1. SONG WON –VCI (TECHNICAL DATA)
Volatile(Vapor) Corrosion Inhibitor (VCI)
VCI Paper

2. Characteristics of VCI products
What is VCI ?
Forming a passive layer on the surface of the metal, which serves as a barrier preventing moisture, rust and corrosion.
Characteristics of VCI products
Long lasting,effective protection against corrosion
Easy,clean and economical application options
Easy storage
Reduced processing time

3. VCI Mechanism
prevent electrochemical reaction of metals with the environments
Chemisorptions on the metal
Completing with the metal ion
Neutralizing and absorbing of the corrosive element
Metal
Corrosive element
Neutralized element
VCI
Passive Film

4. What’s Corrosion?
Destructive result of electrochemical reaction between a metal or metal alloy and environments
Electrochemistry of corrosion in ferrous metal
2Fe + O2 + 2H2O -> 2Fe OH- -> Fe ( OH)2
2Fe(OH)2 + 2H2O + O2 -> 2Fe(OH)3
2Fe(OH)3 + Fe(OH)2 -> Fe3O4 + 4H2O
2Fe(OH)3 -> Fe2O3 +H2O

5. VCI Classification SWVCI 10 SWVCI 20 SWVCI 30 SWVCI 40 VCI PAPER
VCI for Ferrous metal (SWVCI 10)
VCI for Non-ferrous metal (SWVCI 20, SWVCI 30, SWVCI 40,)
VCI PAPER
SWVCI 10
Steel products, cold rolled coil &Mechanical device, Shadow mask, pure ferrous products
SWVCI 20
Galvanized iron,
Galvanized steel plate & multi-metal
SWVCI 30
Copper &Copper alloy
SWVCI 40
Copper Copper alloy coated steel & Radial cord
VCI PAPER
Coating on kraft paper impregnated with volatile corrosion inhibitors, then used to cover , wrap or metal surface

6. VCI paper Product Material Use VCI kraft paper PE VCI paper
k.P + VCI
-Ferrous
Pure Ferrous
Non-Ferrous
Copper
Copper/steel
PE VCI paper
PE+K.P+VCI
OPP VCI PAPER
OPP+PE+K.P+VCI
CLOTH VCI PAPER
PE+PE CLOTH+PE+K.P+VCI
OPP CLOTH VCI PAPER
OPP+PE+PE CLOTH+PE+K.P+VCI

7. Customers POSCO (WWW.POSCO.CO.KR) UNION STEEL (WWW.UNIONSTEEL .CO.KR)
KISWIRE (
LG MICRON (
SAMSUNG SDI (
POONSAN (
HYUNDAI MOTORS (
HYUNDAI HEAVY INDUSTRIES(
SEAH STEEL CORP (
OTHERS