For more than 120 years CIRKEL is manufacturing CalciumSilicateHydrate (CSH) products. Our long-standing experience with the natural and regional raw materials lime, sand and water enable us to produce specific, sophisticated CalciumSilicateHydrate (CSH) products for a variety of applications.  For example, as multifunctional mineral in products for the paints industry, paper industry as well as in friction material industry.

Our plant in Emsdetten manufactures the purest synthetic CalciumSilicateHydrates (CSH) products in a special hydrothermal process, which are then processed into granulate, powder or slurry products.

The multifunctionality of our products is highly valued by our customers because the properties of the final formulations/systems in various applications are enhanced.  In the field of friction technology, the product of choice is our CIRCOLIT®-powder.