Obtained by a chemical precipitation process, it allows a special chemical purity and ultrafine particle sizes. Blanc fixe enhances brilliance in many coatings and acts as a pigment disperser both in coloured systems as a distancer between white and coloured particles and thus increased effectiveness of coloured pigments. The special type Blanc Fixe ZB-X is easly dispersable compared to the standard type Blanc Fixe ZB. Other properties are identical.