar on performance, recyclability, and cost reduction. We invest heavily in analytical equipment, from FTIR to automated MFI testers, to monitor every batch and advance our grades for tomorrow’s high-throughput lines. Partnerships with machinery suppliers ensure our film grades integrate seamlessly with the latest winding and wrapping equipment.

    From protecting electronics to keeping fruit fresher in global supply chains, our EVA stretch and shrink film grades answer modern packaging needs while supporting long-term sustainability goals. The edge lies in understanding details — not just formulas and specifications, but actual day-to-day production challenges. Good resin choice means fewer complaints, longer-run efficiency, and higher downstream satisfaction. Our manufacturing approach follows those principles daily, with lasting results in end-user performance and plant profitability.

    Insights for Industry Partners

    Manufacturing EVA stretch and shrink film grade isn’t about hitting arbitrary targets — it’s about supporting real people producing real goods: packagers, line operators, warehouse managers, and logistics teams who rely on solid, consistent polymer performance to keep supply chains moving. We stake our reputation on each batch, and stay honest with customers about what our product can and cannot do. No shortcut or generic approach delivers the same reliability as grades built specifically for stretch and shrink film.

    Problems encountered with wrong resin type ripple down the line: jams, increased waste, lost revenue, and unhappy customers. By listening to the market and working with packagers, our team drives improvements that matter: lower block rate, better machineability, tight gauge control, and controlled shrink tension. The difference shows up in smoother production, less downtime, and in the crisp, protective wrapping that reaches retailers and consumers across the globe.

    From the first pellets leaving our reactor to the finished film wrapped on pallets, practical experience guides each decision. Decades in the field reinforced the value of specialized, well-controlled production — not just for our bottom line, but for all partners relying on reliable, efficient, and sustainable packaging film. EVA stretch and shrink film grades, produced with these values, continue to make a measurable difference for our customers and their customers worldwide.