EZHOU ANJEKA TECHNOLOGY CO.,Ltd

Ezhou Anjeka Technology Company Ltd. Professional Additives Manufacturer Experiment Record Sheet Experiment Name  Urea Color Chip / Urea Pigment Paste Temperature / Humidity  20°C / 77% Customer   Applicant： Mr. Zhang Experiment Date April 2, 2026     Objective: The customer requires a waterborne resin-free pigment paste (no co-solvent). Pigments submitted: green and organic yellow. Pigment content: 25–30%. Hot storage at 55°C for 7 days with no significant change. No specific fineness requirement. High viscosity acceptable (paste form is also acceptable). Heat urea to 120–123°C until melted, add 0.03% pigment paste, mix well, pour onto a clean floor, and allow to naturally solidify. After drying, observe whether the urea color chip is uniform, with no color spots required.   Phthalocyanine Blue,Organic Deep Yellow         Water 50             Urea 10             Pigment 30             Dispersant 6272 6270A 6871 6070                       Test Method: Heat 100 g of urea to 120–123°C until melted. Add 0.03% pigment paste, stir evenly, pour onto a clean floor. After cooling and solidification, observe whether the color is uniform and free of color spots.     Test Results: Experiment Conclusion: The pigment paste ground with dispersant 6070, when added to urea, shows uniform color and no color spots, and can meet the customer's requirements.

Ezhou Anjeka Technology Co., Ltd. Professional Additives Manufacturer Experiment Record Sheet Test Name Pearlescent Pigment Test for Aerosol Spray Paint Temperature / Humidity 14/87 Client   Applicant Mr. Feng Test Date： 26.4.8     Objective: The customer requires the pearlescent paint to be thinned to spray viscosity, and to resolve the issues of pearlescent pigment settling and orientation during spraying. Two resin samples from the customer were used, with xylene as the test solvent. Test Formulations ①#522 Pearlescent Pigment 8 ②#522Pearlescent Pigment 8 ③#522Pearlescent Pigment 8 ④#522Pearlescent Pigment 8 Xylene 8 Xylene 8 Xylene 8 Xylene 8 6110 0.6 6110 0.6 6110 0.6 6110 0.6 MD-50 Resin 30 4054 Resin 30 MD-50 Resin 30 4054 Resin 30 4340A 10 4340A 10 4330 10 4330 10 30%4320-20 3 30% 4320-20 3 30% 4320-20 3 30%4320-20 3 7331 0.05 7331 0.05 7331 0.05 7331 0.05 Xylene 40.35 Xylene 40.35 Xylene 40.35 Xylene 40.35   100   100   100   100 30% 4320-20               Resin 70             4320-20 30               100             Test Method: Step 1: Add items 7–9 (pearlescent pigment, solvent, and dispersant 6110) and stir at 500 rpm until no obvious large particles remain. Step 2: Disperse items 10–14 at 800–1200 rpm (high-speed dispersion) until fineness < 15 μm. Then add the dispersed mixture into the pre-dissolved pearlescent pigment slurry, and mix at 500 rpm (low speed) until uniform. Do not exceed 500 rpm, as excessive speed may damage the pearlescent pigment platelet structure. Then proceed to comparative testing. Step 3: For the 30% 4320-20 anti-settling wax paste: pre-mix it with resin, then disperse at 800–1200 rpm for 8–15 minutes until fineness < 15 μm. This wax paste can be prepared in advance. Test Results: Working paint viscosity: 16–17 seconds (Ford cup / applicable standard)   Before Storage     After 5 Days at Ambient Temperature                         After 5 Days at 55°C (Hot Storage)           Observation: No separation after 5 days at ambient temperature. Slight soft sedimentation after 5 days at 55°C (hot storage). These four options can be recommended to the customer. Pearlescent pigment orientation after spray application is acceptable.

In the world of composites, where extreme lightweighting and high performance are pursued, a barely visible "tiny bubble" can become the Achilles' heel of a product's performance. Whether it's hidden porosity inside a wind turbine blade or annoying pinholes on the surface of an automotive part, bubbles not only affect appearance but can severely compromise mechanical strength and durability. How to achieve "bubble-free" or "low-bubble" molding within high-viscosity resins, complex fillers, and demanding processes is a challenge every composite engineer must overcome.   I. Why Do Composites "Love" to Foam? – The Dual Challenge of Process and Material Composite manufacturing essentially involves physically mixing and chemically curing resins, fibers, fillers, etc., into a single entity. During this process, bubbles are almost omnipresent: Mechanical Introduction: High-speed mixing, filler addition, and incomplete vacuum infusion can all entrap air into the high-viscosity resin system. Chemical Reaction Generation: Certain curing reactions may produce gaseous by-products, which, if not released in time, form micro-bubbles. Surface Tension "Traps" Bubbles: The resin's own high viscosity and high surface tension make it difficult for entrained bubbles to naturally rise, merge, and rupture, forming a stable micro-bubble system. If these bubbles remain in the final product, they become stress concentration points, leading to premature failure under load or directly affecting the smoothness and protective properties of coatings. II. The "Methodology" of Defoaming: Not Just "Breaking," But Also "Preventing" Solving bubble problems in composites requires systematic thinking, not just remedial action at a single stage. An effective defoaming solution should address both: Rapid Bubble Breaking: Quickly reduce local surface tension during initial stages where many bubbles are generated (e.g., mixing), destroying the bubble film, causing them to merge, grow, and escape. Persistent Foam Suppression: Continuously inhibit the generation and stabilization of new bubbles during subsequent prolonged processes like resin impregnation of fibers and flow filling of molds, preventing secondary foaming. Compatibility and Stability: The defoamer itself must not react adversely with the system, causing craters, floating, or affecting resin curing and final performance. This is particularly important for transparent and light-colored products. This requires the defoamer to not only have efficient surface activity but also a delicate balance of compatibility with the complex composite system. III. Anjeka Solution: An Efficient Defoaming Partner Tailored for Composites Addressing the characteristics and process pain points of composite resin systems (such as epoxy, unsaturated polyester, vinyl ester), the Anjekang defoamer series aims to provide balanced solutions: For High Viscosity and Foam-Stable Systems: Its design can effectively penetrate and disrupt the foam-stable structure wrapped by the resin, promoting the merging and removal of fine bubbles, suitable for processes like hand lay-up and vacuum infusion. Focus on Broad Process Adaptability: Maintains defoaming and foam-suppressing efficacy under different shear and temperature conditions from initial resin mixing to mid-stage mold filling, compatible with various molding methods like hand lay-up, spray-up, pultrusion, and compression molding. Emphasis on System Compatibility: Through careful raw material selection and optimized formulation, it aims to minimize potential impact on product surface appearance (e.g., clarity of transparent FRP, gloss of gel coat) and physical properties. Engineers can select suitable models and conduct small-scale verification based on specific resin type, filler种类, process conditions, and transparency requirements, using the defoamer as a "key" to optimize processes and improve yield. IV. Application Implementation Suggestions: How to Use Defoamers Effectively? Diagnose First, Then Treat: Identifying whether the main source of bubbles is mechanical mixing, filler introduction, or reaction generation helps determine the optimal timing for defoamer addition (e.g., during initial mixing or before filler addition). Small-Scale Testing is Key: Before mass production,must conduct laboratory-scale tests to evaluate defoaming efficiency, compatibility, and effects on curing speed, final appearance, and performance. Follow Recommended Addition Methods: Ensure the defoamer is evenly dispersed in the system to avoid local overdosing. It is generally recommended to add it during the resin mixing stage with sufficient dispersion time. Systematic Coordination with Process: Defoamers are important auxiliary tools, but they must be combined with reasonable process parameters like vacuum degassing and appropriate curing procedures to achieve the best results.   Though small, bubbles are crucial to success. Choosing a defoamer that matches your system and has lasting efficacy is a vital step towards high-quality composite manufacturing. Anjeka offers defoaming solutions for different composite systems and processes, supported by customized technical services. Take action now to obtain free samples or technical information, and let us help you overcome defoaming challenges to create excellent products with "consistent quality"!

Optimizing Hot Melt Adhesives: Achieving Low Viscosity and Bubble-Free Performance In the production and application of hot melt adhesives, engineers often face a dilemma: to facilitate coating or spraying, they desire the adhesive to have as low a viscosity as possible. However, reducing viscosity can lead to difficulties in eliminating bubbles, poor leveling of the adhesive film, and surface defects like craters or orange peel. This is not merely an adjustment of process parameters but, more fundamentally, the scientific combination of "leveling and viscosity-reducing" additive systems within the formulation. Today, let's discuss how to select the right additives to endow hot melt adhesives with both the "easy application" physique and the "good appearance" aesthetics.   I. The "Flow" Code of Hot Melt Adhesives: Beyond Viscosity The flowability of a hot melt adhesive is a manifestation of its comprehensive properties. It depends not only on the molecular weight and temperature of the base resin but is also profoundly influenced by fillers, pigments, and various additives. Excessive viscosity leads to difficult application and increased energy consumption. Conversely, simply reducing viscosity without considering leveling and defoaming can result in a film riddled with surface defects, affecting the final bonding effect and appearance. Therefore, the ideal additive should be a "versatile player": it must effectively reduce system viscosity, promote the spreading and leveling of the adhesive on the substrate, and simultaneously help remove bubbles introduced during mixing or application.   II. Solving the Dilemma: Targeted Additive Selection Strategy To address the dual needs of "low viscosity and no bubbles," we need to approach it step by step from the overall formulation perspective: Core Viscosity Reduction and Stability: For systems containing inorganic fillers (such as titanium dioxide, heavy calcium carbonate, etc.), an efficient wetting and dispersing agent is crucial. It can coat filler particles, reduce internal friction between particles, thereby significantly lowering system viscosity and preventing sedimentation and re-coarsening during storage. For example, Anjeka 6402A has demonstrated excellent viscosity reduction and storage stability in similar polyol filler systems . Key Leveling and Spreading: After viscosity is reduced, obtaining a flat, uniform adhesive film requires a leveling agent to lower the surface tension of the adhesive, promoting better substrate wetting and leveling. For oily acrylic systems, non-silicone leveling agents like 7377A, due to their good compatibility, are often used in applications with high requirements for coating appearance . Agents like 7410 find application in improving flow and promoting the arrangement of flaky materials . Synergistic Defoaming and Deaeration: Bubbles are inevitably entrained during high-speed mixing or coating. This requires specialized defoamers to work synergistically with the leveling system. For solvent-based or solvent-free systems, 5088, as a solvent-based defoamer, can be a potential option for addressing bubble issues . It needs to quickly break bubbles and inhibit foam regeneration, ensuring a dense, defect-free adhesive film. III. Anjeka Solution: Customizing "Flow Aesthetics" for Hot Melt Adhesives Anjeka, deeply engaged in the field of specialty chemicals, has a profound understanding of the complex needs of the adhesive industry. We provide not just individual additives but targeted solutions: For systems pursuing extreme viscosity reduction and storage stability, the application potential of 6402A can be evaluated. For oily systems requiring excellent leveling, high-temperature resistance, or special compatibility, products like 7377A and 7410 offer diverse choices. For scenarios needing to solve bubble problems in solvent-based or solvent-free systems, defoamers like 5088 are available for assessment. Faced with complex comprehensive requirements, our technical team can assist you with additive compounding and screening. For instance, combining the leveling agent 7377A with the defoamer 5088 may achieve a synergistic effect where "1+1 > 2." It is important to note that each additive has its most suitable stage. Therefore, the most reliable approach is to conduct small-scale experiments based on your specific resin system, filler type, and process conditions to find that exclusive "key."   IV. Action Recommendations: From Lab to Production Define Indicators: First, clarify your specific targets for viscosity, leveling grade, defoaming speed, and storage stability. Sample Screening: At the laboratory stage, conduct gradient addition experiments on candidate additives (e.g., 6402A, 7377A, 7410, and corresponding defoamers like 5088) to evaluate their viscosity reduction effect, leveling state, and defoaming capability. Process Verification: Simulate actual production processes (such as mixing speed, temperature, coating method) with the initially selected formulation to observe if new issues arise. Stability Testing: Perform thermal storage stability tests to ensure the additives do not fail or produce side effects after long-term storage. The "flow" of hot melt adhesives is an art of balance. If you are seeking better solutions for viscosity, bubbles, leveling, and other issues, Anjeka is willing to lend a hand with our professional products and technical experience. Contact us now to obtain additive samples for your system and preliminary technical advice. Let's work together to create hot melt adhesive products that are easier to apply, more aesthetically pleasing, and more stable in performance!  

In the world of coatings and adhesives, the stability of powders and pigments directly determines the final product quality and application experience. Whether it's the dazzling metallic effect of aluminum powder in automotive paint, the full-bodied coating effect of furniture paint, or the uniform bonding performance of adhesives, none can be achieved without a key "unsung hero" – wax paste additives. They are not the main characters, but through precise anti-settling, rheology control, and effect pigment orientation, they silently safeguard the stability of the formulation and the perfect presentation of performance. This article will take you deep into the core functions of wax paste additives and outline Anjeka's solutions for different application scenarios.   I. Wax Paste Additives: The "Versatile Player" Beyond Anti-Settling Wax paste is a stable paste formed by dispersing special waxes (such as polyethylene wax, polyamide wax, EVA wax, etc.) in solvents or water. The most well-known function of adding wax paste to a formulation is preventing the settling of pigments and fillers, ensuring good in-can appearance and consistent performance between batches. However, its role extends far beyond this: Rheology Adjustment: By forming a three-dimensional network structure, it provides shear-thinning rheological properties. This not only prevents settling during storage but also ensures good leveling during application and effectively resists sagging, making it particularly suitable for vertical surface application. Effect Pigment Orientation: For flaky effect pigments like aluminum powder and pearlescent pigments, specific wax pastes (such as EVA wax paste) can promote their parallel arrangement within the paint film. This significantly enhances the metallic flash effect and flip-flop (goniochromatic) effect, avoiding defects like mottling or dark spots caused by chaotic arrangement12. Performance Enhancement: Some wax pastes can also improve the coating's feel, wear resistance, scratch resistance, and have minimal impact on gloss.   II. Finding the Right Match: How to Choose the Appropriate Wax Paste for Your System? Selecting a wax paste requires comprehensive consideration of the system type (solvent-based/water-based), primary functional needs (anti-settling, orientation, thixotropy), and the specific application scenario. Solvent-Based Systems – The Expert in Effect Pigment Orientation: Core Need: To achieve perfect orientation and stability for aluminum powder and pearlescent pigments in automotive refinish paints and high-end industrial coatings. Recommended Solution: Anjeka-4340/4340A (EVA Wax Paste). Specifically designed for solvent-based metallic paints, it can effectively enhance the orientation effect of metallic pigments, strengthen the flip-flop effect, and simultaneously reduce in-can settling. Water-Based Systems – The Stable Guardian Under the Environmental Trend: Core Need: To solve anti-settling and achieve a degree of orientation for aluminum powder and pearlescent pigments in water-based furniture paints and industrial coatings. Recommended Solution: (Note: The provided materials focus on Anjeka-4340/4340A. Information on water-based solutions like Anjeka-4561, 4420, 4350 would require separate product data sheets for accurate description.) Adhesives and High-Build Systems – Powerful Thixotropy and Anti-Settling: Core Need: In systems like epoxy floor coatings, sealants, and structural adhesives, powerful thixotropy is needed to prevent sagging, control flow, and ensure fillers do not settle. Recommended Solution: (Note: The provided materials focus on Anjeka-4340/4340A. Information on solutions for adhesives like Anjeka-4410, 4610, 4310-20X would require separate product data sheets for accurate description.)   III. Highlights and Precautions for Using Anjeka Wax Paste Additives Precise Matching: The product line covers various wax types like EVA, polyamide, and polyethylene, as well as different media (solvent-based/water-based), meeting diverse needs from high-end automotive paints to general industrial coatings and adhesives. Ease of Use: Most products are pre-dispersed pastes or liquids, facilitating direct addition. Key Usage Tips: Pre-treatment: For wax pastes (e.g., 4340), it is essential to high-speed stir for 15-30 minutes before use until a uniformly flowing liquid is achieved, and then filter it to ensure optimal results and avoid particle issues. Storage Conditions: Store in a cool, well-ventilated place, sealed, and away from heat sources. Low temperatures may cause increased viscosity or separation; restore to room temperature and stir well before use. Dosage Optimization: The recommended dosage is a starting reference point (e.g., 5-15% of the total formulation). The optimal amount must be determined through experiments tailored to your specific formula. Wax paste additives may be small, but they are a key link in enhancing product stability, application properties, and final appearance. Choosing the right wax paste can make your formulation twice as effective. If you are looking for solutions to coating problems like settling, sagging, or poor metallic effects, Anjeka's professional technical team is ready to support you: Obtain Samples and Information: Contact us to receive wax paste additive samples matched to your system and detailed technical data sheets. Technical Consultation: Our application engineers can provide you with targeted product recommendations, dosage advice, and problem diagnosis.

In the lifecycle of "steel giants" such as bridges, storage tanks, and ships, anti-corrosion coatings serve as the first and most critical line of defense. However, issues such as blistering, peeling, and premature rusting often stem not from the resins or pigments themselves, but from the failure or incompatibility of the "invisible guardians" in the formulation — the additives. How can we ensure that the protective performance of anti-corrosion paints remains stable and reliable, staying "online" throughout the entire journey from in-can storage to final in-service application? This has become a core challenge for formulation engineers. I. Industry Transformation: The "Dual Challenge" of Anti-Corrosion Paints and the New Role of Additives The anti-corrosion paint industry is currently under the dual pressure of performance upgrading and green transformation. On one hand, there is a growing demand for ultra-long-term protection (e.g., 25+ years) for infrastructure. On the other hand, environmental regulations, such as China's "Technical Requirements for Low VOC Content Coating Products," are strongly driving the adoption of eco-friendly systems such as water-based and high-solid coatings. Against this backdrop, additives have evolved from a traditional "cosmetic" role into critical functional components that determine formulation success or failure. They must not only address surface issues such as bubbles and leveling but also ensure long-term compatibility with the entire formulation under harsh conditions — without failing due to temperature fluctuations, prolonged storage, or complex application requirements. This is the logical starting point for achieving long-lasting protection. II. Deep Dive into Pain Points: How Additives Are Linked to Common Defects in Anti-Corrosion Coatings Many coating failure cases can be traced back to additive-related issues: Storage-induced coarsening and settling: Insufficient dispersant stability or incompatibility leads to re-flocculation and settling of pigments and fillers, compromising hiding power and protective uniformity. Application bubbles and cratering: Inefficient or incompatible defoamers fail to eliminate air entrapped during thick or multi-layer spraying, or fail to resist craters caused by surface contamination. Sagging and uneven film build: On vertical surfaces, rheology additives fail to provide adequate thixotropy, causing paint to run and form uneven film thickness — creating weak spots in protection. Floating and flooding: In multi-color systems, wetting and dispersing agents fail to balance the surface energy of different pigments, leading to color inconsistency and affecting both aesthetics and certain functional properties. If these issues are already latent in the formulation before application, they become hidden risks for the coating's long-term service life. III. Anjeka Solutions: "Systematic" Additive Support for Long-Lasting Anti-Corrosion Performance Based on a deep understanding of resin chemistry and interfacial science, Anjeka Technology has developed targeted additive solutions for anti-corrosion coatings, centered on "long-term compatibility" and "precision prevention." For epoxy, polyurethane, acrylic, and other systems: We offer specialized wetting and dispersing agents  designed to improve pigment/filler dispersion efficiency and storage stability, helping to build a denser, more barrier-effective film. For complex application environments: Our defoamers are engineered to address the foam-stabilizing tendencies of thick-film applications in both water-based and solvent-based systems, aiming for rapid air release and long-lasting defoaming performance while minimizing internal coating defects. For application and appearance optimization: Through the synergy of leveling agents and thixotropic anti-settling agents, we help formulations achieve good application tolerance and excellent film smoothness, while preventing sedimentation during storage. Our product development philosophy is to make additives stable and reliable components of the formulation — not potential sources of uncertainty. IV. Practical Recommendations: How to Select and Validate Additives for Your Anti-Corrosion Paint Formulation Define your system and requirements: First, determine whether your system is water-based or solvent-based, identify the main resin type, and prioritize the most critical pain point (storage stability, defoaming, or sag resistance). Add and evaluate in stages: Follow the recommended addition procedures. Evaluation should not be based solely on initial performance. Thermal storage (e.g., 50°C / 7 days) and freeze-thaw cycle tests are essential to observe whether the additive remains effective and free from precipitation. Simulate application conditions: In the laboratory, simulate actual application methods (spraying, brushing, etc.) and conditions (film thickness, humidity) to test leveling, defoaming, and sag resistance. Validate performance correlations: Conduct key performance tests on the final film (e.g., adhesion, salt spray resistance) to confirm that the additive has no negative impact on — or even contributes positively to — the core protective properties. In long-lasting anti-corrosion, success lies in the details. Anjeka is committed to being a reliable partner in your formulation development, offering targeted additive solutions and professional technical support. To request additive samples, technical data sheets, or formulation consultation tailored to your specific anti-corrosion paint system (water-based/solvent-based/epoxy/polyurethane, etc.), please feel free to contact us. Let us work together to create coatings with more stable performance and longer-lasting protection.

Beyond Settling Prevention: The All-round Assistant for Metallic Paints Balancing Pigment Orientation and Sag Resistance.   In the industrial coating field that pursues excellent appearance and protective performance, metallic paints (aluminum powder paints, pearlescent paints) always occupy a place in the high-end market due to their unique sparkling effects and metallic texture. However, formulation engineers often face a thorny challenge: how to keep these "delicate" metallic pigments stably suspended during storage, avoiding hard settling that is difficult to stir upon opening or soft settling that affects application? This concerns not only the product's in-can appearance and application experience but also directly affects the final appearance uniformity and performance of the coating. Anjeka Technology, deeply engaged in the field of coating additives, provides professional anti-settling solutions from solvent-based to waterborne systems tailored to the characteristics of metallic pigments, helping you easily resolve settling problems.   I. Metallic Pigment Anti-settling: Why is it a "Technical Skill"? Metallic pigments, such as aluminum powder and pearlescent powder, with their flake structure, are prone to settle in paint systems due to density differences, changes in solvent polarity, or insufficient resin encapsulation. Traditional anti-settling agents like fumed silica and bentonite, while having some effect, may bring issues such as significant thickening, affecting leveling and gloss, or poor compatibility with the system. Especially for aluminum powder paints, an overly strong thixotropic structure may also disrupt the orientation of aluminum flakes, leading to uneven sparkling effects. Therefore, choosing an anti-settling agent that can effectively suspend pigments while having minimal impact on system viscosity, gloss, and application properties is key.   II. The "Anti-settling Tool" for Solvent-based Systems: Convenient Post-addition and Excellent Compatibility For mainstream solvent-based baking paints, automotive refinish paints, industrial paints, etc., Anjeka offers several market-proven anti-settling agent options. Anjeka-4330: A dispersed polyethylene wax paste. Its greatest advantage is that it does not require grinding and can be directly post-added, making it particularly suitable for anti-settling modification of already prepared aluminum paste or pearlescent pigment paints. It is a flowable paste, very convenient for dispensing and dispersion, providing excellent anti-settling effects with minimal impact on system viscosity. Even if slight settling occurs, it is easily stirred and will not form hard lumps at the bottom of the can, ensuring long-term storage stability and good in-can appearance of the product. Anjeka-4410: Performs excellently in anti-settling for pearlescent and aluminum powders, while also possessing outstanding anti-sag properties67. It has little effect on the leveling and gloss of the coating film, making it a preferred choice for many high-end metallic paint formulations. Additionally, it can be used as a synergist for thixotropic agents like fumed silica to improve the efficiency of the overall anti-settling and anti-sag system. Anjeka-4360: Also a polyethylene wax paste, suitable for addition before grinding and dispersion with pigments, providing excellent anti-settling effects and preventing hard settling. These products are widely used in various resin systems such as alkyd/amino baking paints, acrylic baking paints, epoxy, polyurethane, etc., with no significant negative impact on the coating film's properties like yellowing resistance and water resistance18.   III. Countermeasures Under the Waterborne Trend: Balancing Orientation and Anti-settling With increasingly stringent environmental regulations, the application of waterborne metallic paints is becoming more widespread. Waterborne systems, due to their stronger polarity, pose new challenges for the encapsulation and stabilization of metallic pigments. Anjeka offers targeted solutions for this: Anjeka-4561: A waterborne polyamide wax-based anti-settling and anti-sag agent. It not only has excellent anti-settling properties for aluminum and pearlescent powders but also provides a certain aluminum powder orientation effect, helping to improve the sparkling uniformity and visual effect of metallic paints. This is particularly important in waterborne baking paints, dip paints, and other applications pursuing high decorative effects. In practical applications, engineers can test and select among products like Anjeka-4561 and Anjeka-4420 based on the specific system (e.g., waterborne acrylic, epoxy, polyurethane) and process requirements (e.g., need for high thixotropy, sensitivity to slight thickening), with a wealth of customer application cases available for reference in the knowledge base.   IV. Selection and Usage Recommendations: Making the Effect Twice the Result with Half the Effort Clarify the System and Process: First, determine whether it is a solvent-based or waterborne system, the resin type, and whether the pigments are aluminum powder, pearlescent powder, or other metal powders. The production process involves grinding dispersion or post-addition mixing. Testing is Key: Any recommended dosage (e.g., 0.5-5.0%) is an empirical range18. The optimal addition amount must be determined through a series of tests on your own formulation to achieve the best balance between anti-settling effect, cost, and other properties. Pay Attention to Addition Method: For example, it is recommended to first disperse Anjeka-4330 uniformly with the resin at high speed, then add aluminum powder and other raw materials at low speed for mixing to ensure its full dispersion and effectiveness. Anjeka-4360 needs to be added before grinding. Correct processes maximize product efficacy. The stable suspension of metallic pigments is the first step in ensuring the final quality of the coating. If you are looking for solutions for aluminum powder paint settling, pearlescent paint storage stability, or application sagging problems, Anjeka's professional team is always ready to provide technical support.   Free Sample: Contact us to obtain Anjeka anti-settling agent samples suitable for your system for practical verification. Technical Consultation: Our application engineers can provide one-on-one formulation advice and problem diagnosis. Request Information: Need more detailed product technical data sheets (TDS) or application cases? Feel free to message us.

In today's rapidly developing fields of printed electronics, photovoltaic backsheets, and smart wearable devices, conductive paste, as a key functional material, sees its performance stability directly determining the yield and reliability of the final product. However, many formulation engineers have faced this dilemma: a carefully formulated paste shows signs of separation, sedimentation, or even hardening into lumps after sitting in a storage tank for a few weeks; during high-speed printing or dispensing, poor rheological properties lead to uneven lines and reduced resolution. This is not just an aesthetic issue but a technical bottleneck affecting conductivity, adhesion, and even product lifespan. How to keep high-density, high-solid-content conductive fillers "suspended" for a long time, maintaining a uniform and stable working state, has become a common focus in the industry.   I. Why Does Conductive Paste "Stand Unsteady"? – The Scientific Logic Behind Sedimentation Conductive paste typically consists of conductive fillers (such as silver powder, copper powder, carbon materials), resin binders, solvents, and various additives. Due to the much higher density of conductive fillers compared to the organic carrier, they naturally tend to settle under gravity. Furthermore, van der Waals forces between particles can lead to soft agglomeration, further accelerating sedimentation and potentially forming hard sediment that is difficult to redisperse. Industry research shows that paste stability is a comprehensive reflection of particle size distribution, Zeta potential, system viscosity, and rheological characteristics. Simple thickening is not the best solution; improper rheological additives can severely affect the paste's printability, line edge definition, and post-cure conductive properties.   II. Anti-Settling ≠ Thickening: The Core Concept of Precise Rheological Control An ideal conductive paste needs to possess shear-thinning rheological properties: high viscosity at rest or during low-speed storage to effectively lock in fillers and prevent settling; rapid viscosity decrease during high-speed printing, stirring, or dispensing to ensure excellent processing fluidity. This requires that anti-settling thixotropic agents not only provide sufficient steric hindrance or network structure but must also be highly compatible with the resin system to avoid introducing side effects. For example, in demanding electronic encapsulation or touchscreen applications where transparency or color is critical, the additive itself should remain as "invisible" as possible, not affecting the final product's optical appearance.   III. Anjeka Solution: Injecting "Stable Genes" into Precision Electronic Pastes Addressing the application needs of conductive pastes, especially in oily epoxy resin systems, Anjeka Technology provides targeted rheological and dispersion solutions based on a deep understanding of material mechanisms. Precise Thixotropy, Preventing Settling Before It Happens: Anjeka 4410 is a thixotropic agent suitable for systems like conductive silver adhesives and silver pastes. Its characteristic is that it effectively improves the system's anti-settling and anti-sag properties while having minimal impact on the system's gloss and leveling. This means that while achieving good storage stability, it preserves the paste's original application and film-forming characteristics to the greatest extent. It can be used alone or, according to specific process requirements, synergized with materials like hydrophilic fumed silica to finely adjust the rheological curve. Synergistic Dispersion, Stabilizing the Foundation: Good anti-settling begins with excellent dispersion. Anjeka's dispersant product line, such as Anjeka 6040, Anjeka 6860, Anjeka 6881, etc., is recommended for electronic paste systems, helping to achieve uniform and stable dispersion of conductive fillers and pigments, reducing the risk of settling due to agglomeration from the source. The scientific combination of dispersants and anti-settling agents is the foundation for building a high-stability paste system. IV. Practical Recommendations: How to Choose the "Golden Partner" for Your Paste? System First: Clarify your main resin (epoxy, polyurethane, acrylic, etc.), primary solvent, and conductive filler type. Verify Compatibility: Any additive addition must undergo strict compatibility testing to observe whether it causes resin cloudiness, color change, or affects the curing reaction. Addition Method: It is recommended to add the anti-settling thixotropic agent before or during the grinding stage to ensure it is fully dispersed in the system and establishes a stable network structure. For dispersants, they should be mixed with the resin/solvent before adding pigments/fillers to achieve the best wetting effect. Performance Balance: Find the optimal balance between dispersion effect, anti-settling capability, final viscosity, and printability through stepwise addition experiments. Anjeka's technical support team can provide corresponding application advice and sample support. The stability of conductive paste is the bridge connecting formulation design and end performance. Choosing professional rheological additives is a key step in enhancing product competitiveness and reducing after-sales risks. If you are looking for solutions to problems like sedimentation or poor printing in conductive pastes, welcome to contact Anjeka Technology. We can provide you with: Free Samples: Obtain product samples like Anjeka 4410 suitable for your system. Technical Consultation: Communicate with our application engineers to obtain targeted formulation adjustment advice. More Materials: Request detailed technical data and application cases for additives specifically for electronic pastes. Take action now to make your conductive paste "as stable as a rock" from now on!