Bronopol (BNPD)


Request price




WTP C48 is a formulated blend of highly effective, non-oxidising biocide based upon BNPD.


  • Biocidal effectiveness is over a broad-spectrum of water-borne bacteria including;
    • Pseudomonas spp.
    • Staphylococcus spp.
    • Legionella spp
    • Klebsiella pneumonia
    • Bacillus subtillis
  • Particularly effective against anaerobic sulphate-reducing bacteria


Physical State Colourless liquid
pH 4.0
Specific Gravity (SG) 1.045


  • WTP C48 effective dosage will vary depending upon system cleanliness.
  • Dirty or badly contaminated systems will require more frequent and/or higher dosage rates.
  • Typically a clean system will require a dose of 250 – 500 ppm of WTP C48.
  • For a retention time of four hours good kill rates of legionella species have been demonstrated.
  • Systems known to be contaminated with legionella will require twice weekly dosing at the higher level of 700 ppm for several weeks to provide effective control.


Use biocides safely. Always read the label and product information before use. Please refer to safety data sheet for detailed handling/storage instructions. Avoid direct contact with skin and eyes to prevent mild irritation. In case of accidental contact, flush area with water, and seek medical attention. Product should not be ingested.


WTP C48 treatments are shipped in 25 litre and 200 litre non-returnable drums.


Field representatives will work closely with customer personnel to assure the effective application of the water treatment programme. Regular service calls can be provided by qualified personnel.  

More Information

To enquire further about this product click here

The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The company shall not be held liable for any damage resulting from handling, contact, mis-use or mis-application of the above product. In all instances the user should satisfy themselves that this product is suitable for the anticipated application and should carry out suitable and sufficient risk/COSHH assessments and a method of use statement.

Copyright © 2010 - 2021 Water Treatment Products Ltd, All rights reserved.

Designed and built by Big Eye Deers