Volatile Inhibitor Ability Test

This method is to evaluate the capability of the VCI paper for Iron & Steel, so called as VIA (Volatile Inhibitor Ability) Test.

By keeping Iron & Steel, the test piece, without contact to “VCI treated paper”, the piece is forced to get rust by dew condensation. In other words, it is the test to make sure whether the VCI, contained in the VCI treated paper, has the capability to protect Iron & Steel from rusting. In this testing method, the extraordinary heavy dew condensation will occur due to the piece being rapidly cooled down under high humidity condition. In this way, the test is carried out in the toughest condition.

As a comparison, Iron & Steel treated with adpack® VCI paper is also tested. The results can be seen in the figure at the end of this section.

H-type (Rapid effect) = No rust is discerned on the test piece, even 1 hour after making the piece dew condensed 

EL-type (Slow effect) = More than 50% (Anti-Rust rate), even 20 hours after making the piece dew condensed 

“H” is High vaporability 
“EL” is Extremely Low vaporability.

The test pieces (Steel) after having the VIA test