VCI Technology

Rust-X patented VCI technology of speedy moisture pasivation has helped automotive, aerospace, engineering and heavy metals industry a great deal.

SMP VCI acts within seconds and lasts upto 15 years. Previous industry standards of 6 to 8 hours of VCI action resulted in non de-activation of moisture and acceleration of corrosion when goods were packed.

20% of RustX VCI evaporates with 6 hours and remaining 80% is exhausted over a period of 15 years. It is the first 6 hours of packing in which maximum condensation takes place on metal surface after opening the bag and placing the parts. It is quintessential that this moisture is immediately reacted with VCI to neutralize it else moisture that settles on metal will cause corrosion resulting in formation of Ferrous Oxide

How VCI functions: VCI works by deactivation of moisture by evaporating the chemicals from the film , paper or powder and reacting with moisture to form a multimolecular bond which is non reactive to metal surface. VCI also form a fine layer on the metal surface invisible to naked eye and this deactivates the electron flow that causes oxidation of metal

VCI also alters the pH value of the packaging to around 8-9 which makes an alkaline. In an alkaline atmosphere the possibility of corrosion reduces substantially for years and years together.

Single Layer Structure

q  Less Tacky film due to lower impregnation of tacky additives

q  Lower VCI Dosage

q  Lower Elongation due to lesser take up

q  Lower production capacity

q  Higher Water Vapour Emission Rates

q  Higher Oxygen Transmission Rates

q  Higher blow holes and puncture points

 


Co Ex Plant 

q  Outer Layer

q  High quantity of  strengthening polymers

q  High corona treatment for better printing adhesion

q  Middle Layer

q  High moisture and oxygen barrier polymers that also give better strength and elongation

q  VCI Additives for appropriate bleeding to the inner layer

q  Inner Layer

q  VCI Additives in high proportion

q  High tacky additives for stretch films

Sources of Corrosion

Corrosion in Vendors Manufacturing process

¨   Shipping in open bins

¨   No use of Rust Preventives

¨   Lack of packaging knowledge

¨   Poor handling by transporter

¨   Exposure to rainfall

¨  RESPONSIBILITY TO GATE syndrome

Other Causes of Corrosion

q  Lack of knowledge of packaging

q  Poor Storage Facilities

q  Exposure to Rainfall or Acidic Environments

q  Irregularity of storage periods

q  Under-designed Packaging Solution

q  Cost based decisions by suppliers

q  Non Sea-Worthy Products

q  Pressure on reducing packaging costs

q  Knowledge issues 

q  Water based washing

q  LCL Conisgnments subjected to Rainfall