Huber Engineered Materials has a high-peforming TiO2 spacer for you to consider: Optifil® JSU calcium carbonate. Optifil JSU is an ultrafine ground calcium carbonate product grade produced from a specialty ore deposit. It has a median particle size of 1.0 and its soft ore body results in a more rounded shape (see the electron micrograph at right), which promotes dispersion and less crowding. The milling process also results in roughly 40% of the particles by weight being less than 1 micron, an ideal size for spacing TiO2. It is for use in interior applications. Order your sample today!