Cooling System Corrosion Inhibitor


Request price




WTPH390 is a blended formulation based upon silicate, polyphosphate and advanced Polymer technology. WTPH390 demonstrates excellent corrosion inhibition on softened and low hardness waters. With an excellent environmental profile this product can be used where other products may cause an effluent problem.

WTPH390 is suitable for use with oxidising biocide programmes and is particularly useful where hard water is base exchanged softened.


Physical State Yellow Liquid
pH 13
Specific Gravity (SG) 1.30 @ 16 °C



WTPH390 should be dosed continuously as a proportion of cooling tower make up water. A reserve of 55 ppm to 110 ppm of product will give the required protection for most systems.  A simple silicate test can be performed on site to control the product dose rate. PPM silicate x 10 = Product reserve. A Technical Representative will advise as to the correct dosage specific to the application.


Please refer to material safety data sheet for detailed handling/storage instructions. 
  • Avoid contact with eyes, skin and clothing.
  • In case of contact, immediately remove contaminated clothing and wash skin with soap and water.
  • For eyes, flush with plenty of water and seek medical attention.
  • Harmful if swallowed.


WTPH390 treatment can be shipped in 25 Litre and 205 Litre non-returnable containers.


Field Representatives can work closely with customer personnel to ensure the effective application of the water treatment programme. Regular service calls will be provided by qualified personnel.

More Information

To enquire further about this product click here

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.

Copyright © 2010 - 2021 Water Treatment Products Ltd, All rights reserved.

Designed and built by Big Eye Deers