THE WORLD OF SILICONE
DEFOAMERS

Safe and reliable, defoaming almost everywhere.
Silicone defoamers are particularly effective foam inhibitors and can also be used for subsequent defoaming in the following areas:
Applications
CHEMICAL INDUSTRY
- Adhesive production
- Paint production
- Lacquer production
- Polymerization of plastics
- Wool fats
FOOD INDUSTRY
- Esterification of vegetable oils
- Fermentation
- Yeast processing
- Food washing
- Brine for cheese production
ELBESIL ES 1230 N and ES 1210 N
ELBESIL ES 1230 N and ES 1210 N are non-ionic defoamer emulsions of a modified polydimethylsiloxane of medium molecular weight. They are suitable for use with direct and indirect food contact FDA CFR 21 and BfR XV. silicones etc..
Both fulfill the requirements of the Detergents Regulation (EU RL 648/2004) for use in detergents and cleaning agents.
ELBESIL ES 500
ELBESIL ES 500 is a silicone defoamer compound for the removal and control of foam in anhydrous systems. It provides maximum foam control in neutral, highly alkaline and acidic systems.
ELBESIL ES 500 is suitable for use with direct and indirect food contact FDA CFR 21 and BfR XV. silicones etc.. Among other things, it meets the requirements of the Detergents Regulation (EU Directive 648/2004) for use in detergents and cleaning agents.
Do you have a special application or would you like advice? Please feel free to contact us.
All products from L. Böwing GmbH, whether raw material or formulation, are also expressly available ready-made. Tell us what you want in terms of container and packaging and we will make it happen.
FAQS – DIE WICHTIGSTEN FRAGEN ZU SILIKONÖLEN
Why choose a specially developed, application-specific silicone defoamer?
Standard defoamers do not provide the required foam control in every process. Application-specific silicone defoamers are specifically developed to match the operating conditions and media of each application. By optimizing factors such as active ingredient content, silicone system, emulsification, dosing behavior, temperature resistance, and long-term performance, foam-related issues can be reduced sustainably while improving overall process efficiency.
Do you offer customized silicone defoamers for industrial applications?
Yes. We develop and manufacture application-specific silicone defoamers for a wide range of industrial applications.
Depending on the application, we can tailor properties such as:
- Defoaming performance
- Long-term foam control
- Active ingredient content
- Emulsion stability
- Temperature resistance
- pH resistance
- Dosing behavior
- Media compatibility
- Food-grade compliance or other industry-specific approvals
Can existing silicone defoamers be optimized or replaced?
Yes. We support companies with:
- Product optimization
- Reformulation
- Supplier replacement
- Improved defoaming performance
- Reduced product consumption
- Adaptation to regulatory requirements
- Cost optimization
Our goal is to improve both process reliability and cost efficiency.
What are the key properties of industrial silicone defoamers?
Silicone defoamers are among the most effective foam control systems and offer a range of advantages, including:
- Rapid foam knockdown
- Long-lasting foam suppression
- High efficiency at low dosage levels
- Excellent temperature resistance
- High chemical stability
- Effective performance in aqueous systems
- High process reliability
- Broad application range
Silicone-based defoamers are widely used because silicones have an exceptionally low surface tension, enabling them to efficiently destabilize and eliminate foam.
What active ingredient concentrations are available for silicone defoamers?
We offer silicone defoamers in a variety of concentrations and formulations to meet different application requirements.
Depending on the application, available options include:
- Silicone emulsion defoamers
- Silicone-based defoamer concentrates
- Silicone-containing compounds
- Customized specialty formulations
The optimal concentration depends on the process medium, dosing requirements, and operating conditions.
What temperature ranges are your silicone defoamers suitable for?
Silicone defoamers are characterized by excellent thermal stability and are widely used in processes involving elevated temperatures.
Depending on the formulation, they can provide reliable foam control even under demanding thermal conditions. The most suitable product is selected based on the specific requirements of the application.
Are your silicone defoamers chemically resistant?
Many silicone defoamers offer high resistance to:
- Acids
- Alkalis
- Salts
- Oxidation
- Moisture
- A wide range of process chemicals
The actual chemical resistance depends on the specific medium and the prevailing process conditions.
Which industries do you supply silicone defoamers for?
Our silicone defoamers are used across a wide range of industries, including:
- Water and wastewater treatment
- Pulp and paper industry
- Chemical industry
- Paints and coatings industry
- Construction chemicals
- Textile industry
- Food industry
- Fermentation and biotechnology
- Metal processing
- Plastics industry
Silicone defoamers are among the most widely used foam control systems in industrial processes.
What applications are silicone defoamers used for?
Silicone defoamers are used wherever unwanted foam formation interferes with industrial processes.
Typical applications include:
- Process water treatment
- Industrial cleaning systems
- Fermentation processes
- Paper manufacturing
- Paints and coatings
- Adhesives
- Inks and printing inks
- Textile finishing
- Wastewater treatment
Which silicone defoamers are suitable for water treatment applications?
In water and wastewater treatment, silicone defoamers are used to quickly and effectively reduce unwanted foam formation and provide long-lasting foam control.
Typical application areas include:
- Wastewater treatment plants
- Industrial wastewater systems
- Process water applications
- Cooling systems
- Recirculating water systems
In these applications, rapid defoaming, long-lasting performance, and compatibility with the process medium are particularly important.
Which silicone defoamers are used in the paints and coatings industry?
Specialized silicone defoamers are used in paints, inks, and coatings to reduce foam formation during manufacturing, filling, and application processes.
Typical benefits include:
- Improved surface quality
- Prevention of cratering and surface defects
- Reduced air entrapment
- Increased process reliability
- Improved processability
The selection of the appropriate defoamer depends on the specific binder system and formulation.
Which documentation do you provide?
Depending on the product, we provide:
- Technical Data Sheets (TDS)
- Safety Data Sheets (SDS)
- Certificates of Analysis (CoA)
- Product specifications
- Application-specific information
Do you provide support with regulatory requirements?
Yes. During product development, we consider relevant legal, technical, and industry-specific requirements from the outset.
This enables silicone defoamers to be specifically tailored to different markets and applications.
Can samples or development batches be provided?
Yes. For development projects and validation processes, we provide samples, pilot batches, or small quantities, depending on the specific project requirements.
This allows silicone defoamers to be tested under real process conditions.
How is a customized silicone defoamer developed?
Our development process typically includes:
- Requirements analysis
- Technical consulting
- Formulation development
- Laboratory and application testing
- Optimization and validation
- Series production
We support our customers throughout the entire process — from the initial concept to the final product solution.
What information do you need for an inquiry about silicone defoamers?
For a fast technical evaluation, the following information is helpful:
- Industry and application
- Foaming medium
- Currently used defoamer
- Temperature range
- pH value
- Dosage range
- Process conditions
- Required quantities
- Regulatory requirements
The more detailed the information provided, the more precisely a suitable silicone defoamer can be developed.
How quickly can a customized silicone defoamer be developed?
The development timeline depends on the complexity of the application, the required testing, and the scope of validation.
Following an initial technical analysis, we create a realistic project plan and coordinate the individual development steps together with you.

