DE FOAM

Reduces Surface Tension
For Industrial Dishwashers

DESCRIPTION

DE FOAM is a highly stable, long-lasting, "reacted" silicone defoamer which virtually eliminates problems associated with improperly emulsified silicone oils found in most silicone defoamers. Readily dispersible, DE FOAM is effective under a broad range of conditions including high-temperature and pressure processes.

TYPICAL PROPERTIES:

Appearance : Milky white liquid.
Chemical nature : Reacted poly-siloxane dispersion.
Ionic charge : Nonionic
Dispersibility : Easily dispersed in water.
Stability : Excellent to dilute acids and alkalis at dye bath concentrations.

ADVANTAGES:

  •  Eliminates foam efficiently throughout dyeing cycle - defoams even during depressurizing of jets.
  •  Superior compatibility with dyes and other chemicals stable to most electrolytes.
  •  Efficient and stable at high temperatures; resistant to emulsification by processing surfactants.
  •  Effective in all types of dyeing equipment; leaves no scum ring, avoids dye spots.

APPLICATION:

Selecting a defoamer involves far more than evaluating its efficiency to kill foam. The product must be finely balanced to control foam, yet have the stability necessary to prevent any negative effects caused by the active defoaming ingredients.
DE FOAM is a "stabilized" silicone defoamer manufactured by an exclusively developed HYDRO-SILICONE reaction process. By altering the defoaming molecule, we have greatly
increased its foam killing efficiency and made it far more resistant to emulsion breakdown. The water dispersibility of DE FOAM is also superior to that of other silicones, so it rinses freely from the goods.
Unlike other silicone defoamers DE FOAM is stable in baths containing high concentrations of electrolytes which can come from one or more of the following sources:
1. pH modifiers (ammonium sulphate, MSP, TSP, other salts).
2. Water (hardness ions and trace metals).
3. Dyestuffs (the dye molecule, salt, diluents, and/or dispersants).
4. Chemicals (cationic or anionic materials).
5. Salts (common salt, Glauber salt).
While most defoamers (silicone or non-silicone) show poor emulsion stability in electrolytes, DE FOAM exhibits no breakdown in as much as 50 g/l electrolyte solutions.

USE LEVELS:

Because DE FOAM is a stabilized, reacted silicone product, very low silicone levels are required for effective defoaming.
For most applications, the use of 0.25 - 0.5% O.W.G. (on weight of goods) DE FOAM provides effective foam control. Greater amounts are required only where surfactant levels in the bath are unusually high.

DILUTION PROCEDURE:

Pre-dilute DE FOAM with 10 - 20 times its weight of cold water (16° - 32°C / 60° - 90°F), using hand mixing or light, low speed mechanical agitation (as with any defoamer emulsion, the use of lengthy or high speed mechanical mixing during the dilution process should be avoided, as it can tend to over-shear and break down the emulsion). Add DE FOAM to the dyeing machine before the addition of any other chemicals. DE FOAM should not be mixed with acid or any other chemicals before adding to the dye bath.
DE FOAM is normally added at the beginning of the dye cycle. However, when properly diluted as above, it can be added to the bath during the dye cycle if needed.

COLD WEATHER HANDLING:

KEEP FROM FREEZING. If exposed to temperatures below 4°C (40°F), freezing damage may result. If this occurs, consult BioSaniTERRA. before using.