Compared with traditional filtering materials, GMI™ CERAMIC FOAM FILTER have obvious advantages：1) Thermal and chemical stability in high temperature，avoiding the chemical reaction with the filtered molten metal. 2) High porosity and good mechanical strength in elevate temperature due to its pure ceramic composite. 3) Full open cell without loosing ceramic particles or powders (snowing) during filtrating. 4) Low head loss, easy operation, energy save. 5) Make metal flow reposeful and avoid the sputtering and backset, this increase the surface quality of the cast, prevent the pore disfigurement and finally lower down the waster rate. 6) Various sizes, shapes, apertures are available for kinds of foundry technique.
GMI™ CERAMIC FOAM FILTER are characterized as high permeation rate, good strength and thermal shock resistance, stable quality and without loosing impurity in high temperature either in big size or small PPI products. Four types of ceramic foam filters are available.G200 is alumina based ceramic foam filters, which can be used up to a limit of 1100℃ and most suitable for the filtration of molten aluminum and its alloys, and part of molten copper and its alloy. G400 is silicon carbide based filter, which can withstand temperatures up to 1540℃ and be used in the filtration of casting iron, copper and its alloys. G500 is zirconia- toughed- alumina ceramic foam filter that can withstand temperatures up to 1650oC and be used in the filtration of carbon steel and its alloys. G600 is partial stabilized zirconia filter which can withstanding temperatures up to 1750oC and is suitable for filtration of steel, stainless steel and super alloys. Besides, Ceramic Foam Filter can be applied for the metallurgy, smoke treatment in high temperature, catalyzer carrier, special packing, special art lamps and lanterns and filtration for aquatic animals.

Below sizes are available:

Length/Width/Diameter: 10-600mm, thickness: 10-50mm, PPI:8-60ppi.