Polyalkylene Glycol


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DF515 is a polyalkylene glycol based foam control agent suitable for high temperature aqueous systems.

WTP DF 515 is an effective antifoam and defoamer at temperatures in
excess of 55 0 C.

WTP DF 515 offers good foam suppression at low doses and is therefore cost effective in use.

Typical areas of use where DF 515 may be successful include:

  • Desalination
  • Boiler Water
  • Paper and Paperboard manufacture
  • Bottle washing
  • The Benfield washing process
  • Sugar beet process


pH 6.0
Specific gravity (sg) 1.025
Flash point >216 0 C
Pour point -36 0 C
Cloud point 51 0 C


WTP DF515 can be dosed manually as and when foam occurs or automatically using a standard dosing pump and tank set.

Dosage will vary according to the application; typically shot doses should be made of 5 to 50 ppm, and continuous dosing of 0.2ppm to 10ppm using a suitably sized pump.


FDA ,21CFR ( Code of Federal Regulations) 173.310, 173,340, 175.105, 176.200, 176.210, 177.1200, 178.35120, 178.3570, 178.3190


Please refer to material safety data sheet for detailed handling/storage instructions.

  • Avoid direct contact with skin and eyes to prevent mild irritation.
  • In case of accidental contact, flush area with water, and get medical attention.
  • Product should not be ingested


DF515 Treatments are shipped in 25 litre and 205 litre non-returnable drums.


Field Representatives can work closely with customer personnel to assure the effective application of the water treatment programme. Regular service calls will 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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