Decorative Coatings
The endless opportunities for modifying the optical and mechanical properties of paints and coatings with calcium carbonate make this mineral particularly fascinating.
Interior emulsion paints are without a doubt the most important applications of calcium carbonates in the coatings industry. Calcium carbonate contributes to the opacity of emulsion paints formulated above the critical pigment volume concentration. Depending on the formulation the calcium carbonate content can be as high as 60% by weight.
Calcium carbonate also benefits exterior emulsion paints and brushing enamels by providing economic advantages with no loss in technical performance. In these applications the pigment volume concentration is generally lower and the filler loading is consequently lower.
| Application | Calcium Carbonate Content |
| Interior emulsion paints | up to 60% |
| Exterior emulsion paints | up to 50% |
| Brushing enamels | up to 15% |
Omya offers an extensive range of standard and specialty products with different particle sizes and optical values. Filler selection can significantly influence paint properties. Sheen, opacity and wet scrub resistance can all be modified to improve final paint properties. This ability to enhance paint performance is why calcium carbonate should be regarded as a functional filler and not simply as an extender.
High Quality
State-of-the-art technology is used to manufacture calcium carbonate products that are tailor-made for a variety of applications.
