Dfoam AX1
Antifoam for Aqueous Systems
Antifoams are used in many aqueous-based formulations where a build-up of foam may be a problem. Many systems already contain surfactants or dispersing agents which tend to foam to a certain degree. In mechanical or agitated systems foaming can be an issue, so the incorporation of an antifoam during processing will help to significantly reduce the problem.
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Dfoam AX1 is designed specifically for paint formulations.
Key Features
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Powerful Antifoam Properties
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Silicone Free
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APE Free
Typical Application Examples
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Water Treatment
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Paper Treatment
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Paints
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Adhesives
Specification
Appearance at 25°C
Hazy pale straw liquid free from foreign matter
Water content %
1 max
Saponification value mg.KOH/g
15 - 19
pH (5% aqueous)
4.0 - 5.0
Typical Properties
Composition
Mineral oil based antifoam
pH (1% aqueous)
4.0 - 5.0
Pour point °C
<0
Active content %
100
Viscosity at 25°C (cP)
200
Freeze thaw stable
Yes
Odour
Mineral oil
Density at 25°C g/cm3
0.88
Applications
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Dfoam AX1 is a silicone-free antifoam that effectively prevents air entrainment, froth and foam. It coalesces minute air bubbles in the liquid, allowing them to rise easily to the surface, and promotes rapid bubble film rupture on the surface of the liquid. Foaming is not only suppressed during manufacture, but it also remains suppressed during stirring and application by the consumer. Foam control is easily and effectively achieved with small percentages of Dfoam AX1. This ensures an economical method of foam control.
Dfoam AX1 is specifically compatible with a variety of polymer latices including styrene butyl acrylate, acrylic, PVC, styrene-butadiene and vinyl acetate, for use in paints and adhesives.
Typical Addition Levels
Paints %
0.2 - 0.5
Adhesives %
0.5 - 1
Pigment dispersions %
0.1 - 0.5