Does Expanded Metal Rust Faster? Here's Why

Expanded metal is known as a strong and functional material for various building applications, from stairs and railings to facades. However, in the field, the question often arises: why does expanded metal seem to rust more quickly than other metal materials? This condition is generally influenced by several technical factors that need to be understood from the outset.

1. More Exposed Surface Area
Expanded metal has a hollow structure that creates a larger surface area. The greater the surface area exposed to air and moisture, the greater the potential for oxidation or rust.

2. Humid or Extreme Installation Environments
Using expanded metal in outdoor areas, near the sea, industrial areas, or environments with high humidity can accelerate the corrosion process. Exposure to rain, water vapor, and airborne chemicals are the main factors that trigger rust.

3. Not Using the Right Finish
Expanded metal without additional protection such as galvanizing or anti-rust coating is more susceptible to corrosion. Incorrectly selecting the right finish is often the main cause of a shortened material lifespan.

4. Improper Storage
Before installation, expanded metal stored in open areas or in direct contact with the ground is at risk of rusting in the warehouse or project site. This initial rust often goes unnoticed until the material is installed.

5. Damage to the Protective Coating During Handling
Careless cutting, transporting, or installation can damage the protective coating on expanded metal. Damaged areas become the initial point for rust to spread.

6. Substandard Material Quality
Expanded metal made from low-quality raw materials or with poor production processes is more susceptible to corrosion. Therefore, supplier selection is a crucial factor in maintaining material quality.

How to Reduce the Risk of Rust on Expanded Metal
Some preventative measures that can be taken include:

Use expanded metal with a galvanized finish or special coating

Store the material in a dry, protected location

Avoid impacts that damage the protective coating

Choose material specifications according to the installation environment

Conclusion
Expanded metal can rust more quickly if not handled and selected properly. By understanding the causative factors, the risk of corrosion can be minimized and the material's lifespan can be optimized.

To ensure the expanded metal you use is durable and meets your project's needs, entrust your material selection to an experienced distributor.
PT Intisumber Bajasakti (ISBS) provides quality expanded metal with a choice of finishes suitable for various environmental conditions.

📞 Phone: 021-66675999
🌐 Web: intisumberbajasakti.com
✉️ Email: info@intisumberbajasakti.com

Contact the ISBS team now for a consultation on the most appropriate and durable expanded metal specifications for your project.

Back to List