Performance & Formulation Insights for SDI Black IO AS
The Advantage of Triethoxycaprylylsilane Surface Treatment
SDI Black IO AS is an iron oxide pigment surface-treated with Triethoxycaprylylsilane, transforming the pigment from hydrophilic to hydrophobic. This advanced silane coating builds strong affinity to oils, esters, and silicones for superior dispersibility, minimizing agglomeration and streaking. The result is a smoother, more uniform color laydown across liquid, cream, and anhydrous systems.
Technical Benefits in Modern Formulations
The hydrophobic nature of SDI Black IO AS is essential for long-wear and water-resistant cosmetics. By repelling water and sweat, it helps maintain deep color integrity and reduces smudging or fading throughout the day. The silane treatment also imparts a creamy glide and enhanced blendability, improving both press-ability in powders and sensory feel in liquids and gels.
Key Formulation Benefits
- Enhanced Long-Wear: Hydrophobic surface repels water, sweat, and humidity to extend wear time.
- Superior Dispersibility: Easily wets and disperses in oil/silicone phases for uniform color without clumping.
- Improved Skin Feel: Silane treatment delivers a smooth, creamy texture and excellent blendability.
- True Matte Finish: High-purity CI 77499 provides an intense, deep black, non-reflective matte look.
- Clean Beauty Ready: TiO2-free, vegan, and cruelty-free to align with modern formulation standards.
