Applied Catalysts manufactures a wide variety of ABATE VOC metal monolith supported catalysts. The metallic catalyst substrates are made of a thin, specialty alloy metal foil called FeCrAlloy. The foil is assembled, flat and corrugated alternating side by side, to form a honeycomb structure. Similar to ceramic monoliths, the assembled foils form cells or parallel channels that allow exhaust gases to run axially through the catalyst. Monoliths are sometimes called flow-through substrates. Exhaust gases flowing through the cells contact the catalyst surface which has been coated onto the cell walls.