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ZERUST® Vapor Capsules

ZERUST®/EXCOR® Vapor Capsules are portable capsules that contain patented ZERUST® VCI technology. Use these VCI emitter diffusers to protect metals in hard-to-reach areas of control panels, electrical cabinets, and other enclosed spaces, even when they are in operation. In addition, these VCI emitter diffusers may be used as a supplement to other ZERUST® VCI packaging products for added protection.


  • Safe* and effective corrosion protection where traditional anti-corrosion methods can not be used.
  • Easy to install, economical to use.
  • Does not affect the circuit boards or sensitive components.
  • Suitable for new equipment and to protect the reliability of existing equipment.
Product Description

Product Description

Use ZERUST®/EXCOR® Vapor Capsules to protect multiple metal types from corrosion in almost any enclosure or sealed packaging. ZERUST® VCI emitter diffusers emit Vapor Corrosion Inhibitor Technology (VCI) that prevents oxidation of the metal surface that causes rust. As a result, they provide targeted corrosion protection in hard-to-reach spaces and additional protection to metals in ZERUST® VCI packaging applications.

ZERUST® capsules are quick and easy to install. Simply peel back the protective paper from the adhesive tape and install it securely in the desired location. Next, tightly seal the enclosure to trap protective vapor inside. Metals will be protected from rust and tarnish for up to one or two years, depending on the capsule model and environment.

Model Volume of Protection
(Up to)
Protection Radius
(Up to)
Protection Duration
(Up to)
VC 1-1 (S) 4 ft³ (0.12 m³) 1 ft (30 cm) 1 year
VC 1-1 4 ft³ (0.12 m³) 1 ft (30 cm) 1 year
VC 2-1 35 ft³ (1 m³) 2 ft (60 cm) 1 year
VC 2-2 35 ft³ (1 m³) 2 ft (60 cm) 2 years
VC 6-1 900 ft³ (25 m³)  6 ft (200 cm) 1 year
VC 6-2 900 ft³ (25 m³) 6 ft (200 cm) 2 years




ZERUST® Vapor Capsules are in stock for immediate delivery. Sold in cases.

Product Name / Part Number National Stock Number (NSN) Volume of protection (Up to)‡ Quantity
VC1-1(s) / 375-M-00006 6850-01-426-3539 4 ft³ protection- Multimetal 50/Case
VC1-1 / 375-M-00001 6850-01-338-1393 4 ft³ protection- Multimetal 50/Case
VC2-1 / 375-M-00002 6850-01-475-9949 35 ft³ protection- Multimetal 25/Case
VC2-2 / 375-M-00003 6850-01-133-0373 35 ft³ protection- Multimetal 10/Case
VC6-1 / 375-M-00004 6850-01-590-1676 900 ft³ protection- Multimetal 4/Case
VC6-2/ 375-M-00005 6850-01-348-1090 900 ft³ protection- Multimetal 4/Case