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Star International
Product code: 00950006

Star Alkalinity Control

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Star Alkalinity Control is a formulated liquid alkaline concentrate developed for corrosion and deposit control in boilers.

It provides the basic alkalinity on which successful water treatment depends. The formulation reduces the need for maintenance, allows efficiency to be maintained and can extend the operational lifespan of the boiler and its components.


  • Maintains alkalinity within optimum parameters for hardness control to function.
  • Assists in precipitation and the blowdown of magnesium salts.
  • Assists in keeping silica in suspension.
  • Neutralises acid conditions.

Without the correct precipitation and subsequent blowdown of hard water salts, scale deposits form, resulting in the restriction of water flow, ineffective heat transfer and local corrosion. The end effect would be an inefficient boiler and ultimately component failure. Treatment stops this occurring. Corrosion due to acid conditions must be avoided.


  • 25 ltrs (00950006)

Directions for use

A level of treatment is maintained by testing for P alkalinity, determined by the pressure and type of boiler. The normal method of raising the alkalinity level is by adding the required quantity of Star Alkalinity Control after testing for P alkalinity. 0.10 litre will raise P alkalinity by 100ppm per 1000 litre capacity.

For optimum results, dose Star Alkalinity Control direct to the boiler via the bypass pot feeder installed in the boiler water feed line.

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

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