In the paint and varnish industry, precipitated calcium carbonates (PCC, CaCO₃) are indispensable components of modern formulations. They serve as functional fillers, improve opacity, increase mechanical stability and contribute to surface quality.
One of the most valuable properties of precipitated calcium carbonate (PCC) is its use as an extender for titanium dioxide (TiO₂) in paints. It promotes a spacing effect between the titanium dioxide particles, reducing the amount used and thus lowering the cost of formulations. PCC is synthesised using a complex manufacturing process and high-quality, high-purity raw materials. The result is a functional pigment with a very fine and uniform particle size and exceptional optical properties. Together, these properties ensure excellent opacity and whiteness in the paint formulations in which it is used.
The products of the Calmit Group are specially tailored to the requirements of the paint and coatings industry – from emulsion paints and industrial coatings to powder coatings.
Why precipitated calcium carbonate and hydrated lime are indispensable for paints and coatings
Precipitated calcium carbonate is used as a filler in emulsion and interior wall paints, ensuring high opacity, excellent whiteness and even pigment distribution. Hydrated lime products can play a role in controlling viscosity, optimising drying behaviour, breathability and ensuring a homogeneous surface. In addition, sustainable formulations increasingly rely on natural fillers to reduce the content of volatile organic compounds (VOCs) and improve the environmental balance.
Product solutions – tailored to paints & coatings
Are you developing paints, coatings or coating systems and looking for high-quality, reliable functional fillers? Our sales staff will be happy to advise you on the right products.
- Precipitated calcium carbonate (PCC) with precise particle size distribution and specific crystal structure for emulsion paints, fillers, powder coatings and high-end coatings.
- High-purity calcium hydroxides (hydrated lime) for formulations with specific requirements in terms of viscosity, drying behaviour and surface.
- Mineral products with defined grain structure for industrial paints, powder coatings and high-end coatings.
