Sulphamic Acid Powder Descaler


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WTPSP is a sulphamic acid powder for the production of descaling solutions on site or at point of use. The product will descale cooling towers, plumbing fittings, calorifiers, tanks and sanitary ware in a simple operation.

Product Data

Appearance White/yellow crystalline powder


WTPSP solutions can be made using warm water in a suitable plastic container or plastic tank. Add 1 kg of SP to 5 litres of water to make a stock solution. Further dilution in the system to achieve 2 to 4% active SP will be suitable for most applications.

WTPSP can be used sparingly on decorative and Chromed finishes.

Chrome plating will eventually be removed with repeated use.

The quantity required will depend on the nature and extent of the scale. As a rule of thumb 1 kg of WTPSP will remove 1 kg of Scale. On completion of descaling, components should be thoroughly rinsed with fresh mains water before reinstatement of service.

WTP SP should not be mixed with other products such as hypochlorite based solutions.

Acid effluent should be neutralized before sending to foul sewer.


Acid Descaling Test Kit – WTPTK149 is available to monitor scale removal.


Please refer to material safety data sheet for detailed handling/storage instructions. WTPSP is based upon a mild acid, however full safety precautions should be observed. Avoid direct contact with skin and eyes and respiratory system. In case of accidental contact, flush area with water, and get medical attention. Product should not be ingested. Refer to Safety Data Sheet for full safety data information.


WTPSP treatments are shipped in 25kg non-returnable pails.


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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