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Packaging is a part of everyday life. It provides adequate protection to the stored material, creates brand image & acts as a 'Silent Advertiser' for the products.
MATHURA POLY PACK P LTD, established in 1992, is an ISO 9001 company.
We are manufacturer & exporters offering Flexible Packaging Solutions to match the needs of clients. We have established ourselves in the industry on the basis of quality & innovation.
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Our Products
 
 
VCI Films & products
MPPL- VCI Films / (VCI-Corrosion Protection Film)

Characteristics
MPPL VCI is a transparent, bluish special polyethylene film; it is nitrite- and amine-free and features active VCI corrosion protection on both sides. It is waterproof, weldable and suitable for use in automated packaging processes and for bag manufacturing.

The film continually releases small amounts of active substances into the atmosphere inside the packaging, meaning that metal surfaces that are not directly in contact with the film also benefit from protection. The distance between film and the surrounding metal surfaces will depend on the packaging volume and the amount of time needed for a protective atmosphere to build up - 10 cm can be used as a rule of thumb. Depending on the packaging volume, it can take up to 20 hours for a sufficient protective atmosphere to dev


Scope of protection
Steel, cast iron (limited, only on contact); reliable corrosion protection for galvanized steel, nickel, aluminium, chrome, zinc, and copper and its alloys. We recommend a compatibility test for cadmium and magnesium alloys.

Film quality
MPPL VCI 3.06Thickness: 60 µm
MPPL VCI 3.08Thickness: 80 µm
MPPL VCI 3.10Thickness: 100 µm
MPPL VCI 3.15Thickness: 150 µm
MPPL VCI 3.20Thickness: 200 µm
Extra strong:
MPPL VCI 3.10 XS,Thickness: 100 µm
 
Available product sizes
Flat film, sheets, bags, covers, tubes, half-tubes and side-fold tubes.
 
Work safety
MPPL VCI is not a hazardous formulation as defined in the hazardous materials ordinance. Further information can be found in our Material Safety Data Sheet.
 
MPPL VCI products are to be used exclusively for the stipulated applications (packaging/preservation of metal parts susceptible to damage). We accept no liability for consequential damage resulting from improper use.
 

VCI-Principle

VCI means Volatile Corrosion Inhibitor, in other words a volatile prevention of corrosion or anticorrosive. The term VCI inhibitor is understood to mean the working of special volatile linkages into differing carrier materials. Inherent inhibitor vapour pressure causes them to evaporate out of the carrier material and to diffuse within the packaging. They are absorbed onto metal surfaces in the form of an invisible film. Once there, they provide active protection against the breakdown of the passive layer.


Three mechanisms are discussed for corrosion protection:

Active mechanism 1 - preventing access of water

VCI component forms an adduct with the metal surface and displaces humidity (surface hy drophobisation)
Evaporation of water on the passive layer and barring the entry of new water/oxygen
No further reactions are possible
Lack of electrolytes prevent the passive layer’s decomposition

This mechanism applies for the protection of all metals.
Active mechanism 2 - changing the metal surface

Agent is absorbed into the humid film (electrolytes)
Metal surface is modified by the VCI component’s oxidation properties
The resulting ‘superior’ metal surface is not susceptible to corrosion under prevalent conditions
Repair of the destroyed passive layer

This mechanism applies for the protection of ferrous metals.

Active mechanism 3
Modification of the environment’s pH value making any corrosion impossible

This mechanism applies for the protection of all metals.

Active VCI substances can be integrated in a wide range of carrier materials. For example papers, films or fluids.


Advantages of the VCI-method
When paper/film is used the packing doubles as corrosion protection
Paper/film/chips are recyclable
Paper = renewable raw material
No cleaning required, all parts are ready for use right away
Brief opening of packaging creates no problems (customs)
No special requirements for safety at work
Limits of the VCI-method
Product needs to be explained because different VCI grades for different metals
Wrong VCI grade may attack protected material
Parts for packaging must be free of soiling (finger prints, residues of baths)

These limits can be broken by consulting experts.

Applications

Sea Worthy Corrosion Protection during Shipments
Corrosion Protection during Storage


VCI ZIPPER BAG


MPPL VCI Usage Guidelines

What should be taken into account when packaging materials?
Metal surfaces should be clean wherever possible
They should be clear of deposits from previous processes else trials are recommended for compatibility check.
Corrosion should not be already apparent
The packaging should be applied and sealed as tightly as possible (avoid drafts); the more securely sealed the outer packaging, the longer and more secure the corrosion protection.
Printed surface to the outside, because outer surfaces often carry special characteristics
Metals Part should not be in direct contact with wood / corrugated box surface.

MPPL VCI Storage Guidelines

How are VCI products stored?

What should be taken into account when packaging materials?
In order to prevent active-agent loss, products should be stored in a cool, dry place and in their original packaging. Packaging already opened should be sealed wherever possible following work. The top sheet or outer roll should be disposed of following extended storage periods.

For any specific queries, contact MPPL Office.
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