Hydrophobic Nano SiO2 Powder CAS 7631-86-9 for Industrial Water Repellent Self-cleaning Coating
Hydrophobic Nano SiO₂ Powder CAS 7631-86-9 is organically surface-modified silica powder. It has excellent hydrophobicity and favorable dispersibility in solvent systems. It can form micro-nano rough structure on coating surface, widely applied to manufacture industrial water repellent and self-cleaning coatings.
Hydrophobic Nano SiO₂ Powder CAS 7631-86-9 for Industrial Water Repellent Self-cleaning Coating
Product Overview
Hydrophobic Nano SiO₂ Powder (CAS 7631-86-9) is nano silicon dioxide with organic hydrophobic surface modification. Thanks to low surface energy and good dispersibility in solvent-based resin systems, it can build micro-nano rough structure on coating surface after film forming. The material endows coatings with prominent water repellent, anti-fouling and self-cleaning effects, and also improves scratch resistance, weather resistance and hardness of coating layers. It is a key functional additive for industrial hydrophobic and self-cleaning coatings.
Core Features
- Excellent Hydrophobic Performance: Low surface energy, form high water contact angle on coating surface.
- Good Dispersibility: Effectively reduce agglomeration, compatible with various solvent-based coating resins.
- Self-cleaning & Anti-fouling Function: Water rolls off surface to take away dust and dirt.
- Enhanced Coating Hardness: Improve scratch resistance, wear resistance and weather stability of coatings.
- Stable Formula Adaptability: Less influence on curing speed and storage stability of coating system.
- Adjustable Transparency: Keep good light transmittance for transparent coating formulas.
Product Specifications
Product Name: Hydrophobic Nano SiO₂ PowderCAS No: 7631-86-9Appearance: White fine powderMain Component: Nano Silicon DioxideSurface Treatment: Organic hydrophobic modificationCore Functions: Water repellent, self-cleaning, anti-fouling, coating hardness improvementApplicable Systems: Solvent-based coatings, solvent-free resin systems
Application Scope
This hydrophobic nano silica powder is widely used for industrial functional coatings:Building exterior self-cleaning coating, metal anti-corrosion hydrophobic coating, glass anti-fouling coating, plastic surface water repellent coating, automotive functional coating, stone waterproof protective coating and other self-cleaning & waterproof coating products.
Usage Guide
Dry the powder in advance if moisture absorption occurs. Add the powder together with dispersant during grinding stage. Medium-speed high-shear dispersion is recommended to obtain uniform slurry. Carry out small batch formulation tests to determine optimal addition amount. Seal materials to prevent moisture absorption before processing.
Packaging & Storage
Packaging: 20kg inner plastic woven bag, customized packaging is acceptableStorage: Keep tightly sealed in cool, dry and ventilated warehouse, avoid damp environmentShelf Life: 12 months under original sealed storage conditions
Our Advantages
Our hydrophobic nano SiO₂ powder adopts mature surface modification process with stable hydrophobic effect and consistent batch quality. It achieves balanced performance of hydrophobicity, dispersion and transparency. Particle size and modification degree can be customized according to coating requirements. Factory direct supply guarantees stable stock and fast delivery. Free sample testing and coating formulation technical support are available for coating manufacturers.
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