As a supplier to the refractory industry, we know what is important: absolute reliability. Casting molds and risers made of ceramic materials must withstand extreme physical and chemical stress. The carefully tested formulations are based on the constant quality of the ingredients used. We at Ceramix are aware of this particular responsibility: our Nanospheres meet the highest demands and are already used successfully by numerous leading European and international manufacturers. Thanks to this experience we can particularly recommend the following microspheres for use in the refractory sector (castings/refractories in general).