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SAG 638 antifoam emulsion is an
excellent candidate to consider for
general purpose foam control in
SAG 638 antifoam emulsion excels
in applications requiring excellent
knock down and durability.
Remarkably small concentrations
can sharply reduce the foam
created, which can cut down the
processing time and potentially
permit maximum capacity
Key Features and Typical Benefits
outstanding and quick foam knockdown
excellent durability in both non-ionicand anionic surfactant systems
long lasting antifoam performance inacidic and alkaline conditions
good emulsion stability
readily dispersible in the foaming media
foam control in textile pre-treatment processes and textile print pastes
textile sizing and scouring agents
acrylic latexes and thickeners used for textiles and nonwovens
other chemicals and chemical
processes requiring foam control
Figure 1: The picture below shows the stability of a 10% aqueous dilution of SAG 638 antifoam emulsion as opposed a comparative antifoam Product A, available in the market.
Figure 2: The graph below shows the exceptional foam knockdown ability of SAG 638 antifoam emulsion as compared to competitive antifoam (Product A).
General Instructions for Use
SAG 638 antifoam emulsion can provide excellent performance as a defoamer as well as an antifoam agent. Therefore, it is recommended that SAG 638 antifoam emulsion be added to the aqueous system before the foaming process
Generally, only a very low concentration of 50 - 100 ppm or 0.05 - 0.1 g/L of SAG 638 antifoam emulsion is necessary to suppress foam. However, the optimum level is really dependent upon many factors such as temperature, bath composition,
viscosity or agitation of the foaming system.
Use SAG 638 antifoam emulsion as received or dilute first with water.
Mix the antifoam well before use.
Dilution: Mix 3 to 10 parts of water to 1 part antifoam emulsion and stir gently until a uniform mixture is obtained. For a long-
term bulk stability of the dilution, thickener and biocides need to be added.Dilution of Sag 638 antifoam emulsion to 15% solids
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