R6638 is a silicon, aluminum inorganic and organic surface treated rutile titanium dioxide, it has average particle size distribution, good water dispersion, good hiding power and high weather resistance properties. It is mainly used in water-based system which demand high water dispersion, such as paper-making, water-based coating(especially interior and exterior emulsion paint), and water-based ink production.
Application Areas: Paper-making, Water-based paint, Water-based ink
Packing: 25kg paper bag 500kg and 1000kg bag
Quality index | Technical requirement |
The content of titanium dioxide, % | ≥93.0 |
Brightness | ≥97.5 |
PH value of aqueous suspension | 6.5~8.5 |
Tinting Strength (Compared with the standard sample) | ≥106~110 |
The content of rutile, % | ≥97.5 |
Oil dispersion (Hegman) | ≥6.0 |
Residue on sieve(45μm), % | ≤0.02 |