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Excellent protection against corrosion, erosion, and cavitation, for aluminium water pumps. Heat transfer remains optimised: wholly organic additives allow avoiding any formation of deposits and left surfaces clean. The additives in COOLELF AUTO SUPRA -26° give to the coolant: Chemical neutrality (pH 7-8.5). A reserve of alkalinity to neutralise the acids resulting from the combustion gases. Resistance to foaming (mainly instability of the foam that might form). Compatibility with hard water (maximum 40°F). No silicates, phosphates, chromates, nitrites or boron contains. COOLELF AUTO SUPRA -26° is inert to elastomeric seals and paints.
