Dodecylguanadine and Bronopol


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WTP C65 is a formulated blend of highly effective non-oxidising biocides based upon mechanical biological treatment and a selected guanidine. WTP C65 is effective over a broad spectrum of water-borne bacteria including pseudomonas spp. It is highly effective as a biocide wash in pre-commission cleaning and as a final maintenance treatment in new pipe work.


  • Highly effective
  • Non-oxidising
  • Outstanding performance against pseudomonas


Physical State Pale yellow/green liquid
pH 3 – 5
Specific Gravity (SG) 1.00


  • WTP C65 dosage will vary depending on the system cleanliness
  • Dirty systems or badly contaminated systems will require more frequent and/or higher dose rates
  • Typically, for maintenance, a dose rate of 250 ppm is required
  • For biocide washes and for systems known to be contaminated with pseudomonas a higher level of 500 ppm may be needed
  • Overdosing may cause foaming


Use biocides safely. Always read the label and product information before use. Please refer to material safety data sheet for detailed handling/storage instructions. Avoid direct contact with skin, eyes and respiratory system.


WTP C65 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.

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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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