Nano Silica

• Product Specifications

• Addition Amount

Research has demonstrated that incorporating 2% nano silica into coatings can markedly improve their hardness, adhesion, weather resistance, viscosity, anti-settling properties, and overall stability. The suggested addition level is typically between 0.5% and 2%, though for some specialized formulations, the content may exceed 10%, depending on the specific system and application needs.

• Key Benefits

• Scrub Resistance: Nano silica can boost the scrub resistance of coatings to tens of thousands of cycles.
• Weather Resistance: Incorporating the right amount of nano silica significantly enhances UV aging resistance in standard coatings.
• Stain Resistance and Self-Cleaning: Coating performance can be improved by (1) leveraging nano silica's microporous structure to form complementary nanoscale surface patterns that trap air and create a protective gas layer, and (2) surface-treating silica particles to make them amphiphilic or superhydrophobic, improving water repellency and reducing dust adhesion.
• Transparency: Nano silica maintains the clarity of nanomodified coatings while enhancing abrasion resistance, allowing for highly wear-resistant transparent finishes.
• Hardness: When dispersed uniformly, nano silica particles act like rigid chains, reinforcing organic matrices and increasing the hardness of UV-cured coatings.
• Thermal Stability: Nano silica can raise the glass transition temperature of UV-cured coating films.
• Viscosity: The inclusion of nano silica also increases coating viscosity.