Reference

Micaceous iron oxide (MIO) pigments offer several advantages when used in coatings, particularly for steel structures and other metallic surfaces. Here are some key benefits:

1. Corrosion Resistance: The flake-shaped structure of MIO pigments creates a multi-layered barrier within the coating. This barrier is very effective in blocking moisture, oxygen, and other elements that can cause corrosion. As a result, MIO-based coatings provide excellent long-term protection against rust and corrosion (source).

2. Barrier Protection: The lamellar structure of MIO pigments enables them to form tightly interlocked layers. This enhances the barrier properties of the coating, making it difficult for any corrosive agents to penetrate through to the substrate (source).

3. UV Resistance: MIO pigments also provide protection against ultraviolet (UV) light, which can degrade paints and coatings over time. This makes them suitable for outdoor applications where exposure to sunlight is a key concern.

4. Chemical Stability: MIO pigments are chemically stable and do not rust further, making them ideal for protective coatings on steel and other metallic surfaces (source).

5. Mechanical Strength: The presence of MIO pigments can enhance the mechanical strength of the coating, improving its resistance to physical wear and tear.

6. Aesthetic and Color Options: Though true MIO pigments are usually dark grey to black, they can be blended with other materials to create different shades and appearances that maintain the protective qualities of MIO (source).

These properties make MIO-based coatings highly desirable in industrial, marine, and architectural applications where long-lasting protection is crucial.

Below are a few images that show MIO coatings: