Purachem HSC3 Physical Properties


Pale Blue Liquid


Low Viscosity


1.01 g/cm³


Characteristic to QAC


Medium foam


7 (1% solution)

Active Biocide:

<4% active QAC

Available in:

5, 10, 15, 20, 25, 205 & 1000 litre containers and bulk tankers.


For a quote or assistance

Tel: (021) 385 0908

Highly effective combined Disinfectant and Detergent. It is pH Neutral and contains a Broad Spectrum Biocide and Non-Ionic Surfactants. It is ideal for neutralisation of light to medium biological contamination, slime and silt.

Purachem HSC3 is a blend of Quaternary Ammonium Compound (QAC Biocide), Non-Ionic Surfactant and water to suit the strength required.


Purachem HSC3 can be used as a pre-commission pipework cleanser. It is ideal for use when implementing a chemical cleaning policy, such as BSRIA BG 29/2012*.

Purachem HSC3 is suitable for use in a wide range of cooling and heating systems and to help restore contaminated systems to their original condition. For example after;

Purachem HSC3 is also suitable for cleaning out food processing vessels in dairies etc.


Purachem HSC3 can be supplied in concentrate and in dilute form. The standard concentration requires 25 litres per 1000 litres of system volume. At this strength lightly contaminated systems can be cleansed in a single operation.

The following procedure, applied in conjunction with the appropriate engineering methods,* will maximise the capabilities of Purachem HSC3

  1. Drain existing system contents. Be sure to empty all ‘dead-legs’ and open any vents to ensure total drainage.
  2. Refill with fresh water and the appropriate volume of Purachem HSC3 (see above).
  3. Vent the system of any trapped air.
  4. Recirculate for a minimum of two hours and a maximum of 24 hours. Regularly check all filters and clean as necessary.
  5. Repeat 1.
  6. Refill with fresh water.
  7. Repeat 3.
  8. Recirculate for one hour and then take a sample. Test sample to confirm all biological contaminants have been neutralised.
  9. Repeat 1.
  10. Refill with required strength of inhibited heat transfer fluid and good quality fresh water.
  11. Repeat 3.
  12. Re-commission the system and take a second sample for detailed lab analysis. Please refer to the SureFlow Fluid Maintenance Program for more information on sample testing and reports.

* For more detailed information on the pre-commission and re-commission cleaning of pipe-work systems, please refer to BSRIA BG 29/2012 guide via


Health & Safety: Please refer to the associated Safety Data Sheet - Available via Login or upon request.

Shelf Life: Minimum of 2 years

Availability: Purachem HSC2is available from stock in 5, 10, 15, 20, 25, 205 & 1000 litre containers.

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