• Low toxicity
  • Multi-metal inhibitors
  • Contains anti-scaling agents
  • Reduces system noise
  • Hard water tolerant
  • Compatible with alcohol and glycol anti-freezes
  • Exceeds the requirements of BS6580:2010
  • Protects copper, solder, brass, steel, cast iron & aluminium
    (Aluminium can be at risk of corrosion in system fluids pH 9 and above)
  • Compatible with standard gaskets & seals


  • Operational pHEffective between 7 - 10 pH

  • Operational Temperature-40°C to 80°C

Physical Properties

  • Appearance:Clear straw coloured liquid

  • Consistency:Low viscosity

  • Density:1.05 - 1.15

  • Odour:Slight characteristic smell

  • Foam:Non-foaming

  • pH:12 - 13

  • Available in: 1, 5, 20 litre containers ( bulk containers & tankers available on request )


Dosing depends on system size, construction materials, and fluid condition. For this reason, we recommend a system fluid sample is taken and analysed prior to any remedial work. Hydratech offers comprehensive testing and analysis services, for more information visit - Testing & Analysis

Recommended standard dosing
Dose Sureflow COR2 at 12.5 litres per 2000 litres of system volume, or 0.625% v/v of the total system volume.

We suggest sampling and analysing system fluids biannually to catch any issues early.