Product Short Description: Heavy Duty Cleaner (Emulsifier) is a low-foaming solvent emulsifier cleaner used for cleaning marine equipment that is seriously contaminated with fuel or lubricating oils. Product Description: Heavy Duty Oil Cleaner or Heavy Duty Cleaner Emulsifier is a low-foaming solvent emulsifier cleaner used for cleaning marine equipments and Boiler, Cooling system that is seriously contaminated with fuel or lubricating oils.