Rust Prevention for Metal Parts ｜ Long-Term Storage with Safe, No-Clean VCI Bags

Prevent rust during long-term storage of metal parts using VCI (Volatile Corrosion Inhibitor) bag technology—safe, easy to use, and more efficient than traditional anti-rust methods.
■ Why Protect Metal Parts from Rust During Storage?
Rust forms when metal reacts with water and oxygen. Even dry-looking warehouses can accumulate enough moisture to trigger corrosion—especially in industries storing automotive parts, heavy equipment, or precision components.
Rust causes unnecessary costs from repairs, cleaning, or discarded parts. Prevention is more cost-effective than dealing with damage later.
■ What is a VCI Bag and How Does it Work?
VCI (Volatile Corrosion Inhibitor) bags release vapor-phase corrosion inhibitors that create a molecular barrier on the metal surface, preventing contact with moisture and oxygen.
Key Features of VCI Bags:
・ Protects both visible surfaces and hidden joints
・ No need to apply or remove anti-rust oil
・ Leaves no residue—parts are immediately usable
・ Compatible with carbon steel, aluminum, copper, stainless steel, and more
■ How to Use VCI Bags Effectively
Follow these steps to ensure optimal protection:
1. Clean the parts to remove oil, dust, and moisture
2. Dry completely—no water droplets should remain
3. Bag the part immediately after drying
4. Seal the bag tightly using heat or tape
5. Store in a stable, dry location away from sunlight
6. Inspect bags regularly and replace if damaged or expired
■ How to Choose the Right VCI Bag
Choose your VCI bag based on:
・ Metal Type: Match the bag’s formulation to the metal (e.g., steel, stainless, copper)
・ Storage Duration: Select protection from 1 to 5 years
・ Bag Size: Fit the bag snugly to minimize air space
・ Environment: Use thicker bags for high-humidity or variable-temperature areas
■ Why VCI Bags are Better than Anti-Rust Oil
Traditional anti-rust oil has several downsides:
・ Requires removal before use → adds time and labor
・ Can cause contamination
・ Not environmentally friendly
VCI Bags provide a modern alternative:
・ Dry protection with no cleaning required
・ Safer for operators and the environment
・ Cost-efficient and labor-saving
■ Recommended Product: VERZONE ECO Super K Rust Prevention Bag
Daiwa Fine Chemicals (Thailand) Co., Ltd.
The VERZONE ECO Super K is a nitrite-free VCI bag designed for long-term storage and shipping of metals like carbon steel and aluminum. It offers exceptional safety and environmental performance, helping factories meet Thai chemical safety regulations.
Key Benefits:
・ Nitrite-free formula → safe for people and the planet
・ Protects during transport and storage
・ No degreasing required
・ Trusted by industrial users prioritizing safety and reliability
■ To learn more or get a quote, contact Daiwa Fine Chemicals (Thailand) Co., Ltd. or download the product specs today.
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