VpCI ® emitting systems include cups, foams, and pouches that are easy to install inside everything from electronics packages to non-ventilated electrical control cabinets and junction boxes in operation. These emitting systems release Vapor phase Corrosion Inhibitors into the enclosed space. The vapor deposits on metal surfaces and forms a non-conductive molecular layer that helps reduce corrosion in the enclosure and does not interfere with electrical, optical, or mechanical surface properties.