Industrial Biocide


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WTP C44 is a fast-acting, non-oxidising biocide formulation containing DBNPA, with a broad spectrum of activity. WTP C44 has been developed to control planktonic and sessile micro-organisms.

WTP C44 is compatible with system components and can be used with other water treatment chemicals as part of a routine treatment and maintenance programme.


  • Fast acting.
  • Broad spectrum of activity.
  • Rapid degradation to inactive and harmless by-products. 

Product Data

Physical State Colourless to pale amber liquid
pH 2.1
Specific Gravity (SG) @ 20oC 1.28

Dosing and Testing

  • WTP C44 is dosed at 50 – 100 mg/L (for a clean system) and should be circulated around the system for 4 hours.
  • Half-life and retention times must be calculated.
  • A drop test kit is available (WTP TK142) to determine correct levels in the system.

Legionella Efficacy

20% DBNPA was effective in preventing recovery of the target organism from the test water.

In an uncompromised environment used in laboratory procedures (0.85 percent saline), 20% DBNPA gave complete inhibition of L. pneumophila at 20 ppm and 2-hour exposure.


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, eyes and clothing.
  • In case of accidental contact, flush area with water, and seek medical attention.
  • If swallowed or inhaled, seek medical attention immediately.



Field Representatives will work closely with customer personnel to assure the effective application of the water treatment programme. Qualified personnel can provide regular service calls.

More Information

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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.

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