Produced with high purity and fine aluminum oxide powder, the Alumina Ceramic Foam Filters are featured with high open porosity, uniform pore structure and high surface strength. Mainly used for filtration of aluminum and aluminum alloys in foundries and cast houses.The filters can effectively remove non-metallic inclusions, oxide slags, reduce trapped gas and then the filtered metal is significantly cleaner, solve the internal defects of aluminum and aluminum alloy.

Physical Properties

Working Temperature: ≤1100℃

Color: White

PPI: From PPI 4 up to PPI 60 (PPI = pores per inch)

Porosity(%): 80‐90

Compressive Strength(MPa): ≥0.8 (Room temperature)

Bulk Density(g/cm3) :0.35‐0.50

Thermal shock resistance: ≥6 times/1100℃‐Room temperature


Alumina ceramic foam filters are available in following common sizes:

7x7x2″, 9x9x2″, 12x12x2″, 15x15x2″, 17x17x2″, 20x20x2″, 23x23x2″

Other sizes can be customized upon request.


TC-CFF-101 Low Phosphate Alumina Ceramic Foam Filters (phosphate as binder )

TC-CFF-102 Phosphate Free Alumina Ceramic Foam Filters (water-based binder)

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