When the VCI Film is exposed to rain or other unknown liquids from the outside due to external factors, will it have an impact on the anti-rust particles that have already been produced inside? How long can its anti-rust ability last? Will the protective film that has already formed on the metal surface change as a result?

When the VCI Film is affected by external factors such as rain or other unknown liquids, it may indeed have an impact on the anti-rust particles inside the film, thereby affecting its anti-rust ability. The main function of VCI Film is to release anti-rust agent particles to create a protective atmosphere inside the packaging, thereby preventing the metal surface from getting damp, oxidized and corroded. If external liquid seeps into the membrane, water and other substances may disrupt the uniform release of the rust inhibitor, causing the rust particles to be diluted or lost, and thereby weakening the rust prevention effect of the membrane. The infiltration of moisture may also cause changes in the physical properties of membrane materials, such as hygroscopic expansion or deformation, further affecting the membrane's sealing and protective performance. As for the duration of the anti-rust ability, once moisture enters the film, the release rate of the anti-rust agent will no longer be stable, and the anti-rust effect may significantly decline, especially in a continuously humid or high-moisture environment, where the anti-rust effect may fail within a short period of time. However, the protective film that has already formed on the metal surface can provide temporary protection to a certain extent, preventing the metal from further corrosion. But if moisture continues to seep in or the environment changes dramatically, the existing protective film may be damaged or weakened.