FLEXSIL® refractory cloth filters are designed to extract dross, slag, refractory particles, and non-metallic inclusions from molten metals. FLEXSIL filters were developed as a low cost, high efficiency alternative to cellular ceramic and reticulated ceramic foam filtration systems. Made from specially treated silica fibers, FLEXSIL filters are capable of withstanding pouring temperatures ranging up to 3000°F (1620°C).

FLEXSIL filters are ideal for inmold filtration of gray, malleable, white, compacted graphite, and ductile cast irons, as well as non-ferrous aluminum and copper-based metal alloys. FLEXSIL filters are available in a choice of mesh sizes, and can be cut or formed to virtually any desired size or shape. FLEXSIL cloth is also available in 25- or 50-yard rolls.