MC-2 METAL CLEANERBranson MC-2 Metal Cleaner Concentrate is a biodegradable, phosphate and caustic-free alkaline cleaner formulated for general purpose and normal maintenance cleaning applications. MC-2 Concen-trate solution is an emulsifying cleaner, holding soils in solution and preventing them from re-depositing on cleaned parts.MC-2 Concentrate solution removes oils, greases and a wide variety of solids from ferrous metals, stainless steel, titanium alloys, copper and copper alloys. It is not recommended for aluminum or aluminum alloys.