Skip to content 
| Specification | Details |
| Material Structure | Polyethylene (PE) embedded with VCI vapor corrosion inhibitors . |
| Available Thickness | 0.03mm – 0.25mm (Customizable) . |
| Standard Colors | Transparent, Blue, Green, Yellow (Custom colors available) . |
| Bag Styles | Flat Bags, Gusseted Bags (M-Type), Zipper/Resealable Bags, 3D Bags . |
| Custom Sizes | Yes, with a maximum width of up to 8 meters available . |
| Protection Period | 2 years or more (when used correctly and sealed) . |
| Compliance & Certifications | Complies with SGS and RoHS environmental standards . |
VCI Square-Bottom Bag is a 3D protective packaging solution designed for medium and large metal components. Its square-bottom structure, combined with multi-layer VCI co-extrusion film technology, provides excellent gas-phase rust protection while supporting heavy loads.
The bag prevents moisture, dust, and physical damage, making it ideal for long-term storage and cross-border transportation of complex-shaped industrial parts.
The bottom is seamlessly integrated as a single piece, offering superior load-bearing performance compared to traditional folded-edge bags.
The square design improves space utilization and facilitates stacking management.
Dual Protective Action
Provides vapor-phase and direct-contact protection.
Reaches hard-to-access areas and internal surfaces, while the bag surface blocks moisture and dust.
Ready-to-Use & Clean
Metal parts can be used immediately after unwrapping.
Eliminates the need for cleaning or degreasing, saving time and labor.
Cost-Effective Solution
Reduces scrap, rework, and returns caused by rust.
Streamlines packaging, offering high ROI.
Environmentally Friendly & Safe
Non-toxic and safe for users.
A clean alternative to grease coatings or oils.
Transparent & Identifiable
Allows visual inspection without opening the bag.
Strong & Sealable
Durable PE material, easily heat-sealed or taped for a secure package.
VCI Square-Bottom Bags protect metal components across many industries:
Automotive & Machinery
Engine parts, bearings, tools, valves, and full machinery during storage and shipping.
Electronics & Electrical Equipment
Circuit boards, connectors, and control panels.
Aerospace & Defense
Aircraft components, avionics, and ammunition.
Hardware & Metalworking
Fasteners, hand tools, castings, and stamped parts.
Industrial Supplies
Pumps, motors, and spare parts in inventory.
Q1: How do the bags protect metals?
VCI compounds inside the bag vaporize, filling the air space. They condense on exposed metal surfaces, forming an invisible protective layer that stops corrosion.
Q2: Are these bags suitable for all metals?
Yes, standard bags work with steel, iron, copper, brass, aluminum, chromium, zinc, and alloys. For specialized combinations, consult our technical team.
Q3: How should I use the bag for best results?
Ensure metals are clean and dry.
Wear gloves to avoid contamination.
Place items inside and seal tightly (heat or tape).
Protect sharp edges to prevent punctures.
Q4: What is the shelf life?
12–36 months when stored in a cool, dry place away from sunlight.
Q5: Can the bag be reused?
Use a new bag each cycle. Once opened, the VCI vapor escapes, reducing protection.
Q6: Minimum Order Quantity (MOQ)?
Contact our sales team to discuss based on your size and specifications.
Optimized by Seraphinite Accelerator
