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Star International
Product code: 00950070

Star Engine Cooling Water Treatment

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Star Engine Cooling Water Treatment combines film-forming corrosion inhibitors with scale suppressants in liquid form, for ease and is soluble in water in all proportions. Approved for engine loop cooling.

  • Protects all common metals in cooling systems from corrosive attack
  • Protects against cavitation erosion
  • Minimises sludge and scale deposits
  • Compatible with anti-freeze solutions
  • Safe and simple to apply and handle
  • Does not contain chromates


  • Appearance: Liquid
  • Density @ 20°C: 1.1-1.2
  • pH (concentrated): <14
  • Shelf life


  • 25 ltrs (00950070)


Directions for use

Star Engine Cooling Water Treatment has been designed for use in all common types of engine cooling water systems and will protect ferrous metals, copper and copper alloys and all other metals including aluminium components. It will not affect rubber gaskets or other non-metallic components within the cooling system.

Engine cooling systems should be drained, flushed and if necessary, chemically cleaned, to remove old rust and scale deposits before treatment can begin. Star Engine Cooling Water Treatment is easy to apply as received and is fully compatible with water in ethylene glycol solutions. It contains an anti-scalant which helps to keep engine systems clean and free from corrosion and scale formation, maintains design heat transfer efficiencies, and extends the life of the engine.

Cases of unusual coolant loss should be checked and remedial action taken and should be introduced during circulation of the cooling water.


The treatment is best added by means of a feeder installed on a by-pass to the circulating system or in smaller systems, it can be added directly to the header tank.

To target 1000ppm pf sodium nitrate, use 2.3 litres of product per m3 of water volume.

Overdosing is not harmful to the system. Control by a simple test for nitrite and pH.

Materials compatibility Stainless Steel, PVC, Polypropylene, Polyethylene, Natural Rubber, Synthetic Rubber, Viton.


Dispose of chemicals in accordance with local environmental legislation.


Normal precautions should be taken for handling chemicals. Protective clothing, eye protection
and gloves should be worn. For further details please refer to the safety data sheet.

Please read the Material Safety Data Sheet before using this product for detailed information on safety and health.

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