How Does VCI Paper Protect Hubballi-Dharwad Metal Parts?
VCI paper is kraft or specialty paper carrying volatile corrosion inhibitors that release protective vapour inside a closed pack. When clean, dry valve components, gears, motor parts or machined castings are wrapped or interleaved and enclosed in a carton or bag, the vapour reaches exposed surfaces and interrupts the electrochemical corrosion process. The receiver opens dry parts without removing grease.
North Karnataka is not corrosion-free because it is inland. IMD observations for Dharwad can show very high morning relative humidity during the southwest monsoon. Cool machined metal moved between plant, warehouse and truck can collect condensation, especially after washing or coolant operations. VCI paper works only when the metal is dry, the treated side faces the part as specified and the outer pack holds the protective atmosphere.
VCI paper HubballiVCI paper Dharwadvalve component rust protectionfoundry part interleave