Filtec Precision Ceramics Corporation (USA)
CF400 Silicon Carbide Ceramic Foam Filters for iron and
iron alloy casting
FILTEC CF400 Ceramic Foam Filter is a silicon carbide-based product, it is made
by unique technology at FILTECO’s iso-9001 certified plant. It is characterized by
high porosity and mechanochemical stability and excellent resistance to thermal
attack and corrosion from molten iron liquid, It can effectively remove inclusions,
reduce trapped gas from liquid metal and provide laminar flow when applied as filter
in gating system. They are machined to tight dimensional tolerance during
production, this combination of physical properties and precise tolerance make
them first choice for both grey and ductile iron casting.

FILTEC CF400 Ceramic Foam Filters are widely used for molten iron and its alloy’s
filtration in ferrous foundries, they are also applied in casting copper and casting
aluminium factories.
Porosity %
80 ~ 90
Compression Strength
Bulk Density
Thermal Resisitance
1300°C~R.T, 5 times