NTIC is a “Critical Sector” company that remains open for business! NTIC Stakeholder Update On COVID-19 →

ZERUST® ActivDri™ Packets

ZERUST® ActivDri™ Packets are patent-pending, economical, effective, and easy-to-use dual action, moisture control vapor corrosion inhibitor (VCI) sachet products.


  • Protects metal parts and electrical components from corrosion
  • Reduces the risk of delays, shutdowns, etc., due to electrical failures that result in power outages
  • Extend the service life of expensive electrical equipment and components
  • Prevents moisture condensation
  • Prevents sulfur corrosion in high-humidity environments that contain SOx
  • Minimal user training is required
  • Easy to apply and use
  • Effective in mitigating corrosion issues through a dual mechanism of desiccation and VCI emission
  • Safe to dispose of in industrial landfills and incineration
Product Description

Product Description

ActivDri™ Corrosion Prevention and Moisture Control Packets protect against environmental contaminants and humidity that aggressively corrodes metal parts, components, electronics, and electrical components/equipment. Corroded metal components will lead to quality rejects, while corroded electrical components may cause system reliability issues, system malfunction, and intermittent connection errors, resulting in production stoppages and safety hazards.

Use ActivDri™ packet’s dual-acting moisture and corrosion control to protect highly sensitive metal parts and electrical components from corrosion damage during operation, shipping, and storage. Contact your ZERUST® rep for more information on how to apply ZERUST® ActivDri™ corrosion prevention and moisture control packets to your specific application.


ActivDri™ Corrosion Prevention and Moisture Control Packets Protection Capabilities

Product Name  Physical Dimensions+
Protected Metal Types
Normal Environment**
Volume of Protection
(Up to)
Duration of Protection
(Up to)
ActivDri™ PWA5 2” x 4” Multimetal* 3.5 ft³ (0.1 m³) 12 months
ActivDri™ PWA10 3 2/5” x 4” 7 ft³ (0.2 m³)
ActivDri™ PWA25 3 2/5” x 5” 17.5 ft³ (0.5 m³)
ActivDri™ PWA50 3 2/5” x 5 1/2” 35 ft³ (1.0 m³)
ActivDri™ PWA100 3 2/5” x 6 1/2” 53 ft³ (1.5 m³)

* ActivDri™ PWA chemistry is designed for ferrous metals (carbon steel, silicon steel, stainless steel, cast iron) and aluminum surfaces. A mixed acid gas test (IEC 60068-2-60 Method 4) by an independent lab was completed, which showed compatibility with yellow metals and silver.
** Normal environment (below 0.2 ppm SO2)
+ +/- 10%. Product sold in US customary units/sizes. Metric units approximate.



ZERUST®/EXCOR® ActivDri™ Corrosion Prevention and Moisture Control Packets are in stock and sold in cases.

Part Number Model Volume of protection (Up to)‡ Quantity
375-M-00212 PWA5 3.5 ft³ (0.1 m³) 1,000/Case
375-M-00213 PWA10 7 ft³ (0.2 m³) 500/Case
375-M-00214 PWA25 17.5 ft³ (0.5 m³) 200/Case
375-M-00215 PWA50 35 ft³ (1.0 m³) 100/Case
375-M-00210 PWA100 53 ft³ (1.5 m³) 50/Case