Concrete defoamer supplied by Henan Kingsun is a compound composed of polyether surfactant and dry powder material. It has the characteristics of high efficiency, low addition amount, and faster reaction speed than traditional defoamer powder. It usually completes defoaming within 30 seconds after mixing with water. It is suitable for defoaming under strong acid and alkali conditions. When the pH value of the defoaming system is 14, this series of defoaming agents can maintain a good physical state, no demulsification, no oil floating, rapid defoaming, long-lasting foam suppression, and non-toxic, odorless. Meanwhile, it will not cause any pollution to the environment. This product delivers effective defoaming performance at a low dosage, resulting in a highly cost-efficient solution.
- Product Name: Concrete Defoamer
- Type: Powder & Liquid
- Appearance: White or light grey powder, milky to pale yellow liquid
- CAS No. 9003-13-8
- HS Code:3402420000
As a functional additive specially developed for cement-based systems, cement defoamer effectively controls harmful air bubbles generated during mixing and application, significantly improving both processing performance and final product quality. It is particularly suitable for cement-based materials such as grouting materials, self-leveling cement and gypsum products, and other materials with special requirements for surface appearance.
Product Models of Concrete Defoamer Powder & Liquid
| Item | SDF-05 | SDF-07 | SDF-06H | SDF-08H |
| Appearance | White to light grey powder | |||
| Bulk density(kg/m3) | 300-450 | 300-450 | ||
| PH value(10% in water) | 7.5-9.0 | 7.0-7.5 | 7.0-7.5 | |
| Solubility | Water repellency, dispersible in water with partial precipitation | |||
| Dosage | Both SDF-05 and SDF-07 should be dry-blended with the other dry ingredients at a minimal dosage of 0.01% to 0.2% by total weight of components. | The recommended dosage of defoamer chemical in various systems is 0.1‰ to 1.0‰ of the system. For general defoaming requirements, a dosage of 0.1‰ to 0.3‰ is sufficient. If surface quality is a concern, the dosage can be increased. | ||
| Packing | 25kg bags | |||
| Detection index | DF-17 | DF-25 | DF-27 | MO-01 |
| Appearance | milky white | transparent | transparent | milky to pale yellow |
| Density (g/l) | 0.9-1 | 0.94-1 | 0.94-1 | 0.94-0.97 |
| Active ingredients（%） | 15±1 | 100 | 100 | 99-100 |
| Application | They have a good compatibility with acrylic emulsion and PCE superplasticizer, therefore, it is widely used in various coatings, mortars and concretes with requirements for bubbles, such as various types of paint, commercial mortar, commercial concrete, prefabricated components, etc. | Due to its extremely low VOC, this product has good compatibility with VAE emulsion, acrylic emulsion, styrene-butadiene emulsion, etc., so it is widely used in various coatings that require bubbles, especially for building interior wall coatings. | ||
| Dosage | These products should be added at a minimal dosage of 0.01% to 0.5% by total weight of components. The actual dosage should be determined through suitable tests prior to production and application. | |||
| Packaging | 200kg/drum，1000kg/ drum | |||
Performance Advantages
- High-Efficiency Defoaming and Rapid Air Release. The defoamer for concrete admixtures exhibits excellent defoaming and air-release capability, quickly eliminating entrapped air bubbles and effectively suppressing the formation of new foam during mixing and placement, resulting in a lower overall air content.
- Low Dosage, Cost-Effective Performance. Effective at very low addition levels, concrete defoamer chemical delivers stable and reliable performance without adversely affecting the formulation, providing outstanding cost efficiency for large-scale industrial applications.
- Excellent Compatibility with Cementitious Systems. It shows good compatibility with cement, fly ash, slag powder, gypsum, water-reducing agents, redispersible polymer powders, and other commonly used additives, without causing segregation, precipitation, or adverse reactions.
- Improved Workability and Processing Stability. By reducing excessive air content, cement defoamer helps prevent segregation, bleeding, and abnormal rheology, ensuring a more uniform, dense, and stable slurry with improved workability.
- Enhanced Mechanical Properties. Lower internal porosity contributes to improved compressive strength, flexural strength, and long-term durability of concrete and mortar products.
- Superior Surface Appearance. Defoaming agent significantly reduces surface defects such as pinholes, blowholes, and honeycombing, resulting in a smoother and more uniform finished surface that meets high aesthetic requirements.
- High Stability and Broad Application Range. This product maintains stable performance under typical ambient conditions and is widely applicable to ready-mix concrete, dry-mix mortar, self-leveling compounds, grouting materials, repair mortars, and other cement-based construction materials.
- Construction industry. In the production process of building materials such as concrete, cement mortar, putty, etc., The use of concrete defoamer chemical can effectively control the generation of bubbles and improve the density and strength of the products.
- Road construction. During road construction, the use of concrete defoaming agents can reduce bubbles in road construction and improve the smoothness and durability of the road.
- Prefabricated component production. In the production process of prefabricated components such as beams, columns, and plates, the use of cement defoamers can improve the appearance quality of the products and improve their performance.
- Other fields. Cement defoamer chemical can also be used in water conservancy, power, ports and other projects, such as the concrete pouring process of reservoir dams, hydropower stations, docks and other projects.
- Improve Concrete Performance and Durability. Entrapped air bubbles can loosen the internal structure of concrete, reducing load-bearing capacity. Excessive air content also increases water absorption while lowering impermeability and durability, ultimately shortening the service life of concrete. Concrete defoaming agents effectively eliminate these bubbles, helping maintain a dense and durable matrix.
- Enhance Construction Quality and Surface Appearance. During pouring and vibration, air bubbles hinder proper compaction, leading to surface defects such as pores, pinholes, and honeycombing. The use of concrete defoamer removes trapped air, resulting in smoother, more uniform, and visually improved concrete surfaces.
- Increase Construction Efficiency. By improving the fluidity and workability of concrete, defoamers facilitate easier placement and pouring. This enhances construction efficiency, reduces labor intensity, and shortens construction time.
- Strengthen Mechanical Properties. By minimizing internal voids, concrete defoamers increase density and compressive strength, thereby enhancing the overall mechanical performance of the finished concrete.
- Wide Applicability Across Construction Conditions. Concrete defoaming agents offer excellent adaptability and dispersibility, making them suitable for various concrete formulations and construction environments. They act rapidly to eliminate bubbles, ensuring consistent performance under different application conditions.
- Organic silicon defoamers. This type of defoamer agent has the characteristics of low surface tension, high surface activity, strong defoaming ability, small dosage and low cost. However, they have poor compatibility with concrete materials.
- Polyether defoamers. Polyether defoamers have good defoaming and anti-foaming functions and good compatibility with concrete. Although its defoaming effect is not as strong as that of organic silicon defoamers, its application effect in concrete is stable.
- Polyether modified silicon defoamers. This defoamer chemical combines the advantages of organic silicon and polyether defoamers, with strong defoaming ability, good compatibility and less addition. However, its price is relatively high.
- Polycarboxylic acid defoamers. Mainly used for polycarboxylic acid water reducers, waterproofing agents, environmentally friendly concrete admixtures, etc. They have stable chemical properties, are not affected by the environment, and are suitable for use in low temperature areas.
- Defoamer powder for cement mortar. Suitable for interior and exterior wall putty, gypsum prefabricated panels, plastering plaster, caulking agents and other scenes. This powdered defoamer has strong fluidity, convenient transportation, and high compatibility.