ZERUST^® VCI capsules provide corrosion protection inside closed metal spaces such as housing of electrical and electronic equipment.  ZERUST^® capsules provide corrosion protection inside closed metal spaces such as housing of electrical and electronic equipment. Capsules contain proprietary chemical system, which emits an invisible, odorless, non-toxic vapor that diffuses throughout an enclosure. Before using of the capsules it’s necessary to calculate the volume of the space to be protected and the exact amount of capsules needed. Available with „multi-metal“ MM VCI.