Advantages and Disadvantages of Silicone Defoamers

Industry production and defoaming processes are closely connected. Preventing or controlling is crucial when working in different industries involving aqueous solutions or adhesives. Foaming could influence the appearance and effectiveness of the product, coating weight, increase manufacturer times and expenses, diminish product quality, the flow speed of liquid, and many more other factors.

Advance Chemicals ACCO 0941 silicone-based defoamer is designed to knock down the foam and effectively control and minimize production applications, which could save processing time and money. Our Silicone Based Defoamers are suitable for application in food and beverage, chemical, plastics, pulp and paper, oil and gas, metalworking, construction, and others.

Defoaming agents can effectively remove and suppress the formation of foam. The Silicone-based defoamers are versatile, practical, and economical solutions for controlling foam.

Silicone-based defoamers are ingrained with silicon key ingredients that might be more effective than oil or water-based emulsion. Silicone antifoams are used in processes that involve liquid-gas contact and agitations with the end goal of optimizing manufacturing throughput and productivity.


Before you choose an Antifoaming Chemical, it is imperative to peek into its pros and cons.

Advantages of Silicone Based Defoamers


  • Wide applications

Due to the chemical structure of silicone oil, it is insoluble in various applications and can be used in myriad industrial uses. It can be blended in oil systems as well as defoaming water systems.


  • Lower surface tension

Lower surface tension translates to higher defoaming efficiency. The surface capacity of silicone oil is 20-21 dynes/cm, lower than that of water 72 dynes/cm.


  • Thermal stability

An ordinary dimethicone can resist about 150 degrees Celsius for a long time and 300 degree Celsius for a short time, and the Si-O bond does not deteriorate. The silicone defoamer can be used over a wide range of temperatures.


  • Good chemical stability

The chemical stability is high, and it’s gruelling to react with other substances. Silicone defoamers can be blended with acids, bases, and salts as their formulation is reasonable.


  • Physiologically inert

The properties of silicone oil are non-toxic to humans and animals when added with a semi-lethal dose of more than 349mg/kg of body weight. Therefore, silicone defoamers can be used in food, medical, pharma, cosmetic, and other industries.


  • Powerful defoaming

Silicone defoaming breaks the foam, significantly inhibits the foam, and avoids the formation. It is used in small amounts, one part per million of the weight of the foaming medium. It’s not only low cost but also does not pollute defoamed material.


Disadvantages of Silicone Based Defoamers


  • Poor durability

Silicone-based antifoam is relatively poor durability.


  • Oil-soluble

Silicone is oil soluble, and it reduces the defoaming effects in oil systems.


  • Temperature resistance

It is not ideal for long-term high-temperature resistance and strong alkali resistance.


High-grade silicone defoamer

Advance Chemicals is a defoamer chemical supplier; with unrivaled experience and unparalleled experience, our company has products suitable for all walks of life. We offer food-grade, tech-grade, and agriculture antifoams with various viscosities that are ready to use and concentrated ones.


Advance is synonymous with good service and punctual delivery. With a solid customer base, we are the leader in the market for water treatment chemicals as well.

We are renowned as one of the most reliable Pulp & Paper chemical suppliers in India, and offer a range of specialty chemicals.



Difficulties for persistent control of foam in pulp operations


Pulp and paper makers need to reduce excessive foam created in the pulping process, when extracting cellulose fibers from wood, and during the washing process when making products such as Kraft brown-stock. Also due to various contaminants, foam is a permanent trouble during recycling operations. To process, manufacturers use foam control formulations, ‘antifoams’ or ‘defoamers’. To be competitive, pulp manufacturers are constantly seeking to lower costs and to use less water, energy and chemicals. Also to minimize their impact on the environment.

In all these respects, silicone-based antifoam formulations outperform mineral-based products, being easier to use – and at lower dosage – to produce better quality pulp. Silicones provide both greater and more rapid knockdown, and more persistent control of foam, and are stable across the extreme pH and temperature conditions needed to make pulp.


A long experience in foam control agents

Advance Chemicals has been helping major clients in Asia for more than 15 years, by continuing to develop our full-range of cutting-edge ACCO range foam control agents, formulations and processing aids.

Our experts work closely with the Pulp and Paper Industry to provide them upstream support by advising on use of the right products in the most efficient way for cost-effective and environmentally safe processes.


ACCO​ foam control agents are a comprehensive and highly effective portfolio of products available in different forms, such as compounds and emulsions.


A persistent foam control agent

ACCO 0941 is an innovative foam control agent, based on a highly-active silicone compound. Advance Chemicals has specifically designed ACCO 0941 to be the foam control agent of choice for several industries. ACCO 0941 meets all essential criteria in terms of productivity, reliability and quality, to reduce total cost of operations. Benefits include:

  • Excellent foam knock-down
  • Persistent foam control
  • Lower dosage compared to mineral oil-based antifoams
  • Enhanced efficiency of pulp washing
  • Improved drainage of pulp
  • Ease of use
  • Reduced consumption of chemical additives

In case of any technical query related to foaming or related to Pulp & Paper Specialty Chemicals kindly drop us an email of or submit the form through