Defoaming agent - defoamer for water treatment


Sewage treatment defoamer manufacturers - antifoam sewage factory


GREIMIN AW-0 is a relatively universally applicable defoamer mainly for defoaming of waste waters.

Form of delivery: liquid, possibly with solid parts
Appearance: yellow - brown, clear - turbid
Density (20 °C): ca. 0,9 g/cm³ DIN 51757
Viscosity (40 °C): 30 - 100 mPa•s DIN 51562, 53019
pH-value (10%ig): 4 - 6 DIN 53996


Chemical composition

Combination of fat derivatives and higher alcohols


Fields of application

Due to its wide working range on the pH-scale GREIMIN AW-0 is suitable for defoaming of the most different waste waters and circulating process waters.

GREIMIN AW-0 is able to decrease foams that arise during processing of vegetable or animal substances or to prevent their development.

  • Defoaming of waste waters in biological and mechanical sewage plants The product is to a large extent independent of the kind of the waste waters to defoam and does not show with normal dosage any negative influence on the biological life in the sewage plant.
  • Defoaming of waste waters in sugar processing in the external area
  • Defoaming in paper processing (mass, size press, waste water)



  • Highly effective antifoaming agent with good long-term effect
  • Biodegradable


Storage behaviour

The product can form a turbidity or sediment at longer storage, in particular with lower temperatures. This however does influence neither the effectiveness nor the dosing-ability. GREIMIN AW-0 is not frost-sensitive. The product can be brought into the original state at any time by stirring, pumping or slight warming.

GREIMIN AW-0 is storable in closed delivered packagings under normal temperature conditions (from +5°C to +30°C) at least a year.



GREIMIN AW-0 is only little emulsifiable and should be applied in the delivered form therefore.

Usually the product is used in a concentration of 0.01 to 0.05%. Suitability and dosage are to be determined through own practice tests on site in each case.

In order to reach a good distribution and small proportioning-amounts, it is recommended to add GREIMIN AW-0 at a place where the liquid is turbulent.

Please do not add the assessed amount of the defoamer at the same time. Fundamentally wait a certain time after addition of a small quantity until a good distribution with the watery liquid occurred. Judge the achieved effect only then and add a further amount if necessary.


All information of this publication is based on our present knowledge and experience. It does not free the user of our products from own examinations and experiments. A legally obligatory assertion of specific qualities or the suitability for a concrete operation purpose can not be derived from our information. Possible industrial property rights as well as existing laws and definitions are to be considered by the receiver of our products in own responsibility.