Protecting electrical or control-panel enclosures from corrosion requires controlling moisture and airborne contaminants inside the enclosure while using corrosion-inhibiting products that are safe for sensitive electrical components. ZERUST® offers a full portfolio of corrosion solutions specifically engineered for electronics and electrical enclosures, ensuring that protection does not interfere with conductivity, insulation, or mechanical function. The key is to use non-conductive, non-hardening, thin-film or vapor corrosion inhibitors that do not alter electrical performance or require removal before normal operation. ZERUST® Axxanol™ 718-ESS is ideal in these environments: it leaves a thin, water-displacing, non-staining, non-hardening protective film that lubricates and shields terminals, connectors, bus bars, junction boxes, and cabinet interiors without impacting electrical resistance or operation. For vapor corrosion protection inside sealed enclosures, ZERUST® VCI diffusers and emitters, including Vapor Capsules, ZAK-M22 Capsules, ActivDri™ moisture-control packets, ICT® Plastabs®, ActivTab™(LS) tablets, ActivCapsule™ FAC1-1(S), and Cor Tab® tablets emit corrosion-inhibiting molecules that migrate throughout the enclosure, protecting metal surfaces in hard-to-reach areas without coating components. These products are safe for use around metals, plastics, elastomers, and painted surfaces commonly found inside electrical equipment.
When applying ZERUST® corrosion preventatives inside an enclosure, the best practice is to clean and dry all metal surfaces first to remove dust, oxidation, and contaminants, then apply only a thin, even film of Axxanol™ 718-ESS to exposed metal surfaces while avoiding excessive buildup near sensitive parts. VCI emitters should be mounted or placed inside the enclosure according to ZERUST® installation guidance so that vapor molecules can freely circulate. Ensure the protective film does not obstruct airflow, cooling paths, or moving components. After treatment, the enclosure can be restored to service, with follow-up inspections scheduled every 6–12 months, especially in harsh environments such as coastal areas, chemical plants, or facilities with high humidity. For best results, users can integrate these products into a strategic corrosion prevention strategy, which includes proper environmental control, correct packaging practices, and routine maintenance.
By combining Axxanol™ 718-ESS for direct metal protection with ZERUST® VCI capsules, sachets, tablets, and emitters, companies can protect electrical enclosures from corrosion without affecting electrical performance, ensuring long-term reliability, reduced downtime, and extended equipment life. For guidance on selecting the best solution for your needs, you can contact ZERUST®/EXCOR® to speak with a technical service representative.
Axxanol™ 718-ESS is an electrical corrosion inhibitor spray that leaves a thin, water-displacing, non-staining, non-hardening, soft film, providing protection against challenging environments where acid gas vapors and humidity are present.
Vapor Capsules are portable VCI emitter diffusers containing proven ZERUST® Vapor Corrosion Inhibitors (VCI). They protect metals in hard-to-reach areas of control panels, electrical cabinets, or other enclosed spaces from corrosion, even when they are in operation. Additionally, use these VCI emitter diffusers as a supplement to other ZERUST® VCI packaging products for added protection.
ZAK-M22 Vapor Capsules are portable VCI capsules containing proven ZERUST® VCI technology, used to protect metals in hard-to-reach areas of control panels, electrical cabinets, or any other enclosed spaces from corrosion. Each capsule has a QR code printed on the label to facilitate scheduling its replacement schedule.
ActivDri™ PWA Packets are patent-pending, economical, effective, and easy-to-use dual-action, moisture control Vapor Corrosion Inhibitor (VCI) packets that protect against environmental contaminants and humidity that aggressively corrode metal parts, components, electronics, and electrical components/equipment
ICT® Plastabs® are thin, light, rigid polyethylene VCI emitter plastic tabs that are made with ZERUST® Vapor Corrosion Inhibiting (VCI) technology. Their small, thin shape makes Plastabs® perfect for protecting critical surfaces within narrow or hard-to-reach areas of electronics or parts of equipment or as a supplement to other ZERUST® VCI packaging products for added protection.
ActivCapsule™ FAC1-1(S) is a drop-in capsule containing proven ZERUST® Vapor Corrosion Inhibitor (VCI) technology used as a flash-corrosion prevention product to protect metals from corrosion in hard-to-reach areas in almost any enclosure or as a supplement to other ZERUST® VCI packaging products for added protection.
Cor Tab® are compressed drop-in VCI tablets that provide superior corrosion protection for metal surfaces and metal items in small or hard-to-reach areas of enclosures, such as electronic instruments, computer parts, small metal parts, inside tool chests, and more.
