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Safeguard Metal Assets with Precision: VCI Stretch Film for Industrial Excellence
In demanding environments where corrosion threatens metal integrity, VCI Stretch Film (Volatile Corrosion Inhibitor Film) delivers a proactive defense. This advanced packaging solution seamlessly combines the physical durability of industrial-grade polyethylene with intelligent vapor-phase technology.

Why Choose Our VCI Stretch Film?
Targeted Protection: The film releases microscopic VCI molecules (2-3 layers thick) that actively bond to metal surfaces, neutralizing moisture, salts, and airborne contaminants – even in extreme humidity or salt spray conditions (ASTM G85 Certified).
Visibility Meets Security: Engineered with signature transparent blue tint for instant visual inspection without unwrapping, reducing handling errors in logistics.
Compliance-Driven: Exceeds MIL-PRF-3420H standards for military-grade reliability and RoHS compliance for eco-sensitive operations.
Beyond Film: Extend protection with our complementary VCI Shrink Wrap (moisture-tight sealing) and VCI Sheeting (large component coverage).

For Industries That Demand Zero Compromise
Automotive manufacturers, aerospace suppliers, and global exporters trust our film to eliminate costly corrosion-related rejects during long-term storage or overseas shipping.

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How VCI Stretch Film Protect Metals from Rust and Corrosion

VCI (Volatile Corrosion Inhibitor) Stretch Film safeguards metals through a combination of chemical inhibition and physical barrier properties. Here’s a step-by-step breakdown of its protective mechanism:

VCI Molecule Release

  • Volatilization:
    The film is infused with corrosion-inhibiting compounds (e.g., amines, nitrites, or organic salts). At room temperature, these compounds slowly vaporize, releasing gaseous VCI molecules into the enclosed packaging space.

  • Uniform Dispersion:
    The vaporized molecules spread evenly, penetrating crevices and hard-to-reach areas, ensuring complete coverage of all metal surfaces—even without direct contact.

Formation of a Protective Molecular Layer

  • Adsorption:
    VCI molecules are attracted to the metal surface due to electrostatic forces. They form an ultra-thin, invisible layer (2–3 molecules thick) that bonds tightly to the metal.

  • Passivation:
    The adsorbed molecules alter the electrochemical reactions that cause corrosion:

    • Anodic Inhibition: Block the oxidation (loss of electrons) of metal atoms, preventing dissolution.

    • Cathodic Inhibition: Suppress oxygen and moisture reduction (gain of electrons), halting rust formation.

Barrier Against Environmental Threats

  • Moisture Blocking:
    The hydrophobic molecular layer repels water, preventing electrolyte formation (a key driver of corrosion).

  • Oxygen Deprivation:
    The film’s tight wrap limits air circulation, reducing oxygen availability for oxidation reactions.

  • Contaminant Shielding:
    The layer resists salts, acids, and industrial pollutants that accelerate corrosion.

Self-Healing Capability

  • Continuous Protection:
    Even if the film is punctured or temporarily opened, fresh VCI molecules replenish the protective layer, maintaining defense until the film is fully compromised.

Synergy with Physical Film Properties

  • Tight Wrapping:
    The stretch film’s elasticity (≥250% elongation) ensures conformal wrapping, eliminating gaps where moisture or air could accumulate.

  • Puncture Resistance:
    Reinforced layers prevent physical damage to the film, preserving the sealed environment.

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Key Advantages Over Passive Barriers

Unlike traditional plastic wraps that merely block external elements:

  1. Active Protection: VCI molecules neutralize corrosion triggers chemically, even in residual humidity.

  2. No Surface Contact Needed: Protection works through vapor dispersion, ideal for complex geometries.

  3. Long-Term Defense: Effective for up to 24 months under proper sealing.

By merging vapor-phase chemistry with robust physical sealing, VCI Stretch Film provides proactive, multi-layered corrosion prevention, ensuring metals remain pristine in demanding environments.

Technical Parameters and Specifications of VCI Stretch Film

VCI (Volatile Corrosion Inhibitor) Stretch Film is engineered to provide robust corrosion protection while maintaining the physical performance required for industrial packaging. Below are the detailed technical parameters and specifications that define its capabilities:

Material Composition

  • Base Polymer: Linear low-density polyethylene (LLDPE) or co-extruded multi-layer polyethylene.

  • VCI Additives: Organic/inorganic corrosion inhibitors (e.g., amine-based compounds, nitrites) embedded uniformly within the film matrix.

  • Color: Transparent blue (standard) or custom colors for product identification.

Physical Properties

ParameterSpecificationTest Standard
Thickness20–30 μm (microns)ASTM D6988
Width300–500 mm (standard), customizable
Length per Roll300–1,000 meters
Tensile Strength≥20 MPa (machine direction)ASTM D882
Elongation at Break≥250%ASTM D882
Puncture Resistance≥4 N/mm²ASTM D5748
Clarity≥90% light transmission (blue tint)ASTM D1746

Corrosion Protection Performance

ParameterSpecificationTest Standard
VCI Release Rate0.1–0.5 mg/cm²/day (adjustable)MIL-PRF-3420H
Protection RangeAll ferrous and non-ferrous metals
Protection PeriodUp to 24 months (depends on sealing)ASTM D1748
Salt Spray Resistance720+ hours without corrosion (ASTM B117)ASTM B117
Humidity Resistance95% RH, 40°C, 30 days (no rust)ASTM D1748

Environmental & Safety Specifications

ParameterSpecificationCertification
RoHS ComplianceLead, cadmium, Hg ≤100 ppmEN 62321
REACH ComplianceSVHC-freeEC 1907/2006
Biodegradable OptionPLA-based film (degrades in 6–24 months)ASTM D6400
FlammabilitySelf-extinguishing (UL94 HB rating)UL 94
Food Contact SafetyFDA 21 CFR 177.1520 compliant (optional)FDA

Thermal & Chemical Stability

  • Operating Temperature: -30°C to 70°C (short-term exposure up to 90°C).

  • Chemical Resistance: Resistant to oils, weak acids, and alkalis (pH 5–9).

  • UV Resistance: Optional UV-stabilized formulation for outdoor storage (≥6 months).

Packaging & Handling

ParameterSpecification
Roll Core Diameter75 mm (3 inches) or 150 mm (6 inches)
Roll Weight15–25 kg (depends on thickness/length)
Storage ConditionsDry, <30°C, away from direct sunlight
Shelf Life12 months (unopened)

Compliance & Certifications

  • MIL-PRF-3420H: U.S. military standard for vapor corrosion inhibitors.

  • ASTM G85: Accelerated salt spray testing.

  • ISO 9001: Quality management system certification.

  • ISO 14001: Environmental management compliance.

Performance Comparison vs. Standard Stretch Film

FeatureVCI Stretch FilmStandard PE Stretch Film
Corrosion ProtectionActive VCI layer (24-month defense)None
Cost EfficiencyEliminates oil/desiccant costsRequires secondary treatments
Environmental ImpactRecyclable/biodegradable optionsNon-biodegradable
Metal ReadinessNo residue; ready-to-useMay require degreasing
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VCI-stret film Customization
China VCI-stret film

Customization Options

  • VCI Concentration: Adjustable inhibitor levels for harsh environments (e.g., marine climates).

  • Thickness: 15–50 μm (ultra-thin for lightweight parts; heavy-duty for sharp edges).

  • Printing: Custom logos, handling instructions, or anti-counterfeit marks.

  • MOQ: Standard MOQ 100 rolls; lower volumes for testing available.

Application Guidelines

  1. Wrap Tightly: Ensure full contact and minimal air pockets.

  2. Seal Edges: Use heat sealing or adhesive tape to maintain VCI concentration.

  3. Avoid Contamination: Do not mix with non-VCI packaging materials.

  4. Storage: Keep wrapped items in dry, ventilated areas.

These technical specifications ensure that VCI Stretch Film meets the rigorous demands of industries requiring long-term metal protection, from automotive manufacturing to global logistics.

Technical Advantages of VCI Stretch Film

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Advanced Anti-Rust Mechanism

VCI Molecular Layer Protection
VCI (Volatile Corrosion Inhibitor) Stretch Film employs a cutting-edge, multi-stage mechanism to neutralize corrosion risks:

  1. Vaporization & Dispersion:

    • Embedded VCI compounds (e.g., amine-based inhibitors) sublimate into a vapor at ambient temperatures, filling the enclosed packaging space.

    • The vapor permeates complex geometries, covering even recessed or hard-to-reach metal surfaces.

  2. Adsorption & Passivation:

    • Ultra-Thin Protective Layer: VCI molecules form a 2–3 molecular layer (≈0.5–1 nm thick) that bonds electrochemically to metal surfaces.

    • Dual-Action Inhibition:

      • Anodic Protection: Blocks metal ion loss (oxidation).

      • Cathodic Protection: Suppresses oxygen and moisture reduction.

    • Hydrophobic Barrier: Repels water molecules, preventing electrolyte formation.

  3. Self-Healing Capability:

    • Continuous vapor replenishment ensures protection even if the film is punctured or briefly opened.

Key Benefits:

  • No direct contact required, ideal for intricate parts.

  • Effective against rust in humid, salty, or polluted environments.

  • Compatible with ferrous (steel, iron) and non-ferrous metals (copper, aluminum).

Superior Physical Properties

Engineered for Industrial Demands:

PropertySpecificationCompetitor BenchmarkSignificance
Tensile Strength≥250% elongation at break150–200% (standard PE film)Conforms tightly to irregular shapes, eliminating air pockets.
Puncture Resistance4.5 N/mm² (ASTM D5748)2.5–3.5 N/mm²Withstands sharp edges, reducing film damage during transit.
Tear Resistance3.0 N/mm (machine direction)1.5–2.0 N/mmMaintains integrity under stress.

Performance Highlights:

  • High Clarity Blue Tint: Allows visual inspection without unwrapping (≥90% light transmission).

  • Temperature Resilience: Operates in -30°C to 70°C, suitable for global shipping and outdoor storage.

  • Multi-Layer Construction: Co-extruded layers enhance durability while retaining stretchability.

Environmental Compliance & Sustainability

Certifications & Eco-Friendly Innovations:

  1. RoHS Compliance:

    • Restricts hazardous substances (lead, cadmium, mercury ≤100 ppm), ensuring safe handling and disposal.

  2. REACH Compliance:

    • All chemicals used are registered and safe under EU Regulation (EC) No 1907/2006.

  3. Biodegradable Options:

    • PLA-Based Film: Degrades in 6–24 months under industrial composting (ASTM D6400).

    • Recyclable LLDPE: Compatible with standard polyethylene recycling streams.

Sustainability Benefits:

  • Reduces reliance on toxic anti-rust oils or disposable desiccants.

  • Lowers carbon footprint through reusable packaging solutions.

  • Explore our Environmental Policy for detailed lifecycle analysis and certifications.

By integrating molecular-level corrosion inhibitionrobust physical performance, and rigorous environmental standards, VCI Stretch Film delivers unmatched protection for metals in industries ranging from automotive to aerospace.

Adjustment of VCI Concentration of VCI Stretch Film

The effectiveness of VCI (Volatile Corrosion Inhibitor) Stretch Film relies heavily on tailoring its VCI concentration to match specific storage or transportation conditions. By optimizing inhibitor levels, the film can address challenges such as high humidity, salt-laden air (common in Sea Freight), or prolonged storage periods. Below is a detailed breakdown of how VCI concentration is adjusted and validated for different scenarios:

 Why Adjust VCI Concentration?

  • Environmental Variability:
    Corrosion rates escalate in:

    • High Humidity (>80% RH): Accelerates electrochemical reactions.

    • Salt Spray (marine environments): Chlorides penetrate passive layers.

    • Temperature Fluctuations: Condensation risks during transit.

  • Metal Sensitivity:
    Ferrous metals (e.g., steel) require higher VCI doses than non-ferrous metals (e.g., aluminum).

  • Packaging Configuration:
    Tightly sealed vs. ventilated packaging affects VCI vapor retention.

Methods for VCI Concentration Adjustment

Film Thickness & Layering

  • Thicker Films (30–50 μm): Allow higher VCI loading for long-term protection.

  • Multi-Layer Co-Extrusion:

    • Outer layer: LLDPE for physical durability.

    • Middle layer: High-density VCI reservoir.

    • Inner layer: Controlled-release matrix.

Inhibitor Formulation

  • Blended Inhibitors: Combine fast-acting and slow-release compounds (e.g., dicyclohexylamine for rapid coverage + sodium nitrite for longevity).

  • Microencapsulation: Encapsulate VCI agents to delay release in high-temperature environments.

Surface Coating

  • Apply VCI-rich coatings to the film’s inner surface for localized, high-concentration protection.

  1.  

Key Parameters for VCI Adjustment

FactorAdjustment StrategyTechnical Basis
Humidity LevelIncrease VCI concentration by 20–40% for >80% RH environments.Higher humidity demands faster inhibitor release to counteract moisture.
Salt ExposureUse VCI blends with nitrites/amines for chloride neutralization.Nitrites inhibit chloride-induced pitting corrosion.
Storage DurationHigher concentrations for >12-month storage (e.g., 0.5 mg/cm²/day).Sustained vapor release prevents depletion over time.
Temperature RangeAdd thermal stabilizers to maintain release rates at extremes (-30°C to 70°C).Prevents inhibitor crystallization or rapid evaporation.
Metal TypeAdjust inhibitor chemistry (e.g., carboxylates for copper, amines for steel).Metal-specific passivation mechanisms.

Recommended VCI Concentrations by Scenario

EnvironmentVCI Release RateTarget MetalsFilm Thickness
General Storage0.1–0.3 mg/cm²/daySteel, iron20–25 μm
Marine Shipping0.4–0.6 mg/cm²/daySteel, galvanized metals30–40 μm
High Humidity0.3–0.5 mg/cm²/dayCopper, aluminum25–30 μm
Long-Term (>2 years)0.5–0.8 mg/cm²/dayPrecision machinery40–50 μm + multi-layer

By scientifically calibrating VCI concentration, manufacturers and end-users can optimize corrosion protection for any environment, ensuring metals remain pristine from factory to end-use. Collaborate with suppliers to request tailored solutions backed by test reports and case studies.

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    VCI Stretch Film Vs Traditional Anti-Rust Oil/Paper

    Below is a detailed comparison of VCI Stretch Film and Traditional Anti-Rust Oil/Paper focusing on direct costs, hidden costs, and long-term economic efficiency:

    Hidden Cost Comparison

    Cost FactorVCI Stretch FilmTraditional Anti-Rust Oil/Paper
    Post-Treatment Cost$0 (no degreasing needed)High ($0.5–1.0/m² for solvent cleaning)
    Rework & Scrap CostLow (<1% corrosion rate)High (5–10% corrosion rate leads to returns)
    Environmental DisposalLow ($0–0.2/m² for recycling/composting)High ($0.5–2.0/m² for hazardous waste disposal)
    Storage & LogisticsLightweight, no extra packagingBulky oil drums; paper adds weight when damp

    Long-Term Economic Efficiency

    Case Study: Protecting 1,000 m² of Metal Parts (2-Year Cycle)

    Cost ItemVCI Stretch FilmAnti-Rust OilAnti-Corrosion Paper
    Material Cost$1,500$600$400
    Labor & Equipment$200 (automated)$1,500$800
    Disposal Cost$50 (recycling)$1,000$300
    Corrosion Loss$20 (0.2% damage)$8,000 (8% loss)$4,000 (4% loss)
    Total Cost$1,770$11,100$5,500
    Savings84% vs. Oil68% vs. Paper

    Key Cost Drivers

    1. Protection Duration:

      • VCI Film: 2 years vs. Oil/Paper: 3–6 months (requiring reapplication).

      • Recoating Cost: Traditional methods add $2–4/m² annually.

    2. Productivity:

      • VCI Film enables 3–5x faster packaging vs. manual oil/paper application.

    3. Regulatory Risks:

      • Anti-rust oils may incur fines for VOC emissions (e.g., €50,000+ under EU REACH).

      • VCI’s RoHS/biodegradable options avoid compliance risks.

    While VCI Stretch Film has higher upfront material costs, its zero post-treatment, low corrosion rates, and compliance deliver 84% lower total costs vs. oil and 68% vs. paper over a 2-year period. For businesses prioritizing long-term savings and sustainability, VCI technology is the economically superior choice.

    VCI Stretch Film Vs Traditional Anti-Rust OilPaper
    Hidden Cost Comparison VCI Stretch Film Vs Traditional Anti-Rust OilPaper

    Application Scenario of VCI Stretch Film

    VCI (Volatile Corrosion Inhibitor) Stretch Film is a multifunctional packaging material designed to protect metals from rust and corrosion across diverse industries and environments. Its unique combination of physical durability and chemical inhibition makes it ideal for scenarios requiring long-term protection, ease of use, and compliance with environmental standards. Below are detailed application scenarios categorized by industry and use case:

    Aerospace & Defense Application Scenarios of VCI Stretch Film

    Heavy Machinery & Industrial Manufacturing

    Use Cases:

    • Construction Equipment: Protects excavator buckets, hydraulic cylinders, and steel beams in outdoor storage yards.

    • Agricultural Machinery: Shields plows, harvesters, and tractors from fertilizer-induced corrosion.

    • Tooling and Molds: Wraps CNC machine parts, injection molds, and dies to prevent surface oxidation during idle periods.

    Key Advantages:

    • High puncture resistance (≥4 N/mm²) withstands rough handling.

    • Metals remain “ready-to-use” without post-unwrapping cleaning.

    Electronics & Precision Engineering

    Use Cases:

    • Semiconductor Manufacturing: Protects lead frames, connectors, and circuit boards in humidity-controlled facilities.

    • Medical Devices: Ensures surgical instruments, implants, and MRI components remain sterile and corrosion-free.

    • Optical and Laser Equipment: Safeguards lenses, mirrors, and Precision components from tarnishing.

    Key Advantages:

    • Non-conductive and static-free, ideal for ESD-sensitive applications.

    • Transparent film allows visual inspection without compromising protection.

    Marine & Offshore Industries

    Use Cases:

    • Shipbuilding: Wraps steel plates, pipes, and valves during construction to resist salt spray.

    • Oil & Gas Equipment: Protects drill pipes, valves, and pumps stored on offshore rigs or in coastal warehouses.

    • Cargo Protection: Secures metal goods (e.g., steel coils, machinery) in Ocean Freight containers exposed to salty, humid air.

    Key Advantages:

    • ASTM G85-certified for 720+ hours of salt spray resistance.

    • Reduces insurance claims due to corrosion-related cargo damage.

    Automotive & Transportation

    Use Cases:

    • Engine and Transmission Components: Protects crankshafts, gears, and cylinder heads during Ocean Freight or storage in humid environments.

    • Body Panels and Chassis Parts: Prevents white rust on galvanized steel and aluminum alloys.

    • Electric Vehicle (EV) Batteries: Safeguards battery casings and connectors without leaving conductive residues.

    • Aftermarket Parts: Ensures brake rotors, bearings, and fasteners remain corrosion-free in retail packaging.

    Key Advantages:

    • Eliminates oily residues that interfere with assembly line efficiency.

    • Withstands temperature fluctuations during global shipping (-30°C to 70°C).

    Aerospace & Defense

    Use Cases:

    • Aircraft Components: Protects turbine blades, landing gear, and avionics during maintenance or long-term storage.

    • Military Hardware: Complies with MIL-PRF-3420H for corrosion protection of firearms, ammunition, and machinery in coastal or high-humidity bases.

    • Satellite and Space Equipment: Prevents tarnishing of precision copper and aluminum alloys in cleanroom environments.

    Key Advantages:

    • Meets stringent aerospace cleanliness and non-contamination requirements.

    • Reduces maintenance downtime for mission-critical equipment.

    Application Scenarios of VCI Stretch Film Automotive & Transportation

    VCI Stretch Film is a versatile, cost-effective solution for industries prioritizing long-term metal preservationoperational efficiency, and sustainability. Its adaptability to extreme environments—from Shipping container to precision electronics production line—ensures metals remain pristine throughout their lifecycle. By replacing outdated methods like anti-rust oils or paper, businesses reduce costs, enhance product quality, and align with global environmental regulations.

    VCI Stretch Film With Relevant Details for Different Industries

    IndustryUse CaseTemperature RangeFilm Thickness
    AerospaceEngine Component Storage-40°C to 120°C30µm
    AutomotiveTransmission Shipment-20°C to 80°C23µm
    ElectronicsCircuit Board Protection-10°C to 60°C25µm
    MilitaryWeapon Storage-50°C to 90°C40µm
    Oil & GasEquipment Shipping-30°C to 70°C35µm
    MarineBoat Part Protection-20°C to 70°C28µm
    ManufacturingSteel Coil Packaging-10°C to 50°C32µm
    Heavy MachineryMachine Parts Protection-15°C to 65°C38µm

    Choose the Right VCI Stretch Film

    Based on your industry and application needs, you can select the ideal VCI Stretch Film that ensures optimal protection and performance. Our VCI Stretch Films are designed to safeguard against corrosion, dust, and moisture, providing reliable protection for your goods during storage and transportation.

    If you have specific requirements, we also offer customization options to match your exact needs, including film thickness, temperature range, and packaging solutions tailored to your business. Contact us for more information or assistance in selecting the perfect VCI Stretch Film for your products!

    PWP Stretch Film vs Other Brand VCI Stretch Film

    Comparison FactorPWP Stretch Film’s VCI Stretch FilmOther Brand’s VCI Stretch Film
    VCI vs Desiccant Cost per PalletPWP Stretch Film’s VCI Stretch Film offers a more affordable solution compared to desiccants, reducing overall packaging costs.Desiccants often come at a higher cost per pallet due to additional packaging and handling fees.
    Stretch Film vs Oil Coating ROIOur VCI Stretch Film provides a higher return on investment due to its multifunctionality as both a protective barrier and stretch film.Oil coating may provide temporary protection but lacks the stretch capability, leading to additional expenses for packaging materials.
    Zinc Coating vs VCI Film LongevityPWP Stretch Film’s VCI Stretch Film offers superior longevity, ensuring long-lasting protection from rust and corrosion, which cuts down on maintenance and replacement costs.Zinc coating may provide protection but can wear off over time, requiring more frequent reapplication or replacements.

    Why Choose PWP Stretch Film’s VCI Stretch Film?

    Lower Plastic VCI Stretch Film Quotes: Our VCI Stretch Film offers an excellent cost-performance ratio, helping you save on both packaging materials and corrosion protection.
    Longer Protection: Enjoy extended protection from corrosion with superior longevity and no need for frequent replacements.
    Better ROI: With PWP Stretch Film, you get both the benefits of stretch film and VCI protection in one product, maximizing your investment.

    Manufacturing Process of VCI Stretch Film

    Raw Material Preparation

      • Base Polymers: Select and mix linear low-density polyethylene (LLDPE) or low-density polyethylene (LDPE) as the primary resin.

      • VCI Additives: Incorporate volatile corrosion inhibitors (VCIs) in masterbatch or powder form.

      • Optional Additives: Add UV stabilizers, slip agents, or anti-block agents for enhanced performance.

    Melt Compounding & Extrusion

      • Feed the polymer-additive blend into a high-temperature extruder.

      • Use heat and shear forces to melt the polymer, ensuring uniform dispersion of VCI agents.

      • For multi-layer films, employ co-extrusion to create distinct layers (e.g., VCI-active core layer + protective outer layers).

    Film Formation

      • Blown Film Method:

        • Extrude molten polymer through a circular die.

        • Inflate into a bubble using air pressure, then cool with air rings.

      • Cast Film Method:

        • Extrude polymer through a flat die onto chilled rollers for rapid cooling and uniform thickness.

    Stretching/Orientation

      • Stretch the film biaxially (machine direction and transverse direction).

      • Enhances tensile strength, elasticity, and load-holding capacity.

    VCI Integration

      • Method 1: Embed VCI additives directly into the polymer matrix during extrusion (most common).

      • Method 2: Post-production coating of VCI solution onto the film surface (less frequent).

    Cooling & Annealing

      • Gradually cool the film to stabilize its molecular structure.

      • Eliminate internal stresses to ensure dimensional stability.

    Surface Treatment (Optional)

      • Apply corona treatment to increase surface energy for better adhesion (e.g., printing or laminating).

    Winding & Slitting

      • Wind the finished film into large parent rolls.

      • Slit rolls into customer-specific widths using precision blades.

    Quality Control Testing

      • Physical Tests: Measure thickness uniformity, tensile strength, and elongation.

      • VCI Efficacy Tests: Validate corrosion protection via humidity chamber tests (e.g., ASTM D1748, MIL-STD-3010).

    Packaging & Storage

      • Roll the film onto corrosion-resistant cores.

      • Seal in VCI-protective packaging (e.g., aluminum-lined bags) to prevent premature activation.

      • Store in dry, temperature-controlled environments.

    Raw Material Preparation
    Film Formation
    StretchingOrientation
    Quality Control Testing

    Why Choose Our Stretch Film Over Competitors?

    vci stretch film or volatile corrosion inhibitor stretch film
    AttributesDetails
    Place of OriginFujian, China
    Brand NamePWP Stretch Film
    MaterialLinear Low Density Polyethylene
    TypeVCI Stretch Film
    FeaturesMoisture-proof, High Stretchability
    HardnessSoft
    Processing TypeCasting, Blow Molding
    TransparencyTranslucent, Opaque
    ColorCustomized
    ThicknessCustomized
    WidthCustomized
    SizeCustomized Size Accepted
    ApplicationPackaging
    PrintingCustomized Printing
    SurfaceSmooth, High Gloss
    Packaging DetailsAvailable as per Customer's Requirements

    FAQs about VCI Stretch Film

    The process of making VCI film involves several key steps. First, the base material, usually polyethylene or another polymer, is selected for its flexibility and strength. This base material is then blended with VCI additives, which are corrosion-inhibiting chemicals designed to protect metal surfaces. The film is produced using extrusion techniques, where the polymer blend is melted and formed into thin sheets or rolls. During the extrusion process, the VCI additives are uniformly distributed throughout the film to ensure consistent corrosion protection. Once the film is extruded, it is cooled and wound into rolls or cut into sheets, depending on its intended use. Quality control checks are performed to ensure that the VCI film meets the required specifications for thickness, strength, and corrosion protection.

    VCI stretch film, or Vapor Corrosion Inhibitor stretch film, is a specialized packaging material designed to protect metal products from corrosion. This film is engineered with VCI technology, which releases vapors that form a protective layer on metal surfaces, preventing rust and oxidation during storage and transportation. The film often features a transparent blue color, allowing for easy product identification while providing robust protection. Unlike traditional stretch films that primarily serve as a bundling solution, VCI stretch film combines the benefits of stretchability with the added advantage of corrosion inhibition. This makes it an ideal choice for industries that handle metal components, such as automotive, manufacturing, and aerospace, ensuring the integrity and longevity of metal items.

    VCI film is widely used in various applications where metal protection is critical. Its primary purpose is to safeguard metal components from rust and corrosion during storage and transit. By wrapping items in VCI film, companies can extend the lifespan of tools, machinery, and other metal products that are prone to oxidation. This film is particularly beneficial for large mechanical parts and engines, where exposure to moisture and air can lead to significant damage. Additionally, VCI film is useful for packaging finished goods, providing a protective barrier against environmental contaminants. Its versatility allows it to be employed in different sectors, ensuring that metal products remain in optimal condition throughout their journey. The incorporation of VCI technology in packaging solutions helps businesses reduce maintenance costs and enhance the durability of their metal assets.

    While stretch film and cling film may appear similar and serve some overlapping purposes, they are not the same. Stretch film is a thicker, more robust material designed primarily for wrapping and securing items during shipping and storage. It is made from polyethylene and provides excellent stretchability and strength, allowing it to tightly wrap around various objects. Stretch film is commonly used in industrial applications, such as bundling products on pallets and providing protection against dust and moisture. In contrast, cling film, often referred to as plastic wrap, is thinner and more flexible. It is primarily used in household settings for food storage, as it clings to surfaces to keep food fresh. Cling film is not designed for heavy-duty applications and lacks the protective features of stretch film. Therefore, while both materials can provide some level of coverage, they are tailored for different uses and environments.

    Stretch film is a versatile packaging material used in various applications to secure and protect items. Its primary use is in industrial settings, where it is commonly employed to wrap pallets of goods for shipping and storage. Stretch film provides a strong, tight seal that prevents products from shifting during transit, reducing the risk of damage. It is also used for bundling smaller items together, making it easier to handle and transport multiple products at once. Additionally, stretch film offers protection against dust, dirt, and moisture, ensuring that items remain clean and intact. Its clarity allows for easy identification of wrapped products, making it an excellent choice for inventory management. Beyond industrial uses, stretch film can be utilized in retail and household settings for wrapping and securing various items, from furniture to seasonal decorations. Overall, stretch film's adaptability and protective qualities make it an essential tool in many packaging processes.

    Preventing rust during overseas shipping is crucial, especially for metal parts and machinery that are susceptible to corrosion. The long shipping times, exposure to moisture, and varying environmental conditions can increase the risk of rust formation. Fortunately, several methods can effectively safeguard metal products from rust during international transport. Use of VCI (Vapor Corrosion Inhibitor) Films: One of the most reliable methods to prevent rust during overseas shipping is by wrapping metal parts in VCI stretch film or VCI sheeting. VCI films release vapor corrosion inhibitors that create a protective molecular layer on the metal surface. This layer shields the metal from moisture, salts, and other environmental factors that can cause corrosion. This method is particularly effective for long-haul shipping because it offers ongoing protection during transit, even in humid or salty sea environments. Proper Packaging: In addition to VCI films, consider using airtight containers or sealed packaging to prevent direct contact with air and moisture. Using shrink wrap or heavy-duty plastic sheeting can help further ensure that moisture does not come in contact with the metal parts. When using shrink wrap, it's important to ensure a tight seal to prevent air and moisture from infiltrating the package. Desiccants and Moisture Absorbers: Placing desiccant packs or moisture-absorbing materials inside the packaging can help absorb any humidity that may cause rust. These are especially beneficial in high-humidity climates or when shipping through areas with unpredictable weather conditions. Protective Coatings: Another effective method is to apply a rust-preventative coating such as an anti-corrosion oil or grease to the metal parts before shipping. This creates a physical barrier between the metal surface and the elements, providing extra protection against moisture and corrosion. Regular Inspection and Maintenance: During the transport process, periodic checks on the cargo can help identify and address any potential issues before they worsen. This is especially important for longer shipments where the environment may change drastically. By combining these methods—VCI films, proper sealing, desiccants, and protective coatings—you can significantly reduce the risk of rust and corrosion on metal parts during overseas shipping, ensuring they arrive in optimal condition.

    If your metal parts are rusting under stretch wrap, several factors could be at play. Stretch wrap alone typically provides limited protection from corrosion, and if not used properly or in the right environment, it may lead to rust formation. Below are the common reasons why rust can develop under stretch wrap: Moisture Entrapment: One of the primary reasons metal parts rust under stretch wrap is moisture buildup. While stretch wrap is great for holding items tightly, it does not offer a full barrier against moisture. If the metal parts were not dry when they were wrapped or if the packaging is exposed to humid conditions, moisture can become trapped under the film. Once sealed, this moisture has nowhere to escape, and it can cause the metal parts to oxidize, leading to rust formation. Lack of Vapor Corrosion Inhibitors (VCI): Regular stretch wrap does not contain any corrosion-resistant properties. If you use standard stretch film without VCI technology, the film does not release protective vapor molecules to safeguard the metal surfaces from moisture and oxygen. This leaves the metal unprotected and prone to rust. In such cases, it’s advisable to use VCI stretch film, which releases corrosion inhibitors that actively protect the metal surfaces from rusting. Environmental Factors: Shipping or storing metal parts in humid or saline environments, such as near the coast, significantly increases the risk of rusting. Stretch wrap does not prevent the exposure to air or moisture, especially when used in outdoor or unprotected storage settings. In these cases, using additional protective measures such as VCI films, desiccants, or rust-resistant coatings can prevent rust from forming. Improper Sealing: Stretch wrap is designed to secure items tightly, but if it is not sealed properly, there may be small gaps where air and moisture can enter. If the wrap is loosely applied or doesn’t cover the item completely, moisture can get inside the wrap and cause rust. Ensuring the stretch wrap is tightly sealed and covers the item fully is essential in preventing rust. Temperature Fluctuations: Changes in temperature, especially when transitioning between hot and cold environments, can lead to condensation inside the stretch wrap. When the temperature drops, moisture in the air can condense and accumulate on the metal surface, even under a tight wrap. This moisture can then cause rust over time. To address this, it’s important to store or ship metal parts in temperature-controlled environments or to use specialized films that can manage condensation and moisture buildup. To prevent rust under stretch wrap, ensure that the metal parts are thoroughly dry before wrapping, use films that include VCI technology for corrosion protection, and consider additional methods like desiccants, proper sealing, and rust-preventative coatings.

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