Dolomite Powder is multi-purpose filler used in coatings and plastics. It is carefully sieved and processed with crude dolomite. Owing to its special crystalline structure, it has approximate draw ratio as superfine talc and low oil absorption as barium sulfate. Thus it is widely used in undercoat and finishes.
Basic Info：
Appearance | White Powder |
Density (g/cm3) | 2.70 ± 0.05 |
PH value | 8.0-10.0 |
Moisture Content % | ≤0.3% |
Mg O%% | 20-25% |
Ca O%% | 30-35% |
Fe2O3%%. | ≤0.1% |
Technical Data
Item/Dolomite | Dolomite DF10 | Dolomite DF5 | Dolomite DF2 |
Particle Size (mesh) | 400 mesh | 800 mesh | 1250 mesh |
Median Particle Size D50 (um) | 8-10 um | 5-6 um | 2-3 um |
Whiteness % | ≥93 | ≥93 | ≥93 |
Sieve Residue (325mesh) % | ≤0.3 | ≤0.2 | ≤0.1 |
Bulk density (g/cm3) | 1.25 ± 0.05 | 1.20 ± 0.05 | 1.18 ± 0.05 |
Oil Absorption （ml/100g） | 16~22 | 18~24 | 20-26 |
