Hengst Cool Purple is an ethylene glycol based engine coolant concentrate, which uses Organic Acid Inhibitor Technology (OAT) and is free from nitrites, amines, phosphates, borates and silicates. Field trials have shown, when used at the correct concentration, coolants based on OAT continues to provide effective corrosion protection for up to 250.000 km in passenger cars and up to 500.000 km in commercial vehicles. Recommended changing intervals of this coolant concentrate as per above mileage or after 5 years, whatever is sooner.
Hengst Cool Purple is for cooling systems of modern fleets. The concentrate is to bring in the right concentration before using. Our recommendation for the concentration is 30-50 % according the mixing table as follows. Technical water is preferred, otherwise you have to use drinking water with the following parameter: max. 20°dH, max. 20ppm chloride und max. 50ppm nitrite.
Long maintenance interval. Prevents before corrosion and do not affect rubber coatings, Excellent hard water stability, Very low inhibitor depletion rates.