EZHOU ANJEKA TECHNOLOGY CO.,Ltd

In the formulation world of coatings, inks, and adhesives, leveling agents, despite their minuscule addition, play a pivotal role in the final appearance and performance, akin to "a small weight lifting a heavy load." Faced with a dazzling array of products on the market, formulation engineers often encounter a fundamental yet crucial choice: what exactly is the difference between silicone-containing and non-silicone leveling agents? How does this choice impact every stage from application to film formation? This article attempts to delineate the core functional boundaries of these two types of leveling agents, providing a clear reference for your precise selection.   I. Functional Mechanism: Different Paths, Solving Different Problems The role of a leveling agent is essentially to regulate the surface tension and flow behavior of the coating. Silicone-containing (typically referring to organosilicon types) and non-silicone (such as acrylate, polyester types) leveling agents achieve this goal through different chemical pathways. Silicone Leveling Agents: The "Powerful Regulators" of Surface Tension Their core advantage lies in significantly reducing the system's surface tension. These products can rapidly migrate to the interface between the film surface and the substrate, greatly improving the spreading ability on difficult-to-wet substrates (such as metal with oil contamination, polyethylene film, waxed paper, etc.), thereby effectively preventing defects like craters, pinholes, and fisheyes. Depending on the mode of tension reduction, some excel at lowering static surface tension (e.g., Anjeka7422), solving static spreading issues; others can balance both dynamic and static surface tension (e.g., Anjeka7425A), making them more suitable for high-speed application scenarios like spraying or curtain coating. Some silicone leveling agents can also impart a smooth, slippery feel to the film. However, their powerful surface activity can also bring side effects; for instance, excessive surface enrichment of certain products may pose a challenge to intercoat adhesion (recoatability). Non-Silicone Leveling Agents: The "Internal Coordinators" of Flow Balance These leveling agents typically have better compatibility with the system resin. Their primary function is not to drastically lower the overall surface tension, but rather to promote long-wave leveling by regulating solvent evaporation rates and surface tension gradients within the coating through their polymer chains. This means they can effectively reduce orange peel, making the film more uniform, full-bodied, and significantly enhancing distinctness of image (DOI) and gloss. Since they are less likely to form a barrier layer at the interface, one of their greatest advantages is that they generally do not affect recoatability, making them a safe choice for multi-layer coating systems (e.g., automotive refinish paints). Some modified acrylate products (e.g., Anjeka7361) also possess certain defoaming effects.   II. Application Impact: Your Choice Determines the Film's "Fate" Choosing which type of leveling agent directly correlates to the final application experience and film quality. When facing these challenges, silicone leveling agents should be prioritized: Poor substrate wetting: Substrates are oily, waxy, or inherently low surface energy (e.g., certain plastics). Stubborn craters: The formulation is sensitive to contamination, prone to pinholes, fisheyes. High-speed application requirements: Such as spraying, curtain coating, requiring rapid wetting. Need for specific feel: Requiring a smooth, slippery film surface. UV curing systems: Some silicone products (e.g., Anjeka7331) are common choices for UV systems. When your goal is these performances, non-silicone leveling agents are often the better solution: Ultimate appearance: Pursuing high fullness, high DOI, mirror-like effects. Must guarantee recoatability: All occasions requiring multi-layer coating or later repair. Concern about compatibility issues: Avoiding haze or whitening caused by poor compatibility between the leveling agent and resin. General long-wave leveling improvement: Further enhancing smoothness where no obvious cratering issues exist. III. Selection Logic: Start from the Pain Point, Apply the Right Remedy There is no "best" leveling agent, only the "most suitable" one. The following logic is recommended: Primary Diagnosis of the Core Pain Point: Is it a substrate wetting/cratering problem, or a film overall leveling/appearance problem? The former guides towards silicone leveling agents, the latter towards non-silicone ones. Examine System Hard Constraints: Does the system require recoating? This is a key screening criterion. If recoating is needed, products that do not affect recoatability, such as Anjeka7380, 7361, 7412, should be prioritized. Match Application Process and Detail Requirements: Are there special conditions like high-speed application, screen printing (requires non-foaming), or extreme demands for transparency? These will help you further focus within the same product category. Verification and Fine-tuning: Ultimately, compatibility and effectiveness must be verified through experimentation. Sometimes, using both types at low doses can combine their strengths (e.g., using a minimal amount of silicone leveling agent to solve wetting, then using a non-silicone one to ensure overall leveling and recoatability). The selection of a leveling agent is an art of balance. Silicone and non-silicone are not a simple matter of superiority or inferiority, but rather functional toolkits for different application scenarios. Understanding the principles and impacts behind them allows one to break free from the cycle of blind trial and error, enabling this trace additive to truly become the "finishing touch" that shapes the perfect film. Based on a deep understanding of application scenarios, Anjeka Technology offers a variety of leveling agent choices covering both categories, aiming to provide formulation engineers with more precise and reliable solutions when tackling complex challenges.

In the world of coatings, inks, and adhesives, leveling agents, though minor components, are often the key to determining the "life or death" of a film's appearance. Faced with a dazzling array of leveling agents on the market—silicone, polyester, acrylic... have you ever wondered: What exactly are their differences? Which one should I use for my system? Choosing the wrong one not only wastes costs but can also lead to fatal defects like craters, orange peel, and poor recoatability. This article systematically categorizes the major types of leveling agents, analyzes their mechanisms and core differences, and provides practical selection and matching strategies to help you move from "trial and error" to "knowledge," accurately solving leveling challenges.   I. The Four Major Schools of Leveling Agents: Chemical Type Determines Performance Foundation Leveling agents are not a single substance; their performance originates from their chemical structure. Based on product information in the knowledge base, they can be categorized into the following major types :   1.Silicone-based: This is the most classic family, further subdivided into: Polyether-modified Silicone (e.g., Anjeka7331): Provides moderate surface tension reduction in the system, offers good leveling, and is typically "non-foaming." It exhibits excellent compatibility in systems like epoxy, making it very suitable for applications requiring high transparency . Modified Silicone (e.g., Anjeka7410, 7411): These offer additional characteristics beyond leveling. 7410 has defoaming effects; while 7411 strongly reduces surface tension, providing outstanding substrate wetting capability and serving as a powerful tool for solving stubborn craters. 2.Polyester-based (e.g., Anjeka7380): This is a "powerhouse." Its chemical composition is polyester, offering excellent compatibility with resins. It not only improves leveling but is particularly adept at enhancing long-wave leveling, gloss, and distinctness of image (DOI) of the film, without affecting recoatability or intercoat adhesion. It is widely used in solvent-based coatings pursuing high decorative effects .   3.Acrylate-based: This includes ordinary polyacrylates and fluorine-modified polyacrylates (e.g., Anjeka7358A). These products typically only slightly reduce surface tension. Their core advantages lie in excellent leveling and anti-cratering capabilities, with almost no impact on recoatability and adhesion, and they do not cause haze. They are highly favored in fields like coil coatings and inks .   4.Water-based Specialized: Designed for water-based systems, such as Anjeka7361, 7412, 7422, 7425A, etc. They are tailored to the characteristics of water-based resins, offering targeted performance in wetting, leveling, and anti-cratering (especially against oil contamination), and attention must be paid to their water solubility or dispersibility .   II. Differences in Mechanism and Application: Why "Targeted Treatment" is So Important? Different types of leveling agents have distinct action mechanisms and areas of expertise. Understanding this is the prerequisite for correct selection. Differences in Action Mechanism: Surface tension control is the core. Silicone-based types, especially strong-effect ones (e.g., 7411), work by significantly reducing the coating's surface tension to "spread" the coating, overcoming substrate wetting issues and craters. Polyester-based (7380) and some acrylate-based types (7358A) primarily influence the internal flow of the wet film, promoting uniform leveling during drying, improving orange peel, and enhancing the appearance's fullness. Compatibility leads to different manifestations. Excellent compatibility (as demonstrated by 7331 and 7380 in epoxy systems) means the additive can exist uniformly and stably in the system, without precipitation or causing haze, ensuring a clear, transparent film. Conversely, leveling agents with slightly poorer compatibility can sometimes be used to control flooding and floating, but require careful evaluation. Focus on Application Scenarios: Solving "Craters" and "Poor Wetting": Prioritize products that strongly or moderately reduce surface tension, such as solvent-based 7411, or water-based 7422, which is sensitive to oil contamination . Pursuing "High Transparency," "High Gloss," and "DOI": Products with good compatibility like polyether silicone 7331 or polyester leveling agent 7380 are excellent choices. Experimental data shows that 7380 can effectively improve the 20° gloss of various systems. Requiring "No Impact on Recoatability": Avoid certain silicone products that may migrate to the film surface. Instead, choose types explicitly labeled as not affecting recoatability, such as polyester 7380 or acrylate 7358A . Concerns about "Foam Stabilization" in the System: Consider options with inherent defoaming functionality like 7410, or non-foaming types like 7331. III. Three-Step Matching Method: Navigating Your Efficient Selection How to quickly identify the target for a specific formulation? We recommend following this three-step method:   Step 1: Define the System, Clarify Needs First, determine if your system is solvent-based, water-based, or UV. This is the primary screening criterion. Next, clearly define the primary pain point to solve: Is it substrate wetting? Eliminating orange peel? Improving gloss? Or preventing poor recoatability? For example, if a water-based epoxy floor topcoat exhibits craters, case studies show that adding a wetting and leveling agent (e.g., 7425A) can effectively solve the problem.   Step 2: Consider Mechanism, Select Type Based on the needs from Step 1, match the mechanism: If substrates are complex and prone to craters, focus on types with strong wetting and surface tension reduction capabilities (silicone-based like 7411, or water-based wetting agents like 7422). If appearance requirements are high, with orange peel, focus on types that improve long-wave leveling (polyester-based like 7380). If there are recoatability or intercoat adhesion requirements, prioritize types that do not affect recoatability (polyester-based, acrylate-based). If the system is prone to foaming, consider products with defoaming functionality or non-foaming products. Step 3: Conduct Tests, Finalize Details After preliminarily selecting 1-2 types, laboratory testing is essential: Compatibility Test: Observe whether the resin remains clear after adding the agent and whether the film is transparent and haze-free. The compatibility test method for epoxy systems can serve as a reference. Performance Verification: Prepare panels at the recommended dosage (typically 0.05%-0.5%), and evaluate key indicators such as leveling, wetting, gloss, and recoatability to see if they meet standards. Optimization Confirmation: Fine-tune the dosage to find the optimal cost-performance point. The world of leveling agents is complex, but the principles remain constant. By understanding their "genes" from chemical types, discerning their capabilities from action mechanisms, and matching them to their "battlefield" from application scenarios, you can simplify complexity and make precise, efficient selection decisions. Anjeka Technology, deeply engaged in the additives field, offers a complete line of leveling agents from silicone and polyester to acrylate, covering solvent-based and water-based systems. We have accumulated extensive application test data and case studies, aiming to provide solid support for your formulation innovation.   If you are currently seeking solutions for specific leveling problems or wish to obtain more specific selection advice for your system, please feel free to contact us at any time. Request a free sample or request detailed product technical data, and let Anjeka's technical team assist you in creating the perfect film.

Advanced Guide to Ceramic Inkjet Printing: How to Achieve the Leap from "Making It" to "Making It Stable" through Dispersant Optimization?   In the field of ceramic inkjet printing, the creation of a high-performance ink is not only about vibrant colors and fine patterns but also critically depends on its long-term stability during production, storage, transportation, and even within the printhead. The dispersant, as the key component linking the pigment to the solvent and determining the "microscopic order" of the system, directly influences the ink's efficiency, quality, and lifespan. Today, we delve into the science of dispersion in low-polarity ceramic ink systems and share insights on how to achieve precise stability improvements based on your specific formulation.   I. Core Challenge: The Stability Dilemma in Low-Polarity Systems Unlike aqueous or high-polarity solvent systems, ceramic inkjet inks often use low-polarity solvents such as white oil, DBE, and fatty acid esters. These systems inherently have poor wettability for inorganic ceramic pigments (like cobalt blue, red-brown, encapsulated red, etc.), leading to three common pain points: Low Grinding Efficiency: Pigment aggregates are difficult to break down, resulting in time- and energy-consuming grinding processes. Prone to Sedimentation/Re-coarsening During Storage: Dispersed particles re-flocculate and settle due to van der Waals forces, affecting uniformity at best and clogging filters and nozzles at worst. Poor Heat Storage Stability: Ink properties change during summer storage or transportation, manifesting as viscosity fluctuations, particle size growth, and decreased filtration rates. The key to solving these problems lies in selecting a dispersant that can strongly anchor onto the pigment surface and provide sufficient steric hindrance and solvation.   II. Principle Overview: How Efficient Dispersants Build Stable Systems An excellent dispersant for low-polarity systems acts like a highly skilled "mediator": Strong Anchoring: Its molecular structure contains groups that strongly adsorb to the inorganic pigment surface, quickly displacing air or moisture to achieve thorough wetting. Three-Dimensional Protection: In low-polarity solvents, highly branched polymer chains can fully extend, forming a thick steric hindrance layer that effectively prevents pigment particles from re-flocculating due to Brownian motion collisions. Rheology Optimization: Through uniform and stable dispersion, internal friction within the system is reduced, allowing the ink to exhibit more ideal Newtonian or near-Newtonian fluid properties, which is crucial for ensuring smooth and consistent inkjet printing.   III. Precise Matching: No "Universal Cure," Only "Targeted Prescription" Through long-term service to the ceramic ink industry, Anjeka Technology has found that the effectiveness of a dispersant is strongly correlated with solvent type, pigment variety, and even process conditions. Therefore, we offer multiple specialized products and, based on extensive experimental data, provide the following selection guidelines: Basic Recommendation: For hydrocarbon and fatty acid ester-based low-polarity systems, Anjeka-6042A and Anjeka-6042B are proven core choices. Tailored to the Pigment: Experimental data shows that for red-brown pigments, Anjeka-6042A demonstrates excellent stability in terms of filtration rate after heat storage; while for cobalt blue pigments, Anjeka-6042B may have advantages in initial dispersion efficiency and centrifugal sedimentation rate. This indicates that matching tests based on the surface characteristics of specific pigments are key. Dosage Optimization: Dispersant dosage is not fixed. In white oil systems, when extremely high stability is required, appropriately increasing the dosage of Anjeka-6042A (e.g., 30%-50% based on pigment weight) can significantly reduce the centrifugal sedimentation rate and achieve better storage stability. The general recommended addition range is 10%-50% of the pigment weight, with the optimal point needing to be determined through gradient experiments. Solvent Influence: Please note that pure white oil systems typically yield the best stability performance. Introducing solvents like coconut oil acid ester or lauryl isopropyl ester may have varying effects on the centrifugal sedimentation rate. IV. Key Process Tips: The "Right Way" to Use Dispersants Addition Order is Paramount: To ensure the dispersant fully acts on each pigment particle, it is essential to first thoroughly mix the dispersant with the grinding solvent (e.g., white oil), and then add the ceramic pigment. Incorrect addition order will severely impact the final dispersion effect. The Role of Anti-settling Agents: When pigments have been efficiently dispersed to the target particle size (e.g., sub-micron level), the supplementary effect of many conventional anti-settling agents may become limited. At this stage, optimizing the selection and dosage of the dispersant itself is often a more fundamental approach to improving system stability. Stability Verification: Beyond initial fineness and viscosity, it is recommended to comprehensively assess the long-term stability of the ink through centrifugal sedimentation rate tests and heat storage experiments (e.g., storage at 50-60°C for 7 days), observing changes in viscosity, particle size growth, and sedimentation.   V. From "Experience" to "Precision": Anjeka's Solution Facing the complex challenge of ceramic ink stability, Anjeka not only provides serialized products like Anjeka-6042A and 6042B but is also committed to helping customers complete the leap from "empirical selection" to "data-driven precise matching" through professional technical services. We have a comprehensive experimental platform that can simulate your actual system (solvent, pigment, formulation) to conduct multi-dimensional comparative tests on dispersion efficiency, storage stability, and heat storage performance, using objective data to pinpoint the optimal solution for you.   Is your ceramic ink also plagued by issues like grinding efficiency, storage sedimentation, or re-coarsening after heat storage? Different pigment and solvent systems require different dispersion solutions. Contact us now to obtain the "Ceramic Ink Dispersant Selection Guide" and targeted samples. Please provide your system solvent, main pigment type, and current primary concerns. Anjeka's technical team will recommend matching solutions and support customized testing. Moving towards more stable and efficient ceramic ink production starts with a professional conversation.

When to Use Wetting and Leveling Agents, and Key Considerations for Selection to Avoid Pitfalls   In the formulation development and production processes of coatings, inks, and adhesives, surface defects in the film or adhesive layer—such as craters, orange peel, streaks, dimples, and uneven gloss—are among the most common challenges faced by engineers. These defects not only affect the product's appearance but can also compromise its protective properties, adhesion, and final performance. Wetting and leveling agents are key additives designed to address these surface issues. However, with a vast array of product models on the market, how to select the right one for your specific system and avoid "pitfalls" is a crucial skill for improving formulation success.   I. In What Situations Should You Consider Using Wetting and Leveling Agents? Wetting and leveling agents are not standard for all formulations, but they often play a decisive or even transformative role in the following scenarios: Addressing Substrate Wetting Challenges: When coatings or adhesives need to be applied to low-surface-energy, difficult-to-wet substrates, such as polyethylene (PE) or polypropylene (PP) films, certain metals, or oily surfaces, issues like craters, fisheyes, or poor adhesion are prone to occur. In such cases, wetting agents that can significantly reduce the system's surface tension are needed to improve spreading. Pursuing High-Quality Appearance: For fields with extremely high appearance requirements, such as furniture coatings, automotive refinish paints, and high-end electronic adhesives, leveling agents are necessary to eliminate long-wave defects like orange peel and brush marks, thereby enhancing the film's gloss, fullness, and distinctness of image (DOI). Solving Defects Caused by Surface Tension Imbalances: Significant differences in surface tension between different components in a formulation (e.g., resins, solvents, additives) or the introduction of low-surface-tension contaminants during production can easily lead to Bénard cells, flooding, craters, etc. Leveling agents help balance surface tension, promoting uniform flow and curing of the film. Balancing Multiple Functions in Complex Systems: In some water-based or sensitive systems, issues like poor wetting, easy foam generation, and poor leveling may coexist. Choosing multifunctional additives (e.g., products that combine wetting, leveling, and foam-inhibiting effects) can simplify formulations and improve efficiency. II. How to Choose for Different Systems? Four Key Guidelines to Avoid Pitfalls   Incorrect selection can lead to poor compatibility, loss of intercoat adhesion, foam stabilization, or even introduce new defects. Here are core selection recommendations and pitfalls to avoid based on common systems:   Guideline 1: Clarify System Polarity and Match Chemical Type   Solvent-Based Systems: Polyester-based leveling agents (e.g., Anjeka 7380) are widely used in PU, acrylic, epoxy, and other systems due to their good compatibility with most resins, excellent performance in enhancing gloss and long-wave leveling, and minimal impact on recoatability. Silicone-based agents (e.g., Anjeka 7331/7410) effectively reduce surface tension, improving substrate wetting and slip, but attention must be paid to their potential impact on intercoat adhesion. Water-Based Systems: It's necessary to choose surfactant types suitable for the aqueous phase. Acetylenic diol types (e.g., Anjeka 7414) can simultaneously reduce dynamic and static surface tension, are particularly effective on difficult-to-wet substrates, and also possess defoaming functionality. Strong surface tension reducers like acrylate or modified silicone products (e.g., Anjeka 7422/7412) are specifically used to address severe cratering issues. UV-Curing Systems: Products that do not affect curing speed and have good compatibility with prepolymers should be selected. Polyester types (e.g., Anjeka 7380) and certain modified silicone types (e.g., Anjeka 7331) are commonly used in UV systems. Guideline 2: Distinguish Between "Wetting" and "Leveling" to Target the Problem Solving "Craters" and "Pinholing": These are short-wave defects, usually stemming from poor substrate wetting or localized surface tension imbalances within the system. Priority should be given to wetting agents that can strongly reduce static surface tension, such as Anjeka 7411 or Anjeka 7422. Solving "Orange Peel" and "Brush Marks": These are long-wave defects related to the flow and leveling process of the coating after application. Agents that improve long-wave leveling should be chosen, such as polyester leveling agent Anjeka 7380 or modified acrylate leveling agent Anjeka 7361. Pursuing "High Gloss" and "Mirror Effect": Besides improving leveling, additives must be highly compatible with the resin and not affect film transparency. Polyester leveling agent Anjeka 7380 has clear application cases and data support in this regard. Guideline 3: Pay Attention to Side Effects and Conduct Compatibility Tests   Foam Stabilization vs. Defoaming: Some leveling agents (especially silicone types) may introduce foam stabilization issues. If the system itself is prone to foaming, consider choosing leveling agents with foam-inhibiting effects, such as Anjeka 7410 or Anjeka 7361, or use them in combination with defoamers. Recoatability and Adhesion: In systems requiring multi-layer application, the impact of the leveling agent on intercoat adhesion must be evaluated. Polyester and acrylate types are generally safer for recoatability than traditional silicone types. Compatibility and Transparency: After addition, observe whether the clear coat becomes cloudy or whitish, and whether the cured film is transparent. This must be strictly verified through small-scale experiments. Guideline 4: Follow Recommended Addition Methods and Dosages Dosage: More is not always better with wetting and leveling agents. Excessive addition can lead to side effects (e.g., foam stabilization, affecting adhesion). The recommended dosage typically ranges from 0.1% to 1.0%, and the optimal point should be found through gradient experiments. Addition Method: Most additives can be added during the paint adjustment stage under slow stirring. However, certain products (e.g., Anjeka 7414) may require high-speed stirring to ensure thorough dispersion. Always refer to the product instructions for operation. III. Anjeka Solutions: Empowering Different Scenarios with Precision To address the diverse and complex needs mentioned above, Anjeka Technology offers a rich portfolio of wetting and leveling agents to tackle various challenges:   Pursuing Ultimate Gloss and Leveling: In solvent-based PU and acrylic systems, Anjeka 7380 Polyester Leveling Agent can effectively enhance gloss and DOI, with good compatibility, making it a reliable choice for high-end appearance applications. Conquering Difficult-to-Wet Substrates and Craters: For plastics like PE with poor adhesion or systems prone to cratering, Anjeka 7411 or, in water-based systems, Anjeka 7422, can strongly reduce surface tension, solving the problem at its source. Multifunctional Needs in Water-Based Systems: In water-based adhesives and coatings facing simultaneous challenges of wetting, leveling, and foaming, Anjeka 7414 Acetylenic Diol Surfactant offers a simplified, multi-effect solution. Specialty Material Applications: For specialty fields like epoxy potting compounds, conductive silver pastes, and liquid silicone rubber, we have proven products such as Anjeka 7331/7333/7358 available for selection. Selecting wetting and leveling agents is an art of balance, requiring consideration of multiple factors including the system, defect type, and process requirements. If you are seeking solutions for specific surface defect problems or wish to optimize existing formulations for superior appearance performance, Anjeka's technical service team is ready to support you.   Take Action Now for a Tailored Solution: Request Free Samples: Click here or message us, specify your system (resin type, solvent, application) and specific issues to apply for relevant additive samples for testing. Technical Consultation: Our engineers can provide preliminary selection advice and problem diagnosis.  

Choosing the Right Defoamer is Half the Battle for Waterborne Formulations: An Anjeka High-Frequency Problem Analysis     In the R&D and production of waterborne coatings, inks, and adhesives, foam issues are like a persistent ailment. They not only affect production efficiency and equipment utilization but can also lead to fatal defects in the film such as craters, fisheyes, and pinholing, severely impacting the final product's appearance and performance. Faced with a dazzling array of defoamer products on the market, how can one make a precise choice and avoid "robbing Peter to pay Paul"? Today, drawing on the extensive practical cases accumulated by Anjeka Technology, we provide a clear logic chart for selecting waterborne defoamers.   I. Primary Principle: Define Core Needs, Go Beyond Just "Defoaming" The first step in choosing a defoamer is to move beyond the single-minded thinking of "just needing to eliminate foam." An excellent defoamer solution needs to balance the following multi-dimensional objectives: Long-lasting foam suppression: Inhibits foam generation during dynamic processes like production stirring, pumping, and filling. Rapid bubble breaking: Quickly bursts existing foam, especially large bubbles. Excellent compatibility: Must not introduce new surface defects like craters, oil spots, or floating oil. System adaptability: Coexists peacefully with resin systems (acrylic, epoxy, PU, etc.), pigments/fillers, and other additives in the formulation. Meeting special requirements: Such as not affecting recoatability, transparency, or high-temperature resistance. Several of Anjeka's waterborne defoamer models, such as Anjeka5063 5062A, are designed based on the composite goal of "foam suppression, defoaming, and addressing cratering risk," providing a good compatibility foundation with mainstream waterborne resin systems.   II. High-Frequency Scenarios and Direct Selection Strategies Based on frontline feedback from our extensive interactions with engineers, the following scenarios are most common: Scenario 1: General-purpose waterborne industrial paints/inks, pursuing stability and compatibility Pain point: Diverse formulation systems (acrylic, epoxy, PU, etc.), requiring a defoamer with strong versatility and low risk of error. Strategy: Choose a model with both foam suppression and defoaming properties that is explicitly labeled as "addressing cratering risk" as a base. For example, Anjeka-5062A, which has a wide application range and can be post-added, providing flexibility for formulation adjustments.   Scenario 2: Waterborne epoxy systems (e.g., floor coatings), where thick-film application and defoaming are challenging Pain point: Epoxy systems themselves tend to stabilize foam; bubbles struggle to escape during thick-film application, easily leading to pinholing. Strategy: Select models specifically enhanced for defoaming capability. Anjeka-5063 and Anjeka-5062A are particularly noted as "especially suitable for waterborne epoxy flooring applications." For mechanical foam generated during spraying or micro-bubbles in thick films, consider combining with Anjeka-7414. Its property of reducing dynamic surface tension helps with bubble coalescence and release.   Scenario 3: Waterborne baking paints or systems requiring good recoatability Pain point: After high-temperature baking, some defoamers may migrate to the surface, affecting intercoat adhesion. Strategy: Avoid using a single defoamer that might affect recoatability. Case studies show that in waterborne baking paint systems, using a combination of Anjeka-5062A and Anjeka-7414 can ensure defoaming capability while also considering intercoat adhesion requirements.   Scenario 4: High-speed dispersion (e.g., adding matting agents) or continuous foam generation during production Pain point: Large amounts of foam are generated during production processes (like grinding, high-speed dispersion), requiring strong foam suppression. Strategy: Adding the defoamer before grinding or stirring maximizes its foam suppression performance. For extreme foam generation conditions, evaluate the defoamer's long-lasting foam suppression.   III. "Pitfalls" to Avoid and Golden Rules of Use The "Instant Effect" Misconception: The full effect of a defoamer after addition requires 24 hours to stabilize. Therefore, testing and evaluation must allow sufficient time to avoid misjudgment. Addition Method Determines Effect: For the best foam suppression effect, add it during the grinding stage. If post-added as a remedy, ensure thorough and uniform stirring, otherwise, it may cause local compatibility issues. Storage and Pre-treatment: Product storage below 5°C may cause separation. Before use, please heat to 20°C and mix thoroughly. Using a separated product directly will greatly reduce effectiveness and pose high risks. Dosage is Not Higher the Better: The recommended dosage range is 0.05%-1.0%. It is essential to determine the optimal point through gradient experiments. Excessive addition not only increases costs but may also cause side effects like craters and oil spots.   IV. When a Single Model is Insufficient: Blending Strategy   No single defoamer is a panacea. Faced with complex systems or stubborn foam, blending is a common strategy for experienced engineers: Suppression + Breaking: For example, using 5062A to provide persistent foam suppression, combined with 7414 to enhance bubble breaking and dynamic defoaming capability, tackling spraying and thick-film application challenges. Silicone + Non-silicone: In systems extremely sensitive to compatibility or requiring silicone-free formulations, consider blending silicone-based types with non-silicone types to balance defoaming power and compatibility.   Selecting a waterborne defoamer is an art of balance. It tests the comprehensive understanding of the system's nature, production processes, and the root causes of defects. Anjeka Technology, deeply rooted in the industry, has accumulated a complete library of waterborne defoamer solutions, from general-purpose to specialty, from single-use to blended. We not only provide products but are also willing to share these selection logics and experience in avoiding pitfalls derived from practical applications.

 EZHOU ANJEKA TECHNOLOGY CO.,Ltd                                                professional additives manufacturer Experiment Record Form Test Name: Epoxy Resin Silica Microsphere Filler Slurry Temperature/Humidity:   Client:   Applicant: Mr Yang Test Date: February 26, 2026     Objective: Testing viscosity reduction, defoaming, and anti-settling properties of filler slurry for epoxy potting compounds Pigment Paste Formulation  40  692 1.2  Dispersant 0.2 6912, 6910A, 6911A Defoamer 0.2 5680A, 5088 Anti-settling Agent 0.2 6710, 4410S Silica Microsphere 60 Customer 128 Resin 40 Customer           692 1.2 Customer           Dispersant 0.2 6912,6910A,6911A           Defoamer 0.2 5680A,5088           Anti-settling Agent 0.2 6710,4410S           Silica Microsphere 60 Customer           Experimental Method High-speed stirring at 2000 rpm for 15 minutes for comparison. Test Results Test  6710 4410S 6912 6910A 6911A 6912 6910A 6911A  382123 179552 276233 244006 110493 138117 178266  375217 377519 379821 195665 Gloss 20°:22.2 60°:93.8 20°: 66.4 60°: 99.4 20°: 38.5 60°：83.1 20°: 16.2 60°: 92.6 20°: 38.9 60°：90.7 20°: 43.5 60°：89.5 20°: 42.2 60°: 92 Anti-settling Soft sedimentation No sedimentation No sedimentation No sedimentation Soft sedimentation No sedimentation Soft sedimentation Test Blank 6710 4410S 6912 6910A 6911A 6912 6910A 6911A Pre-Heat Storage Viscosity 382123 179552 276233 244006 110493 138117 178266 Viscosity after 1 day thermal storage   375217 377519 379821   195665   Gloss 20°:22.2 60°:93.8 20°: 66.4 60°: 99.4 20°: 38.5 60°：83.1 20°: 16.2 60°: 92.6 20°: 38.9 60°：90.7 20°: 43.5 60°：89.5 20°: 42.2 60°: 92 Anti-settling Soft sedimentation No sedimentation No sedimentation No sedimentation Soft sedimentation No sedimentation Soft sedimentation Defoaming: 6910A demonstrated the best defoaming effect in 4410S, with minimal bubbles around the cup and no surface bubbles. Testing 4410S 5088 5680A 6910A(0.2%) 6910A(0.4%) 6910A (0.4%) Viscosity before thermal storage 225591 250912 262422 Viscosity after 1 day thermal storage 264724 375279 271779 Gloss 20°: 58.4 60°：98.5 20°: 70.8 60°：99.1 20°: 60 60°: 93.7 Settling No sediment No sediment No sediment Defoaming Minimal bubbles around cup, no surface bubbles Surface bubbles present Test 4410S         5088 5680A         6910A(0.2%) 6910A(0.4%) 6910A(0.4%)         Viscosity before thermal storage 225591 250912 262422         Viscosity after 1 day thermal storage 264724 375279 271779         Gloss 20°: 58.4 60°：98.5 20°: 70.8 60°：99.1 20°: 60 60°: 93.7         Anti-settling No sedimentation No sedimentation No sedimentation         Defoaming Minimal bubbles around the cup, no surface bubbles Surface bubbles present         Conclusion The best results were achieved using 4410S as the anti-settling agent, 6910A as the dispersant, and 5088 as the defoamer.

Domestic Substitution in Supply Chain Security: A Necessary Backup or the Starting Point for Value Reinvention?   In recent years, “domestic substitution” has evolved beyond a temporary slogan during supply chain tensions, becoming a deeply ingrained strategic consideration in industries like coatings, inks, and adhesives. From the 14th Five-Year Plan's emphasis on self-reliance in critical raw materials to the supply chain uncertainties brought by geopolitical fluctuations, “using domestic products” has acquired multiple meanings beyond mere cost considerations. Yet within technical circles, discussions about domestic additives remain fraught with tension: some view them as a “lifeline” for supply security, while others harbor lingering doubts about their performance stability. What path does domestic substitution truly entail?   I. The Core Controversy: Substitution Extends Beyond “1:1” Replacement Whenever “substitution” is mentioned, engineers' first reaction is often: “What percentage of the original product's performance parameters can it achieve?” This question reflects an extreme pursuit of stability and reliability. Decades of application data and brand reputation for imported products form a formidable trust barrier. Yet true substitution may not be a simple “copy-paste” operation. It occurs across at least three dimensions: Functional Substitution: Achieving equivalent or superior performance in specific core functions (e.g., carbon black dispersion, anti-settling, defoaming). System Substitution: Addressing identical pain points (e.g., cratering, poor leveling) within the customer's specific formulation system (water-based/solvent-based/UV). Cost and Supply Chain Substitution: Delivering superior cost-effectiveness and stable, reliable supply assurance while meeting fundamental performance requirements. Domestic additives are rapidly evolving from early-stage “solving availability issues” to “deep optimization for niche scenarios.” Benchmarking R&D is the starting point, but the ultimate goal lies in integrating and enhancing the customer's formulation ecosystem.   II. The Advancement of Domestic Additives: From “Benchmarking” to “Tailored Solutions” The market offers no mercy to the weak. Domestic additive manufacturers survive by responding more nimbly to market demands. We observe: Response Speed: When the market demands substitutes for specific imported grades (e.g., BYK-110, BYK111), they swiftly provide validated alternatives (e.g., 6110, 6860), shortening customer R&D cycles. Solution Flexibility: For a single imported product, multiple replacement options with distinct focuses may be offered. For dispersants, choices range from cost-effective solutions to formulations optimized for demanding systems. This flexibility reflects domestic manufacturers' market proximity. Localized Application Support: Streamlined technical communication, rapid sample response times, and deep understanding of common domestic raw material systems form unique service advantages.   III. A Rational Decision-Making Framework for Product Managers and Technical Readers When addressing domestic substitution, neither emotional endorsement nor rejection is advisable. We recommend a rational evaluation framework: Define Substitution Goals: Is the objective to address short-term supply chain disruptions or achieve long-term cost reduction and efficiency gains? Is it a comprehensive replacement, or a pilot test starting with a specific product or secondary performance aspect? Establish a Scientific Validation Process: Discussing substitution without considering the specific system is meaningless. Candidate domestic additives must be tested within the complete formulation, evaluating the entire chain from processability and storage stability to final coating film performance. Focus on Comprehensive Value: Evaluation dimensions should include unit price, dosage rate, impact on other system properties, supplier technical support capabilities, and long-term supply stability. Sometimes, domestic additives may offer greater advantages in total cost (including risk costs). Embrace a “Re-optimization” Mindset: Replacement isn't merely substitution. It presents an opportunity for reformulation optimization. Leveraging the distinct characteristics of domestic additives may uncover new performance balance points.   IV. Anjeka's Role: Providing Reliable “Replacement Options” We understand that trust is built on every reliable delivery. At Anjeka, we are committed to: Clear Benchmarking: Based on extensive market feedback and testing, we clearly define our products' primary applications and the range of import products they can replace, guiding your selection process. Scenario-Based Recommendations: We don't just answer “Can it be replaced?” but focus on “How to use it effectively in your system.” Whether addressing dispersion challenges in inks or special requirements in rubber systems, we provide targeted advice. Open Verification: We firmly believe “results are the sole criterion for truth.” We provide samples to support your most authentic evaluations within your own production lines and formulations. The wave of domestic substitution has arrived—it presents both challenges and opportunities to reshape the industry landscape. Whether we view it as a “backup option” or embrace it as a “new value partner” depends on our careful evaluation and experimentation with each product.    

In the production and application of coatings, inks, and adhesives, bubbles are a persistent and troublesome “regular guest.” They not only impact production efficiency and material utilization but also cause defects like pinholes and cratering in the final film layer, severely compromising product appearance and protective performance. Selecting the right defoamer is like hiring a professional “foam management expert” for your system. But with countless products available, how do you precisely match them to resin systems, application processes, and replacement needs? This article systematically breaks down defoamer mechanisms and explores the critical “balancing act” through real-world scenarios.   I. Foundational Principle: How Defoamers Play the Role of “Foam Terminators” Foam is fundamentally a thermodynamically unstable system where gas is dispersed within a liquid. The presence of surfactants temporarily stabilizes this system. The role of defoamers is precisely to disrupt this stability. Penetration and Spreading: Defoamers possess extremely low surface tension, enabling them to rapidly penetrate the liquid film of bubbles and spread across its surface. Thinning the Film Layer: During this spreading process, they remove surfactants from localized areas of the liquid film, leading to uneven film thickness and reduced strength. Rupture and Coalescence: Weak points rupture first, causing adjacent bubbles to merge. Ultimately, large bubbles rise to the surface and escape or burst and disappear. An effective defoamer must simultaneously possess strong “foam suppression” (preventing new bubble formation) and “bubble rupture” (eliminating existing foam) capabilities. This depends on its degree of “incompatibility” with the system—requiring just the right level of incompatibility to disrupt foam, yet avoiding excessive incompatibility that could cause pinholes or cloudiness.   II. Three Dimensions of Selection: Resin, Process, and Special Requirements Discussing defoamers without considering specific applications is meaningless. Selection must be evaluated within a three-dimensional framework. Dimension One: Resin System—The Foundation for Compatibility Epoxy Resin Systems: Widely used in flooring, anti-corrosion, encapsulation, and other fields. These systems feature high viscosity and trapped air bubbles that are difficult to release, often requiring strong defoaming additives. For example, Anjikon 5630 and 5530 are specifically recommended for epoxy systems. They effectively prevent air entrapment during production and processing (including pultrusion), helping achieve dense coatings. Experiments also demonstrate that multiple defoamers achieve rapid defoaming within one minute in 828 epoxy. Acrylic and Polyurethane Systems: Commonly found in wood coatings, automotive refinish paints, and plastic coatings, these systems demand high transparency and recoatability. Silicone-free defoamers (e.g., Angikon 5053, 5300A) are preferred due to their minimal impact on interlayer adhesion. Internal testing shows that 5053 not only defoams rapidly in hydroxy acrylic systems but also exhibits excellent compatibility, maintaining clear transparency in both solutions and paint films. Alkyd and Polyester Systems: These systems offer a broader compatibility window. For instance, in alkyd systems, 5300A demonstrates outstanding defoaming speed and good transparency. In oil-based polyester inks, 5057 is often recommended for its balanced defoaming and recoatability performance.   Dimension Two: Application Process — Defining Performance Priorities Spray Application (especially airless spraying): Introduces significant mechanical bubbles, requiring defoamers with superior foam suppression and rapid bubble rupture capabilities. For mechanical bubbles in thick-film waterborne epoxy primers, 5062A has proven effective. Squeegee/Roller Application: Thicker film layers provide longer escape paths for bubbles, necessitating stronger defoaming power to help internal bubbles rise to the surface and rupture. For polyurethane sealants and thick-film epoxies, products like 5680A and 5530 are often recommended. Screen Printing/Flood Coating: High process shear forces readily generate microbubbles, and these applications are sensitive to leveling properties and surface defects. Here, additives that combine defoaming with leveling improvement (e.g., 5300A) may offer the convenience of “multiple functions in one agent.” High-Temperature Baking: Consider the thermal stability of defoamers to prevent “boil-out” pinholes caused by volatilization or decomposition during baking. 5300A is specifically noted for its boil-out prevention effect in baked coatings.   Dimension Three: Special Requirements—Defining Selection Boundaries Transparency Requirements: For clear coats, electronic adhesives, and high-end wood finishes. Products with exceptional compatibility must be selected to avoid haze or cloudiness. 5053 exemplifies superior transparency in acrylic systems. Regulatory & Safety: Food packaging inks, toy coatings, etc., require compliance with specific regulations (e.g., Swiss Ordinance). Angikon 5053 is confirmed free of aromatic hydrocarbons, while 5057 offers environmentally compliant solvent options or custom odorless formulations. Replacement Requirements: This represents a highly practical scenario. Anjikon maintains an extensive library of benchmark products. For instance: - 5680A can be tested as a replacement for Tego 900 and DC65 - 5141/5066N can be tested as a replacement for EFKA 2040 - 5053 can be tested as a replacement for Zhanxin PC-1244 However, it must be emphasized: Any replacement must undergo rigorous in-system testing and validation.   III. The Art of Balance: The Triad of Efficacy, Compatibility, and Cost Selecting a defoamer always involves finding the optimal balance among defoaming efficacy, system compatibility, and overall cost. Pursuing only strong defoaming power may introduce new issues like cratering or oil separation due to poor compatibility. Conversely, overly cautious selection of mild products for compatibility risks failing to resolve the foam problem. Angikon's product line is designed to offer options at different equilibrium points: from the highly defoaming epoxy-specific agent (5630) to the highly compatible acrylic-optimized agent (5053), and the multifunctional compound (5300A), enabling engineers to achieve precise matching for specific formulations.   IV. Practical Recommendations: Moving from Experience to Science in Selection Identify the pain points: Are production agitation bubbles, application mechanical bubbles, or residual microbubbles after curing the issue? Is it insufficient defoaming speed or inadequate long-term foam suppression? Initial product screening: Based on resin polarity, application process, and special requirements (e.g., silicone content, transparency), pre-select 2-3 products from the product library. System Testing: Always test within the complete formulation system. Evaluate how dosage affects key properties like defoaming efficiency, compatibility (clarity, pinholes), interlayer adhesion, and gloss. Remember: full defoamer efficacy requires 24-hour evaluation post-addition. Process Optimization: Prioritize addition during the grinding stage. If post-addition is necessary, ensure sufficient shear dispersion.   Bubble challenges vary from person to person. There is no “universal” defoamer—only the “most suitable” solution. With our extensive product portfolio and deep application data, Angikon is dedicated to providing precise defoaming solutions tailored to your specific system. If you're grappling with foam issues or seeking optimized alternatives to existing products, feel free to contact us anytime. Request complimentary samples and technical documentation—let us help you strike that critical balance and achieve a seamless transition from formulation to finished product.