DEFOAMER
DEFOAMER is a product range free from silicone oils
The DEFOAMER product range consist of a series of highly efficient defoamers for application in aqueous products such as cleaners, fountain solutions, release agents, emulsions, and metal working fluids. The DEFOAMER product range is free from silicone oils and does not lead to surface treatment problems in coating processes.
The DEFOAMER product range is free from VOCs.
The selection of a defoamer for a specific application depends on the type of product formulation it should fit into and on other requirements for the process. Many parameters must be considered when a defoamer is selected for a particular application:
- The pH value of the system
- The HLB value of nonionic surfactants present
- The application temperature
- The need for long-term effect
The DEFOAMER product range consist of a wide range of different chemistries to cover a broad range of requirements. We can give some general recommendations for defoamer selection according to below table.
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Product
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Product Type |
Applications |
Properties |
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DEFOAMER 45-N |
Polymer Dispersion |
Non-polar to medium polar aqueous fluids, semi-synthetic metal working fluids, cleaners, release agents |
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Medium polar to polar aqueous fluids, synthetic metal working fluids, grinding fluids, medium alkaline and neutral cleaners, electronic cleaners, metal degreasers |
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DEFOAMER 700 |
Polar aqueous fluids, synthetic metal working fluids, grinding fluids, medium alkaline and neutral cleaners, electronic cleaners, fountain solutions, ink cleaners |
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DEFOAMER 1000 |
Highly concentrated defoamer for incorporation into non-polar to polar fluid concentrates or for tank side addition at low dosage for example in vacuum evaporators for industrial waste water treatment |
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DEFOAMER VEG 90 |
Esters and modified natural glycerides |
Cleaners, polishes, emulsions, fermentation, eco-label, all areas where customers are looking for bio-based feed stock |
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DEFOAMER M 60 |
Mineral oil/stearate |
Cleaners, polishes, emulsions, high & low pH fluids, wastewater treatment, metal processing and degreasing, applications for non-Si defoamers |
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DEFOAMER PE 95 |
Polyether |
Cleaners, aqueous fluids, high & low pH fluids, CIP cleaners and scale removers, cooling systems, applications for non-Si defoamers |
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FAQ about defoamer
How can I apply the DEFOAMER products?
The DEFOAMER products can be applied in the fluid concentrate or as tank-side additive to diluted systems. The DEFOAMER products are free from silicone oils and do not cause problems in subsequent surface finishing such as painting. The products exhibit excellent long-term defoaming properties, they are much easier to incorporate into fluid concentrates than silicone oil emulsions, and the tendency to separation during storage is equally much lower than for the silicone oil emulsions.
What is the difference between the various grades?
DEFOAMER 1000 is a very concentrated, high-performance defoamer; it is water-free and contains no biocides. DEFOAMER 45-N, 100-FI and 700 are water-containing defoamers with varying polarity. The 45-N grade is primarily applied in emulsion-based products, the 100 FI is an all-round product applicable in most systems, whereas the 700 grade is mostly applied in synthetic fluids. DEFOAMER 700 is a defoamer with additional de-aeration properties.
Are the DEFOAMER products stable at high and low pH values?
When DEFOAMER products are incorporated into a fluid concentrate; the pH value of said concentrate should be kept with the range of 6-11 to secure good, long-time stability. Use of DEFOAMERs as tank-side additive to diluted fluids is a very common application, and you can apply DEFOAMERs outside the 6-11 range. You will need to test the borderline in your system by practical testing.