Volatile Corrosive Inhibitors (VCI)
How it Works?
Papers or plastic films are coated or impregnated with VCI additives, the choice of which is dependent on the type of metal to be protected. When the metal part is enclosed or wrapped with the VCI’s, vapors are emitted which saturate the surrounding air-space.
The vapors are adsorbed onto the metal surface forming a mono-molecular protective layer. The layer remains on the metal until the package is opened, at which point the vapors escape, leaving a clean and rust-free surface.
Advantages and Benefits
The two primary advantages of using VCIs are the following:
1. The elimination of anti-rust oil, or at least the reduction of its usage
While proven to be also effective in protecting metals, oils or liquids presents itself as an environmental concern, as it still needs to be disposed properly once its efficacy goes down. In addition, certain chemicals or components of the anti-rust oils may be considered as health-hazards, in relation to skin contact and inhalation. VCI papers and plastics on the other hand, at least those from reputable manufacturers, have been tested to be safe for both humans and the environment. Reducing the use of oils obviously reduces over-all costs of production, a big consideration for most companies.
2. Streamlining of processes
If the use of anti-rust oils is eliminated in favor of utilizing VCIs, then one step in the manufacturing process is removed. The process to provide rust protection AND packaging is consolidated into one single step, freeing up manpower to focus on more productive tasks, as well as improving the over-all cycle-time for production. Moreover, the step of degreasing or washing the anti-rust oils’ coating from the metal components is also eliminated, as the unboxed or unwrapped parts will be dry, but rust and corrosion-free.
Select Your VCI Paper
1. Identify Type of Metal to be Protected and Select VCI additive
| Metal | Additive |
|---|---|
| Ferrous, Silicon Steel | SFD-306-67-PO / SFD-306-92-PA |
| All Ferrous Metals and Aluminum | SFH Series |
| Multi-Metals | SFD-308 |
| Copper and Alloys | SFT-502 |
| Cold Rolled Plate | SFH-104 |
| Silicone Steel | SFH-110 |
| Galvanizing Passivated Steel Plate | SDF-305 |
| Tinned Steel Plate | SFD-318 |
| Electrogalvanized Steel Plate | SFD-309 |
| Colour-Coated Plate | SFD-310 |
2. Select Paper Type – Kraft or Crepe
3. Select Linings or Coatings – Plain, with PE coating, with Woven Fabric, with PE and Fabric
| Model | Structure | Application |
|---|---|---|
| PO | 
| Light-duty Anti-corrosion Packaging |
| PA | 
| |
| WO | 
| |
| WA | 
| Winding Anti-corrosion Packaging |
| WB | 
| |
| WC | 
| |
| PC | 
| Heavy-duty Anti-corrosion Packaging Highbarrier, low water vapor transmission rate and high physical strength |
| PZ | 
| |
| PD | 
| |
| PF | 
| Separator, gasket, various cold-rolled sheet steel coil packaging core protection |
| PL | 
| Waterproof packaging, inner PE film has oil resistance |
| PM | 
| Heavy-duty Anti-corrosion Packaging |
4. Select Thickness - from 70 gsm to 200 gsm
5. Select Form - sheets or rolls or special
6. Specify Dimensions
*Other special paper types may be provided upon request, as well as special printing of labels for branding purpose.
Select Your VCI Film
1. Identify Type of Metal to be Protected
| Metal | Additive |
|---|---|
| Ferrous, Silicon Steel | SFD-306-67-PO / SFD-306-92-PA |
| All Ferrous Metals and Aluminum | SFH Series |
| Multi-Metals | SFD-308 |
| Copper and Alloys | SFT-502 |
| Cold Rolled Plate | SFH-104 |
| Silicone Steel | SFH-110 |
| Galvanizing Passivated Steel Plate | SDF-305 |
| Tinned Steel Plate | SFD-318 |
| Electrogalvanized Steel Plate | SFD-309 |
| Colour-Coated Plate | SFD-310 |
2. Select Film type – LDPE, Stretch Film, Bubble Wrap or Shrink Film
3. Select Film Color – Blue, Green, Yellow
4. Select Film thickness – from 40 to 120 microns
5. Select Linings or Coatings – Plain, with Aluminum Foil Coating, with Woven Fabric or both
6. Select Form - Bags (Flat, Guesset, Cube), Sheets, Rolls
| Name | Model | Description | Product Form | Thickness | ||
|---|---|---|---|---|---|---|
| VCI Film | SF | HF | For ferrous metal | Roll type, sheet form, bags | 40, 60, 80, 100, 120 | |
| DF | For multi-meta | Roll type, sheet form, bags | 40, 60, 80, 100, 120 | |||
| DF | J | Anti static | Roll type, sheet form, bags | 80 | ||
| JC | Stretch film | Roll type | 35, 50 | |||
| SS | Heat shrinking | Roll type, sheet form | 180 | |||
| DAF | Safe, nitrite free | Roll type, sheet form, bags | 80, 100 | |||
| VCI film with lamination | SF | HZ, DZ | VCI film with aluminum foil and PE fabric | Roll type, sheet form, bags | 195 | |
| ZLF | VCI film with woven fabric | Roll type, sheet form | Other | |||
7. Specify Dimensions
*Printing and special forms and sizes are available upon request.
