Defoaming agent 4394
Category：Coating Additives
Introduction
Defoaming Agent 4394: Technical Overview
Defoaming agent 4394 is a high-performance additive designed to eliminate foam and air entrapment in coatings, adhesives, and related formulations. The following tables summarize its key technical characteristics and applications.
1. Basic Properties
| Property | Specification |
|---|---|
| Chemical Type | Modified polysiloxane compound |
| Appearance | Milky white emulsion or clear liquid |
| Active Content | 20–50% (water-based), 80–100% (solvent-based) |
| pH Stability | 3–11 |
| Compatibility | Water-based & solvent-based systems |
2. Performance Advantages
| Feature | Benefit |
|---|---|
| Fast Defoaming | Rapid bubble collapse during mixing |
| Long-Term Stability | Prevents foam reformation over time |
| Low Surface Tension | Effective in high-viscosity systems |
| No Surface Defects | Minimizes craters or fish eyes |
3. Comparison with Common Defoamers
| Parameter | Defoamer 4394 | Mineral Oil-Based | Silicone-Free Polymer |
|---|---|---|---|
| Defoaming Speed | Very Fast | Moderate | Slow |
| Compatibility | Excellent | Good | Limited |
| Film Clarity | No Impact | May cause haze | No Impact |
| Cost Efficiency | Moderate | Low | High |
4. Recommended Applications
| Industry | Typical Uses |
|---|---|
| Paints & Coatings | Waterborne architectural paints, industrial coatings |
| Adhesives | PSA (pressure-sensitive adhesives), wood glues |
| Printing Inks | Flexographic, gravure inks |
| Construction | Cement additives, gypsum formulations |
5. Formulation Guidelines
| System Type | Dosage Range | Incorporation Method |
|---|---|---|
| Water-Based | 0.1–0.5% | Add during pigment dispersion |
| Solvent-Based | 0.05–0.3% | Blend with resins/solvents |
| High-Shear | 0.2–1.0% | Post-add after grinding |
6. Limitations & Solutions
| Challenge | Solution |
|---|---|
| Overuse | Reduce dosage to avoid film defects |
| Storage Separation | Stir before use; avoid freezing |
| High-Temp Stability | Not suitable for >150°C curing systems |
Conclusion
Defoaming agent 4394 provides efficient and stable foam control across diverse formulations, balancing rapid action with long-term performance. Its compatibility with both water-based and solvent-based systems makes it a versatile choice for coatings, adhesives, and inks.
product description
4394 is a special polymer defoaming flow agent without silicone, suitable for oil coating system, excellent defoaming and defoaming ability to adjust the flatness of the surface of the film and prevent the film boiling (foaming) also has a very good effect.
Parameters of properties
surface：Light yellow to yellow liquid
Density (g / ml) ：0.89
actives,(%) ：70
Note: The above is a typical data and does not represent its specifications
Application characteristics and advantages
4394 Defoaming agent wide applicability, alkyd resin, acrylic resin, polyester resin, epoxy resin, polyurethane coating, nitrocellulose coating, ethylene chloride resin all have good defoaming performance. Excellent desoaming ability, so that it is suitable for porous material board, asbestos tile and other coating operations. Recommended dosage: 0.1-3.0% (based on the total formulation).
The above added amount is for reference only, and the optimal added amount should be determined by experiment.safety instruction
Before using this product, please refer to the Material Safety Data (MSDS) for obtaining detailed product safety data, recommended disposal and prevention methods, and product storage methods
disclaimer
The above information is based on our current expertise and aims to make general recommendations on the use methods and requirements of the product. Due to the change of the use environment and the actual operation is beyond our control range, please test and evaluate the product before use to ensure that our product can be used efficiently and safely. The above information and parameters are only applicable for reference to understanding and using this product under general conditions. We ensure that the sales product parameters will meet the company’s factory sales specifications.* * For more information, please refer to the material safety data sheet of the product
Factory & Shipment
