EZHOU ANJEKA TECHNOLOGY CO.,Ltd

EZHOU ANJEKA TECHNOLOGY CO.,Ltd                                          professional additive manufaturer Experimental Record Form Experiment Name:  Viscosity Comparison of 6911A in Various Resin Systems & Silica Powder Temperature/Humidity:   Client:    / Applicant:Mr. Chen Experimental Date: March 23, 2026     objective: Color paste formula   Aluminum oxide,   boron nitride magnesium hydroxide         828 resin 30 22.85 30         solvent 15 36 15 Dimethyl: Butanol 4:1   dispersant 0.2 0.15 0.2         powder material 54.8 41 54.8         total 100 100 100         Experimental Method Stir at 2000 rpm for 15 minutes Test results alumina   6910A 6911A 26013002 26013003       Viscosity moa.s/8℃ 8299 553.3 4209 664       60 ℃ thermal storage for 1 day   6910A 6911A 26013002 26013003       Viscosity moa.s/10℃ 1992 774.3 2213 2435       Settlement situation Slight Soft Sedimentation Slight Soft Sedimentation Slight Soft Sedimentation Slight Soft Sedimentation         boron nitride   6910A 6911A 26013002 26013003       Viscosity moa.s/8℃ 8521 9738 6861 8299       60 ℃ thermal storage for 1 day   6910A 6911A 26013002 26013003       Viscosity moa.s/10℃ 10734 10070 8521 9849       Settlement situation no settlement Settlement 1/9   Settlement 1/7 Settlement 1/8         magnesium hydroxide   6910A 6911A 26013002 26013003       Viscosity moa.s/8℃ 110.7 774.6 332 553       60 ℃ thermal storage for 1 day   6910A 6911A 26013002 26013003       Viscosity moa.s/10℃ 553.3 553 110 664       Settlement situation Hard Settlement Hard Settlement Hard Settlement Hard Settlement       Conclusion For alumina systems, 6911A delivers the optimal viscosity reduction effect, exhibits the lowest viscosity after thermal storage, and ensures consistent anti-sedimentation performance across the board. In boron nitride systems, 6910A provides a moderate viscosity reduction effect while boasting the best overall stability of all tested additives. For magnesium hydroxide systems, 6910A achieves the most significant viscosity reduction; however, all tested formulations show poor anti-sedimentation performance after thermal storage.

EZHOU ANJEKA TECHNOLOGY CO.,Ltd                                                                       professional additives manufacturer Test Record Sheet Experiment Name: Anti-Sedimentation Test of Alcohol-Soluble Polyurethane Resin Pearl Paint Temperature/Humidity: 19/51 Customer: YunnanApplicant:  Ye Kai Experiment Date: March 15, 2026     Objective: To evaluate and select suitable additives for the customer's pearlescent paint system, using ethanol as the thinning solvent, such that the resulting mixture exhibits no visible stratification or settling within a 30-minute timeframe. Color paste formulation ① Alcohol soluble polyurethane resin 10 ② Alcohol soluble polyurethane resin 10 ③ Alcohol soluble polyurethane resin 10 ④ Alcohol soluble polyurethane resin 10 pearlescent powder 10 pearlescent powder 10 4330 polyethylene wax slurry 5 4320 polyamide wax slurry 2.5 Anjeka 6860 0.3 Anjeka 6881 0.3 pearlescent powder 10 pearlescent powder 10 isopropanol 10 isopropanol 10 isopropanol 10 isopropanol 10 ethanol 69.7 ethanol 69.7 ethanol 65 ethanol 67.5                                 Experimental Method 1. Formulation 1: Add 6860 dispersant and stir until homogeneous. 2. Formulation 2: Add 6881 dispersant and stir until homogeneous. 3. Formulation 3: First, mix 4330 with the resin and disperse at high speed until the fineness reaches

Selecting the right defoamer is a critical, yet often challenging, decision for formulators in the coatings, inks, and adhesives industries. The choice between silicone defoamers and non-silicone (polymer-based) defoamers can significantly impact not only foam control but also final film properties like adhesion, gloss, and recoatability. Making the wrong choice can lead to devastating defects such as crawling, cratering (fish eyes), and silicon contamination. This technical guide will demystify the key differences, advantages, limitations, and optimal application scenarios for each type, empowering you to make an informed selection for your specific system.   1. Understanding the Core Chemistry: How They Work Both types function by entering and destabilizing the foam lamella, but their base chemistry dictates their behavior. Silicone Defoamers (Organic Silicone Defoamers): Typically based on polydimethylsiloxane (PDMS) oils, often compounded with hydrophobic silica. They are highly surface-active and insoluble in most coating systems. Their low surface tension allows them to spread rapidly over the foam film, displacing the stabilizing surfactants and causing bubble collapse. They are renowned for their powerful, persistent defoaming and antifoaming action, especially against microfoam. Non-Silicone Defoamers (Polymer Defoamers): These are usually based on hydrophobic polymers, mineral oils, or polyethers. They work primarily by a mechanism of “bridging” the foam film or by entering the lamella and promoting drainage. They are generally designed for better compatibility within the host system, minimizing the risk of surface defects associated with low surface tension materials. 2. The Great Trade-off: Efficacy vs. Compatibility The selection often revolves around balancing raw defoaming power with the risk of side effects. When Silicone Defoamers Excel (And Their Risks): Pros: Superior defoaming efficiency, especially in high-viscosity systems, water-based coatings, and emulsions. Excellent long-term foam inhibition. Effective at low dosage. Cons: High risk of causing surface defects like craters or crawling due to extreme surface tension reduction. Can lead to poor intercoat adhesion (recoatability). May cause water spotting or affect gloss uniformity. Compatibility must be rigorously tested. When Non-Silicone Defoamers Are the Safer Choice (And Their Limits): Pros: Generally offer much higher system compatibility. Drastically lower risk of inducing crawling or cratering. Usually do not interfere with adhesion or recoatability. Ideal for clear coats and systems where surface perfection is paramount. Cons: Defoaming strength, particularly against persistent microfoam, can be lower than silicone types. May require higher addition levels. Performance can be more system-specific. 3. Application-Based Selection Guidelines Here’s a practical framework to guide your choice based on your formulation and process: Choose a Silicone Defoamer If Your Priority Is: Maximum Defoaming Power: In thick paste adhesives, sealants, high-solids coatings, or textured paints where foam is severe. Aqueous Systems: Many general-purpose waterborne industrial coatings and architectural paints where the risk of silicone-related defects is manageable. Process Foam: Controlling foam in mixing tanks, during pumping, or filling operations. Opt for a Non-Silicone Defoamer If Your Priority Is: Surface Perfection: In automotive topcoats, high-gloss industrial finishes, wood coatings, or any application where craters are unacceptable. Critical Adhesion/Recoatability: In can coatings, coil coatings, plastic substrates, or multi-layer systems where intercoat adhesion is vital. Specific Chemistries: In epoxy systems, UV-curable formulations, and some polyurethane systems, where silicone compatibility is notoriously problematic. (At Anjeka, for instance, we often recommend a non-silicone defoamer like Anjeka 5530 for epoxy systems to ensure flawless results). Predictable Compatibility: When formulating a new system and you need a “safer” first option to minimize defect risks during development. 4. Beyond the Binary: Advanced Considerations and Synergies The choice isn't always either/or. Advanced formulating involves deeper nuances: Modified Silicones: Some defoamers use modified silicone polymers that offer a middle ground—better compatibility than traditional PDMS while retaining strong defoaming characteristics. Synergy with Other Additives: Often, the root cause of surface defects is a combination of foam and poor wetting. An effective strategy is to combine a carefully selected defoamer (silicone or non-silicone) with a powerful wetting and leveling agent. For example, using a wetting agent like Anjeka 7411 can compensate for surface tension gradients and work synergistically with the defoamer to achieve a perfectly flat, defect-free film. Testing is Non-Negotiable: Regardless of the guideline, compatibility testing is essential. Evaluate not only initial foam knockdown but also long-term stability, film clarity, gloss, and adhesion after full cure. 5. Anjeka’s Perspective: Providing the Right Tool for the Job At Anjeka, we believe in providing a comprehensive toolbox. We offer a full spectrum of both high-performance silicone defoamers (e.g., Anjeka 5680A for powerful action) and specialized non-silicone defoamers (e.g., Anjeka 5530 for epoxy, Anjeka 5053 for PU/Acrylic). Our technical data, including results on viscosity stability and thermal storage tests, helps customers validate performance in their specific applications. Our goal is not to sell one type over the other, but to partner with you to select the most effective and safe defoaming solution that aligns with your formulation goals, process conditions, and end-product requirements.

On the path to pursuing high-performance coatings and composites, formulation engineers often battle a series of "stability" issues: Why do meticulously formulated colors consistently fall short of the desired gloss and saturation? High system viscosity severely impacts application efficiency and final leveling. In complex multi-component resin systems, phase separation acts like a ticking time bomb, threatening product uniformity and reliability. In high-end carbon fiber composites, fiber wetting directly determines the strength and quality of the final product. These seemingly independent pain points collectively point to the core need for precise control over the interactions between components within a system. Today, we focus on a wetting and dispersing agent that can multi-dimensionally enhance system stability – Anjeka Anjeka-6976, and see how it becomes the "all-around stabilizer" in formulations.   I. The Guardian of Color's Soul: Ending Pigment Flocculation, Unleashing Ultimate Performance Pigment flocculation is the root cause of defects such as floating/flooding, reduced gloss, insufficient tinting strength, and uneven color in paint films. Anjeka-6976 effectively deflocculates and stabilizes pigment particles through a unique steric hindrance stabilization mechanism. It not only breaks down pigment agglomerates, resulting in finer particle size distribution for higher gloss and enhanced color strength, but also simultaneously improves the transparency of transparent pigments and the hiding power of opaque pigments. More importantly, it imparts the same charge to the surfaces of different pigments. The resulting electrostatic repulsion, combined with steric hindrance, effectively prevents co-flocculation when multiple pigments are blended, ensuring pure color appearance without floating/flooding in complex pigment systems.This means that whether pursuing deep blackness in automotive coatings or vibrant saturation in industrial coatings, Anjeka-6976 can help you stably present the color soul required by the design.   II. The Efficient Engine of Flowability: Solving the High Viscosity Dilemma, Enhancing Processing Efficiency High viscosity not only increases energy consumption and reduces production efficiency but also affects spray atomization, leveling, and final film thickness consistency. Anjeka-6976 demonstrates outstanding viscosity reduction capability. In coatings and adhesive systems, it significantly reduces grinding paste viscosity, improves flow properties, and allows you to increase pigment content in color pastes, thereby enhancing formulation solids or economic benefits. In the production of thermoplastic plastic masterbatches, its viscosity reduction effect is equally significant, imparting more ideal Newtonian flow characteristics to the grinding paste, helping to improve processing torque, increase output efficiency, optimize melt flow rate (MVR), and enhance dispersion quality. Choosing Anjeka-6976 is equivalent to installing a "flowability engine" for your production process, making material handling smoother and the processing window wider.   III. The Stabilizing Pillar of System Uniformity: Preventing Phase Separation, Ensuring Long-Term Stability In composite material systems like unsaturated polyesters, phase separation can occur between resins and additives or different polymers due to compatibility issues, leading to product stratification, inconsistent performance, or even failure. Anjeka-6976 plays the role of a "compatibility promoter" and "stabilizer" in this field. It effectively prevents phase separation of different thermoplastic plastics in various unsaturated polyesters, particularly suitable for low-VOC formulations with strict requirements. By adding a small amount of Anjeka-6976 (0.3-1% based on resin amount), the uniformity and storage stability of complex resin systems can be greatly enhanced, laying a solid foundation for reliable processing in SMC/BMC and other processes and the consistency of final product performance.   IV. The Strength Foundation of Composites: Optimizing Carbon Fiber Wetting, Empowering High-End Manufacturing Whether the excellent performance of carbon fibers can be fully realized in composites largely depends on the degree of wetting and encapsulation by the resin matrix. Poor wetting leads to weak interfacial bonding, becoming stress concentration points and affecting the mechanical properties of the product. Anjeka-6976 is recommended for improving carbon fiber wetting. In processes such as SMC (Sheet Molding Compound) and pultrusion, adding Anjeka-6976 at 0.5-1% based on fiber content can promote rapid and thorough resin impregnation of carbon fiber bundles, reducing interfacial defects, thereby enhancing processing reliability and ultimately obtaining composite products with higher strength and superior performance.   From imparting stunning color and gloss to coatings to ensuring the robust and reliable structure of composites, stability is the golden rule throughout. Anjeka Anjeka-6976 wetting and dispersing agent, with its unique "multifunctional" advantage, provides you with a comprehensive stability solution spanning the coating and composite material fields.   If you are currently facing: Poor pigment dispersion, insufficient gloss, color floating/flooding? Excessively high system viscosity, affecting application and production efficiency? Complex resin formulations, concerned about phase separation during storage or use? Difficulty in wetting carbon fiber composites, needing improved interfacial strength?   The Anjeka technical team is always ready to support you: Obtain Detailed Technical Information: Gain an in-depth understanding of the product characteristics and application guidelines of Anjeka-6976. Apply for Free Samples: Conduct verification tests for your specific system and personally experience its stabilizing effects. Technical Consultation and Formulation Optimization: Our application engineers can provide one-on-one technical support to assist in solving complex stability challenges.

In the field of industrial coatings,alkyd resins are widely used due to their good overall performance. However, formulation engineers often face challenges: carbon black color pastes re-coarsen and settle after storage, high-filler paste viscosities remain stubbornly high, and finished paints experience layering and floating during storage. The core of these problems often points to a key additive - the dispersant. Choosing a dispersant that is highly compatible with the alkyd resin system is the first step in improving product stability and optimizing production processes.   I. Dispersion Challenges in Alkyd Resin Systems: More Than Just "Mixing" As a classic coating film-forming agent, the polarity, acid value, and solvent type of alkyd resins together create a unique dispersion environment. In this environment, the stable dispersion of pigment and filler particles faces multiple tests: High Viscosity and Processability: Especially when preparing high-solid-content filler pastes like silica micro-powder or barium sulfate, the initial viscosity is extremely high, making dispersion difficult and affecting production efficiency. Storage Stability: Color pastes or finished paints are prone to pigment/filler sedimentation and re-coarsening during storage, especially after experiencing temperature changes, leading to product scrapping. Color Stability: For colored paints, especially dark paints, floating and flooding phenomena affect the appearance uniformity of the final coating film. These challenges mean that a dispersant must not only provide good wetting and dispersion during the grinding stage but also provide long-term stability throughout the product's lifecycle.   II. Precise Matching: Different Materials, Different Dispersion Strategies Based on extensive internal experimental data from Anjeka, the selection of dispersants in alkyd resin systems needs to be "tailored to the material" 1. For Carbon Black and Other Organic Pigments When dispersing medium-color carbon black (C311) in alkyd resin (e.g., Sanmu 3880), experiments show that Anjeka 6173, 6161A, and 6040 perform excellently. They enable the color paste to easily achieve an initial fineness of ≤10μm with good fluidity. More importantly, after the severe test of 60°C storage for 7 days, the paste showed no sedimentation, and the fineness remained ≤10μm, demonstrating outstanding long-term stability . 2. For High-Fill Inorganic Fillers like Silica Micro-powder and Barium Sulfate This is the ultimate test of a dispersant's viscosity reduction and anti-settling capabilities. Experimental data provides clear guidance:   Silica Micro-powder Paste: In the alkyd resin 3355 system, Anjeka 6500-50 and 6111 showed the best viscosity reduction effect both initially and after 50°C storage for 48 hours (e.g., initial viscosity as low as around 2666 mPa.s). Barium Sulfate Paste: In the same alkyd resin system, Anjeka 0301 showed the most outstanding viscosity reduction and anti-settling effect, with its initial and post-storage viscosity significantly lower than other tested products. Core Insight: The mechanisms and requirements for dispersing carbon black and inorganic fillers are different, so the recommended product models also differ. A universal dispersant may not achieve optimal results in all scenarios.   III. Beyond Initial Dispersion: Focusing on Thermal Storage Stability and Comprehensive Performance The value of an excellent dispersant is reflected throughout the product's shelf life. Anjeka's tests not only focus on initial viscosity but also set the stringent condition of 50°C storage for 48 hours, simulating long-term storage or summer high-temperature environments. Experimental conclusions indicate that in the above alkyd resin filler paste tests, some Anjeka dispersants (such as 6500-50, 6111, 0301) still maintained excellent viscosity reduction and anti-settling capabilities after thermal storage. This means that pastes or coatings prepared with these dispersants can better resist changes caused by time and temperature, reducing customer complaints and enhancing brand reputation. Furthermore, for colored paints requiring full, uniform color, Anjeka 6161A, 6104s and other models have been verified to improve floating and flooding problems in alkyd and epoxy systems, ensuring consistent final coating film color.   IV. Recommendations for Selecting Anjeka Dispersants in Alkyd Systems Identify the Dispersion Target: First, determine the main type of pigment or filler to be dispersed (carbon black, inorganic pigment, silica micro-powder, barium sulfate, etc.). Refer to Experimental Data: Conduct preliminary selection based on the above experimental conclusions. For example, for dispersing silica micro-powder, try 6500-50 or 6111 first; for barium sulfate, consider 0301; for carbon black color pastes, select from 6173, 6161A, and 6040. Conduct Small-scale Verification: Due to differences between alkyd resins from different manufacturers and different models, it is recommended to conduct small-scale experiments in the customer's own resin system after determining the preliminary model to verify fineness, fluidity, storage stability, and color phase. Optimize Addition Method: Note that 100% solid content dispersants require appropriate adjustment of the addition amount, and ensure thorough mixing with the resin and solvent during the formulation stage before adding the powder to achieve the best dispersion effect. Optimizing dispersion in alkyd resin systems is a key step in enhancing product competitiveness and stability. Anjeka possesses a matrix of dispersant products rigorously tested for different materials and has accumulated rich application data. If you are looking for solutions to dispersion problems in alkyd systems, or wish to obtain more precise model recommendations and technical support, please feel free to contact us at any time. Obtain free samples or detailed technical information, and let Anjeka help you overcome dispersion challenges and build a more stable and efficient product system.  

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.