vci anti rust stretch film
Foshan Opalus Adhesive Products Co., Ltd. is a manufacturer of vci anti rust stretch film for steel parts, machinery components, automotive parts, palletized metal loads, sea shipment, and warehouse storage. This functional VCI stretch wrap releases vapor corrosion inhibitor molecules inside a closed or semi-closed package, helping reduce corrosion risk on exposed metal surfaces while keeping the wrapped load stable during transport, container handling, and indoor storage.
- Material: VCI modified LLDPE film
- Thickness: 20-30 um / 80-120 gauge
- Color: Transparent or light tint
- Roll type: Hand-grade and machine-grade
- Use: Steel, iron, machinery, auto parts
- Supply: Custom width, length, core, packing
Product Overview
VCI anti rust stretch film is used when metal parts need more than simple pallet wrapping. Ordinary clear stretch film can hold a pallet together, but it cannot create an active anti-corrosion packaging environment. This film combines stretch wrapping strength with vapor-phase rust prevention, so steel, iron, cast, or machined metal surfaces can be protected inside the wrapped space.
After wrapping, VCI molecules move through the enclosed air space and settle on exposed metal areas. This temporary corrosion-inhibiting layer helps reduce the effect of oxygen, humidity, salt, fingerprints, and airborne contaminants. Actual performance depends on metal type, surface cleanliness, overlap quality, route humidity, storage temperature, and handling method.
Common production references include 20-30 um / 80-120 gauge thickness, 250-500 mm roll width, and 2 inch or 3 inch paper core options. Final specification should be checked by trial wrapping on actual metal loads, especially when sharp corners, burrs, protruding edges, pallet vibration, or long sea routes may increase puncture and corrosion risk.
For small precision parts or mixed cartons, VCI bags, VCI paper, or carton liners may be placed inside the carton, while the outer stretch film secures the pallet and helps keep the VCI environment more stable.
Benefits
- Helps protect steel, iron, cast parts, and selected metal components through vapor corrosion inhibitor action.
- Combines rust prevention with load holding for palletized metal loads that require anti-corrosion packaging.
- Works with hand wrapping, semi-automatic wrapping, and machine wrapping.
- Transparent or lightly tinted film supports barcode reading, label checking, and visual inspection.
- 20-30 um / 80-120 gauge references help match puncture resistance with sharp corners and heavy parts.
- Stretch performance, cling, tear resistance, and edge-puncture behavior can be checked on actual metal loads.
- Correct overlap, top coverage, bottom-edge wrapping, and pallet contact sealing help reduce air exchange.
- Protection period should be confirmed by metal type, sealing quality, humidity, route, storage condition, and inspection result.
When Should VCI Stretch Film Be Used with Desiccants or VCI Bags?
VCI stretch film can be used alone when metal parts are clean, dry, reasonably enclosed, and stored or shipped under controlled conditions. For sea shipment, high-humidity warehouses, long transit routes, container condensation risk, or large temperature changes, desiccants, VCI bags, VCI paper, or moisture barrier materials may be added. Desiccants absorb excess moisture, while VCI materials provide active corrosion protection around the metal surface. For boxed auto parts, precision parts, or mixed metal components, an inner VCI bag or liner can create a closer protective space, while the stretch film holds the outside pallet.
TDS
| Item | Typical Value |
|---|---|
| Product Name | VCI Anti Rust Stretch Film |
| Base Material | VCI modified LLDPE stretch film |
| VCI Function | Vapor-phase corrosion inhibitor for enclosed metal packaging |
| Typical Thickness | 20-30 um / 80-120 gauge |
| Color | Transparent / blue tint / custom light tint |
| Film Type | Hand-grade or machine-grade |
| Roll Width | 250-500 mm reference / custom width available |
| Core Size | 2 inch or 3 inch paper core / confirm before production |
| Stretch Performance | Confirm by wrapping machine setting and pallet load |
| Cling Level | Medium to high cling for pallet stability |
| Puncture Resistance | Checked by sharp edge and corner wrapping trial |
| Tear Resistance | Confirm by load weight / film thickness / wrapping tension |
| Metal Compatibility | Steel / iron / cast parts / selected ferrous and non-ferrous metals after validation |
| Packaging Condition | Clean / dry / cool-to-ambient metal surface before wrapping |
| Sealing Requirement | Overlap / bottom edge / pallet contact area should limit air exchange |
| Moisture Control | Desiccant or moisture barrier can be added for sea freight and high-humidity storage |
| Protection Period | Confirm by metal type / humidity / route / storage condition / test result |
| Sample Validation | Actual metal-part trial wrapping and retained sample confirmation recommended |
| Storage Condition | Store rolls in a clean dry indoor area away from heat and direct sunlight |
Applications
- Palletized steel parts for export shipment and indoor warehouse storage
- Machined metal components requiring temporary rust prevention
- Automotive parts, stamped parts, brackets, fasteners, and assemblies
- Cast iron, steel tools, bearings, molds, shafts, and metal hardware
- Irregular machinery parts with sharp corners, burrs, or protruding edges
- Metal loads shipped by sea where humidity, temperature swing, and container condensation are concerns
- Industrial parts requiring both stretch wrapping stability and anti-corrosion packaging
- Factory work-in-process metal goods waiting for assembly, coating, inspection, or delivery
How Should Metal Parts Be Prepared Before VCI Stretch Wrapping?
Metal parts should be clean, visibly dry, and close to ambient temperature before wrapping. Water spots, cutting fluid, fingerprints, salt, acidic residue, dust, or cleaning chemicals can stay trapped inside the package and weaken protection. Recently washed, machined, or heat-treated parts should cool before sealing, because warm metal can create condensation during storage or container transport. Sharp corners, burrs, protruding edges, and heavy machinery parts should be checked during trial wrapping. Corner pads or inner film may be needed when edge-puncture marks appear. After wrapping, overlap, top coverage, bottom edge, and pallet contact areas should be reviewed. Retained sample confirmation is recommended for repeat packing.
FAQ
1. Is VCI anti rust stretch film the same as ordinary stretch wrap?
No. Ordinary stretch wrap mainly holds pallets together. VCI anti rust stretch film also releases vapor-phase protection for metal packaging inside the wrapped space.
2. Can this film protect all metal materials?
Metal compatibility should be confirmed before use. It is commonly used for steel, iron, cast parts, machined components, and selected metal parts, but mixed metals and sensitive surfaces should be tested first.
3. How long can the anti-rust protection last?
The protection period depends on metal type, film thickness, sealing quality, humidity, sea route, warehouse condition, and test result. Actual metal samples should be checked before bulk use.
4. Does VCI stretch film replace desiccants?
Not always. VCI film provides vapor corrosion inhibitor protection, while desiccants help control moisture. For sea freight, high humidity, container condensation risk, or long-term storage, both may be used together.