FNX-7900 is an untreated precipitated silica matting agent with medium particle size, offering high matting efficiency, good transparency, excellent surface smoothness, and low impact on coating viscosity.
Developed by a technical team with first-hand experience in the industrial production of internationally established silica matting agent grades, FNX-7900 builds on extensive manufacturing expertise with further process optimization and tighter control of key production parameters. The result is highly consistent product quality and performance, together with a competitive cost structure. FNX-7900 is positioned as a high-performance alternative to ACEMATT 790 for coil coatings and a wide range of industrial coating systems.
| Properties | Unit | FNX-7900 |
| SiO₂ content | wt.% | ≥99.0 |
| Loss on drying (105°C, 2h) | wt.% | ≤7 |
| Loss on ignition (1000°C, 2h) | wt.% | ≤6 |
| Whiteness | - | ≥98 |
| pH (5% aqueous suspension) | - | 6.8 |
| DBP absorption | g/100g | 255–295 |
| Particle size D50 | μm | 6.0–8.0 |
| BET surface area | m²/g | 280–320 |
| Conductivity (25°C) | μS/cm | ≤80 |
| Sodium (Na) | wt.% | ≤0.5 |
| Iron (Fe) | ppm | <120 |
| Surface treatment | - | Untreated |
FNX-7900 is particularly well suited for:
General industrial coatings requiring efficient and uniform gloss reduction.
Coil coatings requiring low sheen and reliable processing performance.
Architectural coatings requiring good matting efficiency and surface appearance.
Wood coatings requiring a smooth, uniform matte finish.
Coil coatings requiring low sheen and reliable processing performance.
Polyurethane coatings requiring effective gloss control with good transparency.
1.5–7.0% based on the total formulation.
FNX-7900 may be incorporated directly into the coating system or added as a pre-dispersion. For optimum matting performance, addition during the high-speed dispersion stage is recommended.
