Addivion DEF 06 is a silicone-based defoaming additive built on a solution of foam-destroying polysiloxane, formulated for solvent-borne and solvent-free coating systems. It delivers highly efficient, balanced defoaming that combines strong foam knockdown with good formulation compatibility. The product is widely used across solvent-borne paints, printing inks, overprint varnishes, and ambient-curing epoxy and polyurethane systems where reliable foam and bubble prevention is critical.
Addivion DEF 06 Overview
Addivion DEF 06 belongs to the family of silicone-based defoamers, in which a specially formulated polysiloxane is dispersed to achieve rapid, effective foam destruction across a broad range of solvent-borne and solvent-free formulations. Unlike some silicone defoamers that trade compatibility for defoaming strength, this grade is engineered to offer a good balance between the two, minimizing the risk of surface defects while still delivering strong foam control.
The product is supplied ready for direct incorporation into the millbase or letdown stage of a formulation. Beyond standard coatings and printing inks, it is also a highly effective air-release agent for ambient-curing plastic systems, helping reduce foam formation during the manufacture and processing of epoxy resin and polyurethane systems, including flooring and casting applications such as polymer concrete and mineral casting.
Key Features
- Silicone-based polysiloxane chemistry: Addivion DEF 06 is built on a foam-destroying polysiloxane solution, delivering highly efficient defoaming performance.
- Balanced effectiveness and compatibility: The product offers optimum defoaming while minimizing the surface defects sometimes associated with more aggressive silicone defoamers.
- Broad system suitability: Addivion DEF 06 performs well in both solvent-borne and solvent-free formulations, simplifying additive selection across a formulator’s product range.
- Effective in ambient-curing plastic systems: The product is a highly effective air-release agent for epoxy resin and polyurethane systems cured under ambient conditions.
- Suitable for flooring and casting applications: The product performs well in polymer concrete and mineral casting systems, where trapped air can compromise part quality.
Typical Applications
Addivion DEF 06 is primarily used as a defoaming additive in solvent-borne paints, printing inks, and overprint varnishes, where its balanced effectiveness and compatibility support clean, defect-free films without sacrificing foam control. It is also widely applied in ambient-curing epoxy and polyurethane systems, where entrapped air and surface foam can compromise both mechanical performance and visual appearance.
Beyond standard coatings and inks, the product is valuable in flooring and casting systems such as polymer concrete and mineral casting, where reliable air release directly affects final part quality. For pigment wetting and dispersion alongside foam control, formulators often evaluate Addivion DISP 20 in combination with this grade.
Technical Specifications
The product is characterized by the following indicative technical parameters; confirmed values will be provided in the final product specification sheet.
- Chemical type: Solution of foam-destroying polysiloxane
- Chemistry class: Silicone-based defoamer
- Non-volatile matter: To be confirmed based on the final specification sheet.
- Density: To be confirmed based on the final specification sheet.
- Flash point: To be confirmed based on the final specification sheet.
- Recommended dosage: To be confirmed based on the final specification sheet.
- Function: Defoaming and air-release additive for solvent-borne and solvent-free systems
Silicone Defoamer Chemistry & Balanced Performance
Silicone-based defoamers such as Addivion DEF 06 work by locally lowering the surface tension at air bubble interfaces, causing the bubble film to thin and rupture. Because silicone-based active phases are typically far more surface-active than organic alternatives such as polyolefins, they tend to deliver stronger defoaming action, but at a higher risk of surface defects such as craters or fisheyes if not carefully balanced. This grade is formulated to strike that balance, offering strong foam knockdown while limiting compatibility issues in typical solvent-borne and solvent-free systems.
As with all defoamers, incorporation method matters significantly for performance: to achieve optimal defoaming, the product should be added to the millbase; if incorporated at a later stage, sufficient shear forces must be applied to ensure good defoamer distribution throughout the formulation. In clear or transparent systems, the effect of the defoamer on optical clarity should always be tested before full-scale use.
Storage Recommendations
- Store in the original, tightly sealed container, protected from moisture, heat, and foreign material.
- Recommended storage temperature: 0-30°C.
- Shelf life: To be confirmed based on the final specification sheet.
- Protect from direct sunlight during storage and transport.
Documentation & Compliance
Each shipment of the product is supported by standard quality and compliance documentation to help customers manage incoming inspection, formulation approval, and downstream regulatory reporting.
- Certificate of Analysis (COA): Provided per batch
- Safety Data Sheet (SDS): Mandatory prior to handling
- Labels: Prepared in accordance with applicable regulations
- Industrial and professional use only
Formulation Guidance
When formulating with this defoaming additive, dosage should be optimized through a small test series rather than assumed from general guidance, since the correct level depends on binder polarity, application method, and the specific foam or air-entrainment challenge in the target system. As a general starting point for silicone-based defoamers of this type, dosage levels are typically determined as a small percentage of the total formulation, with the exact optimum established by trial across the target pigment, binder, and processing conditions.
Because the product is silicone-based, formulators working in systems sensitive to silicone contamination, such as automotive refinish or certain recoating applications, should confirm compatibility through small-scale trials before full-batch use. For a silicone-free alternative in applications where silicone must be avoided, formulators may wish to evaluate Addivion RHEO 18.
Packaging & Logistics
- Packaging: Approved industrial packaging
- MOQ: Subject to packaging configuration
- Lead time: Indicative lead time, to be confirmed upon order acceptance
- Incoterms: Quoted case by case
Addivion DEF 06: Safety & Handling
Addivion DEF 06 should be handled in accordance with standard industrial hygiene practices for coatings and printing ink additives. Users are advised to review the Safety Data Sheet prior to handling and to implement appropriate personal protective equipment and engineering controls as specified therein. As with all defoaming additives, small-scale compatibility and dosage trials are recommended before full-batch formulation to confirm performance and to check for any effect on clarity, gloss, or recoat adhesion in the target system.
Safety Data Sheet and destination-compliant labeling information for the product are available upon request. For related additive options, see also Addivion RHEO 18 and Addivion SURF 55.