Multifunctional Closed Circuit Water Treatment


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WTPM26 is specially developed, for the prevention of corrosion in closed circuit heating and cooling water systems.  

WTPM26 is based upon a blend of molybdate and advanced all-organic corrosion inhibitors, the product is pH buffered with an organic buffer to a pH of 7.5 to 8.0.


  • Effective, all-round corrosion inhibitor
  • Scale preventative and anti-fouling properties
  • Non-aggressive to aluminium or zinc
  • Complete, single-package treatment
  • Good environmental profile


Dosage and Testing

  • WTPM26 suggested dosage depends on the system material as such;-Aluminium systems; 2.5% of system volume to give a +850 ppm reserve of molybdate (as MoO4)
  • Systems containing aluminium should not be base-exchange softened and high hardness water should be avoided
  • Mild steel systems; 1% of system volume to give a +300 ppm reserve of molybdate (as MoO4)
  • Application should be made via a recommended point in the system
  • Once WTPM26 has been dosed to the system and full mixing of the system has occurred the molybdate reserve as MoO4 and the pH should be accurately measured and recorded.
  • Regular testing is recommended to ensure optimum conditions are maintained, this is particularly important if aluminium components are present.
  • A Molybdate drop test kit is available for checking reserves in the system (WTPTK105).


Please refer to material safety data sheet for detailed handling/storage instructions.  Avoid prolonged contact. Not to be taken internally.  Wash thoroughly with water, and for eyes seek medical attention.


WTPM26 treatments are shipped in 25 litre polythene drums.


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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