KAOLIN FOR PAINT

Hydrous kaolin optimises paint opacity by improving Ti02

spacing

It is a particle size kaolins are more effective than calcium

carbonate or talc for this purpose.

To improve their technical properties, including optical

properties.

Hydrous kaolin is an example of a lamellar extender and is

typically used in decorative emulsion paint for its

contribution to optical properties.

The hydrous kaolin in decorative emulsion paint,

specifically matt emulsion paint.

Kaolin used in decorative emulsion paint is water washed

to remove mineral impurities and can be chemically

bleached and subjected to magnetic separation to improve

brightness and colour.

High purity, good colour and influence on low shear

rheology.

Hydrous kaolin provides a 12% higher spreading rate than

talc and a 22% higher spreading rate than CaCO3

Hydrous kaolin provides lower gloss at 85 than CaCO3

Hydro kaolin provided more than double the matting

efficiency.

Hydrous kaolin facilitates more effective TiO2 utilisation

and is also more effective matting extender than CaCO3

Plate-like materials such as hydrous kaolin can be more

effective than nodular materials.

It is producing the best overall colour, fine particle size

kaolin provides the best optical efficiency. Kaolin can also

improve rheological properties and has the better matting

efficiency.