During transit and storage, moisture or condensation may cause irreversible damage to highly sensitive electronic equipment. This can lead to great losses if the equipment is very expensive or its surface is critical. There are several ways of protecting electronic equipment shipped to and from humid and tropical areas. Moisture-vapor barrier packaging, desiccants and corrosive gas scavenging bags have been used with various levels of success. Use of vapor phase corrosion inhibitors (VCIs) is one type of protection that is gaining wider acceptance. The cost savings ensuing the switch to VCI technology
results in a substantial amount of money. Corrosion testing, long-term exposure effects and performance in typical applications were
investigated. The results are presented in this paper.