
Product Description
Qebui KL-2020 is a pure aluminum silicate with ultra-high brightness and finer particle size. It features excellent opacity, strong tint strength, low residue and easy dispersion.
Application information
Qebui KL-2020 is specially designed for coating industry with ultra-high brightness and particle size distribution. While impacting opacity to coatings, it can improve gloss, brushability and stability of coating, enable non-separation of layers after long storage, therefore preventing flooding and floating problem. It can also enhance film mechanical properties and moist-proof ability as well as impact resistance of coatings system. Qebui KL-2020 plays a role in shielding UV, improving coatings properties like weather fastness, anti-corrosion, heat resistance, acid and alkali resistance, etc.
| Typical Properties | |
| Physical Form | Highly Pulverized Powder |
| ISO Brightness (%) | 94.5 Min. |
| Screen Residue, 325 Mesh (%) | 0.005max |
| Free Moisture @ 105 deg C (%) as produced | 0.5max |
| pH (28% solids) | 6.0-7.0 |
| Specific Gravity (g/cm3) | 2.63 |
| Sedigraph Particle Size (%<2μm) | 76±2 |
| Oil Absorption (g/100g ) | 58-63 |
| Bulk Density (kg/m3) | 420 |
| Hegman | 4.0Min |
Chemical Component(%)
| SiO2 | Al2O3 | Fe2O3 | TiO2 | K2O | Na2O | CaO | MgO |
| 52.0±1 | 45.0±1 | ≤0.50 | ≤0.80 | ≤0.10 | ≤0.20 | ≤0.50 | ≤0.20 |