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Vapor Capsule Diffusers by Zerust

Vapor Capsule Diffusers by Zerust
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Zerust/Excor Vapor Capsules are portable capsules that contain patented Zerust VCI technology. Use to protect metals in hard to reach areas of control panels, electrical cabinets and other enclosed spaces, even when they are in operation. Or use as a supplement to other Zerust VCI packaging products for added protection.

Use Zerust®/Excor Vapor Capsules to protect multiple metal types from corrosion in almost any enclosure or sealed packaging. Zerust diffusers emit Vapor Corrosion Inhibitors (VCI) that prevent oxidation of the metal surface that causes rust. 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 securely in desired location. 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.



  • 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.


VC1-1(S) VC1-1 VC2-1 VC2-2
VC6-1 VC6-2


Coverage Specifications - Multimetal Protection

Product Name Volume of Protection Redious of Protection Duration of Protection Adhesive Backing Quantity
VC1-1 (S) 4 ft3 (0.1 m3) 1 ft (0.3 m) 1 year Yes 50/Case
VC1-1 4 ft3 (0.1 m3) 1 ft (0.3 m) 1 year Yes 50/Case
VC2-1 35 ft3 (1 m3) 2 ft (0.6 m) 1 year Yes 25/Case
VC2-2 35 ft3(1 m3) 2 ft(0.6 m) 2 years Yes 10/Case
VC6-1 900 ft3 (25 m3) 6 ft (2 m) 1 year No 4/Case
VC6-2 900 ft3(25 m3) 6 ft (2 m) 2 years No 4/Case



Products with or without adhesive may need to be secured with a cable tie. Particularly when vibration, cold or surface contaminants may cause the adhesive to be ineffective over time.