Organic Scale and Corrosion Inhibitor


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WTP H207B is an all organic scale and corrosion inhibitor. A blend of phosphonate, and polymers incorporating dispersants and yellow metal corrosion inhibitors. It is designed for the prevention of hardness deposition in recirculating or once through cooling systems using moderate to high hardness make-up water.

WTP H207B is halogen stable and can be used with oxidising biocide programmes. The product retards metal oxide formation, and passivates precipitation zones by sequestration and dispersion. A specific Co-polymer conditions phosphate salts that have been introduced to protect the municipal water supply. A bromide salt is formulated to enhance hypo chlorite dosing.

Low effective dosage makes WTP H207B economical for large water users.


Physical State Colourless liquid
pH 13
Specific Gravity (SG) 1.15 @ 15°C


A simple phosphonate drop test can be utilized to determine system reserves.
Standard Phosphonate test x 10 = Inhibitor reserve as product.

A phosphonate drop test kit is available to determine reserves in the system (WTP TK107).


Dependant on level of hardness contamination. However, an average dosage would expect to maintain 100 to 150 ppm of WTP H207B within system for hardness levels up to 800 ppm.


WTPH207B 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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