KaMin Calcined Kaolin Clays

Calcined Clays: KaMin 70C, KaMin 100C, KaMin 2000C

Calcined kaolin clay is produced when hydrous kaolin is heated to over 1000°C. The crystal structure of the calcined clay becomes amorphous. The rearrangement of the crystal structure of kaolin which comes with a loss of hydroxyl groups makes calcined clays harder, more abrasive and more porous than their water-washed counterparts. Calcination results in air voids within the clay particle (air – solid interfaces) thereby increasing light scattering and contributing to dry hide.

Key Features

KaMin 70C: High brightness, medium particle size, calcined kaolin. It has moderate oil absorption and water demand. KaMin 70C incorporates readily into solvent and water-borne coatings, where it imparts TiO2 extension, brightness (whiteness), scrub resistance and sheen control. KaMin 70C is the workhorse of the industry. Typical use: flat and low sheen architectural coatings.

KaMin 100C: Unique, ultra low moisture, high brightness, medium particle size, calcined clay. It has moderate oil absorption. Due to an enhanced manufacturing process, the moisture content of KaMin 100C is kept below 0.1500 % moisture in unopened packaging. KaMin 100C incorporates readily into both solvent and solvent-free systems, where it imparts reinforcement, TiO2 extension and brightness. Calcined clay has few hydroxyl groups and gives a Newtonian viscosity behavior. Typical applications are one-part moisture curing systems, two-part polyurethane adhesives and sealants, moisture-curing silane terminated polymer systems, and moisture sensitive applications in special plastic compounds, Wire & Cable and other Rubber Goods.

KaMin 2000C: KaMin’s highest brightness, finest particle size, calcined kaolin clay. It has high oil absorption and water demand. KaMin 2000C incorporates readily into solvent and water-borne coatings and inks, where it imparts sheen control and maximum TiO2 extension, tint strength, and brightness (whiteness). Typical use: inks and flat architectural coatings.

Recommended Applications

• Architectural Coatings
• Industrial Coatings
• Flat/Matte, Satin
• E-Coat
• Powder Coatings
• Adhesives & Sealants
• Rubber
• Plastic
• Polyurethane Adhesives
• Hotmelt Adhesives
• Wire & Cable
• Inks