Aqueous Logic Non Corrosive Super Cleaner is a general cleaner that has been formulated to remove flux residues, greases, oily contaminants, sludge and debris, but not to dissolve hard deposits that are preventing leaks. It is a non-acid formulation and can be used in all types of central heating systems including those containing aluminium. It is ideal for cleaning systems prior to commissioning and for restoring old systems that may have leaks that hard rust has filled in.