How long does it take for the interior of a VCI package to reach its designed corrosion prevention capability?

The time required for VCI molecules to saturate a package is a function of the volume and temperature of the package.

Therefore, VCI products provide protection as soon as the VCI molecules reach the metal surface. VCI molecules will continue to diffuse throughout the package until the environment is saturated with VCI molecules, at which point VCI products provide maximum protection.