Signs of Corrosion:

Corrosion is a natural process that occurs when metals react with their environment. In the case of fasteners, exposure to moisture, oxygen, and other corrosive elements can lead to degradation over time. Common types of corrosion in fasteners include rusting, galvanic corrosion, and stress corrosion cracking. Identifying fastener corrosion requires a keen eye for certain visual cues and potentially employing testing methods. Signs of corrosion are not always immediately visible; hence, it is important to understand what to look for and how to identify it. Here are some signs you should look out for:

1. Discoloration: Changes in color, such as rust-like spots or darkening, on the surface of the fastener.
2. Formation of White Rust: For galvanized fasteners, the appearance of powdery white deposits indicates zinc corrosion.
3. Surface Roughness: Texture changes, such as roughness or pitting, caused by corrosion.
4. Structural Change: Weakening or brittleness of the fastener due to corrosion-induced material loss.
5. Visual Deterioration: Visible signs of deterioration or degradation, such as flaking or scaling, on the fastener's surface.
6. Leaks or Seepage: Presence of leaks or seepage around fasteners, suggesting corrosion-induced material breakdown.

Your Solution to Corroded Fasteners:

The solution to corroded fasteners varies depending on the extent of corrosion and the specific application. In many cases, cleaning the surface corrosion through methods like wire brushing or chemical treatments. However, it could take up plenty of man hours for your business or projects. The most effective and sustainable way would be to invest in protective coatings that prevent further corrosion. For severe cases, replacing fasteners with corrosion-resistant materials or coated options may be necessary.

Here at Engineering Edge Singapore, we provide CORROSHIELD® fasteners that are designed to withstand harsh environments without corroding. Download our CORROSHIELD® brochure here. Our innovative coatings also cater to various conditions, ensuring long-lasting performance. Take a look at our coating guide here. Additionally, our fasteners undergo rigorous testing, including Salt Spray Tests, to validate their durability.

The Salt Spray Test simulates a harsh and corrosive environment. It replicates the harsh conditions of saltwater exposure over time. The fasteners are placed inside a chamber where a salt solution is sprayed onto its surface, creating a corrosive atmosphere. This test aims to evaluate the fastener's resistance to corrosion by simulating the effects of saltwater, which is known to accelerate corrosion processes. Over the testing period, which can vary depending on standards and requirements, the fastener's performance is closely monitored to assess its durability and suitability for use in corrosive environments. Visit our blog to learn more about the Salt Spray Test. Additionally, we conduct various other tests to guarantee the durability and quality of our fasteners. Read more on Blog Testing Fastener's Durability here.