EXCOR ZERUST Capsules have been specially designed for the protection of electrical and electronic equipment such as switchboards. EXCOR VCI corrosion protection is provided within a defined radius. EXCOR offers customers ZERUST capsules which remain effective for approximately one to two years, depending on how well sealed the surrounding space or packaging is. EXCOR ZERUST Capsules should be positioned as centrally as possible within the packaging and as close as possible to the metal requiring protection. A self-adhesive strip on the back of each capsule makes them easy to attach.