What is Kaolin?
Kaolin is one of the most indispensable fillers in the paint industry; a natural clay raw material, containing Ca and Na. It is a raw material characterized by kaolinite mineral. In industrial use, it is included as calcined in the production part under kaolin. The raw materials in which kaolinite is enriched and used in kaolinitic and others are included in clay raw materials. The brightness, corrosivity, viscosity and grain size distribution- max grain size-shape and the rheology (water + clay behavior) of these kaolins are very important. All these properties are determined by the conditions of formation of kaolin and improved by post-production processes.
Formation of Calcine Kaolin
During the removal of kaolin from nature, there are undesirable impurities in it. These impurities and some of the water contained in the kaolin are removed from the kaolin by Calcination process. Calcined Kaolin is a form in which kaolin is subjected to calcination process at approximately 1100°C to provide superior optical and physical properties. It is used in paint, plastic, rubber, polymer, paper, adhesive and ceramic industries.
Kaolin in the Paint Industry
They are natural minerals on the basis of filling materials. These minerals; most natural state after processing, micritization (shredding), is obtained after separation. In order to obtain or modify certain technical properties, they are insoluble in the medium in which they are applied and are bulk-powdered substances. The industrial minerals used for filling purposes significantly affect the quality and performance of the paint.
At the same time, filling materials reduce the cost of formulation; it also has the advantage of improved film formation, rapid collapse prevention, increased weather resistance and consequently reducing the rate of passage of moisture.
Although it has the advantage of reducing the cost of titanium dioxide, especially in the formulation, it has many similar features.
As Günkem; in the painting industry we are understanding the difference of calcine kaolin as productprice- quality.
The collaboration between Inner Mongolia Super Building Material Technology Co., LTD which is one of China’s largest manufacturers of calcined kaolin and Günkem, the market share of high-quality Calcined Kaolin is expanding day by day.
CALCINED KAOLIN DG80; while reducing the cost of your applications, it contributes to your color and performance value. It can be used in both waters based and solvent based applications as well as electrophoretic paints and inks. In addition, its high whiteness, it provides uniform particle distribution, high dispersibility and thixotropy. At the same time, high gloss and covering increase production quality.
CALCİNED KAOLİN DG80 series is used in paint and coating industry. Product features are as follows:
Gizem Sarp – Chemical Engineer – Sales and Business Development Director – Günkem
