ChameleoBoost™ by Omya offers a unique family of Calcium Carbonates for boosting opacity while optimizing formulation cost. It provides coating formulators a tool kit to either enhance coating performance (e.g. opacity) at equal formulation cost or reduced formulation cost (e.g. partial substitution of titanium dioxide) while maintaining the performance level of the coating film. Any combination of the two is also possible.
Key factors influencing the opacity of a film are: amount and type of titanium dioxide, mineral filler (size, shape, and volume), pigment volume concentration, spread rate, and film porosity.