EZHOU ANJEKA TECHNOLOGY CO.,Ltd

In the industrial coating field, which pursues ultimate surface effects and stable performance, foam is one of the most troublesome "invisible enemies" for coating engineers. It not only affects production and filling efficiency but can also form defects such as craters and fisheyes on the final film, severely damaging the coating's appearance and protective function. Especially in systems like epoxy and polyurethane that have high requirements for transparency and surface smoothness, choosing an additive that can both strongly defoam and have excellent compatibility is crucial. Anjeka 5530, an organosilicon and polymer defoamer for solvent-borne/solvent-free systems, is becoming a reliable choice for tackling foam problems with its rapid deaeration, excellent foam suppression, and outstanding system compatibility.   I. Core Advantages: Why is 5530 the "Epoxy System Expert"? Anjeka 5530 is an organosilicon and polymer solution defoamer. Its unique chemical composition allows it to exert strong efficacy in various systems, especially in epoxy resin systems: Fast and Powerful Defoaming and Deaeration Ability: Can significantly reduce foam generated during production and application, helping to obtain a bubble-free, smooth, and perfect surface. Laboratory comparison data shows that in epoxy systems, its defoaming speed is dramatically improved from over 30 minutes for the blank sample to 1 minute, and it can completely eliminate foam. Excellent Compatibility and Transparency: This is a key advantage of 5530 in high-end applications. It has good compatibility in epoxy systems; its addition does not cause resin solution turbidity or film haze, making it very suitable for occasions with strict transparency requirements. Broad System Adaptability: Not only suitable for epoxy systems but also widely applicable to various solvent-borne and solvent-free systems such as anti-corrosion coatings, industrial coatings, automotive coatings, wood and furniture coatings, and coil coatings.   II. Practical Verification: Data Confirms, Performance Matches the Benchmark We verify the performance of 5530 through rigorous comparative testing: Defoaming and Foam Suppression Performance Benchmarking: In the same epoxy resin formulation, Anjeka 5530 was tested in parallel with the industry-renowned product BYK530. The results showed that both performed equally in defoaming time (both 1 minute) and final foam suppression effect (both 0 foam height), proving 5530's first-class defoaming efficiency. Compatibility is Visibly Evident: The test also observed the state of the resin solution and drawdown film after adding the additive. Both 5530 and BYK530 maintained a "clear and transparent" state, ensuring the final coating's high transparency and pure appearance. This quantitative and qualitative data provides solid confidence for your formulation selection.   III. Application Guidelines: How to Maximize the Effectiveness of 5530? To ensure 5530 achieves the best results in your system, we recommend: Timing of Addition is Key: For optimal performance, it is recommended to add Anjeka 5530 to the grinding paste before grinding. If it needs to be added during the let-down or before application stages, sufficient high shear force (e.g., thorough stirring) must be provided to ensure uniform dispersion and avoid the risk of craters caused by uneven dispersion. Recommended Dosage Range: The usual addition amount is 0.1% to 1.0% of the total formulation weight. The specific optimal dosage needs to be determined through experiments based on your specific resin system, solvent combination, and application process. Application Scenario Expansion: Besides the coatings field, 5530 is also recommended as a non-silicone defoamer in adhesive applications due to its good compatibility with epoxy and wide applicability. Whether improving the surface quality of existing epoxy floors or anti-corrosion coatings, or developing high-transparency industrial topcoats, Anjeka 5530 provides a reliable solution with its balance of strong defoaming and excellent compatibility. Say goodbye to bubble troubles, starting with choosing a professional defoamer.   Take Action Now to Experience the Surface Revolution Brought by 5530: Free Sample: Contact us to apply for a free sample of Anjeka 5530 and verify its fast defoaming effect and excellent transparency in your system. Technical Consultation: If you have specific foam problems or system compatibility questions, our technical team can provide professional advice. Get Test Report: Want to learn more about the comparative test data between 5530 and BYK530? Request the complete experimental report.

In the industrial coatings sector, where high production efficiency and excellent film appearance are paramount, the grinding and dispersion process is a critical step determining product performance and cost. Inorganic pigments, especially titanium dioxide, often lead to a sharp increase in grinding paste viscosity due to their high surface energy, resulting in higher energy consumption and potential subsequent film defects such as insufficient gloss, haze, and flooding/floating. Selecting an efficient wetting and dispersing agent is the starting point for solving these challenges. Anjeka 6860, a wetting and dispersing agent specifically designed for stabilizing inorganic pigments, is becoming a reliable choice for many engineers facing stringent process requirements, thanks to its excellent viscosity reduction, broad system compatibility, and outstanding storage stability.   I. Core Advantages: Why is 6860 the "Inorganic Pigment Expert"? Anjeka 6860 is a wetting and dispersing agent containing an acidic group copolymer solution. Its anionic nature gives it excellent affinity for the surface of inorganic pigments, allowing for rapid wetting and anchoring of pigment particles, preventing their re-flocculation through steric hindrance. This mechanism directly delivers three core advantages: Powerful Viscosity Reduction, Boosting Efficiency: Significantly reduces grinding paste viscosity, making high-solids and solvent-free systems easier to grind and pump, directly reducing energy consumption and production time. Optimized Optical Properties: Fully dispersed titanium dioxide maximizes its hiding power and tinting strength, thereby improving film gloss and effectively reducing haze caused by poor dispersion, resulting in a clearer, more vibrant coating appearance. Excellent Storage Stability: A stable dispersion state means the colorant is less prone to re-coarsening and settling during long-term storage, with minimal changes in viscosity and fineness, ensuring batch-to-batch consistency and reproducibility.   II. Broad Applicability: Beyond Traditional Coatings The applicability of 6860 extends far beyond traditional perceptions, as its design allows it to handle various advanced and specialty systems: Responding to Environmental Trends: Suitable for high-solids and solvent-free coatings, and the product is zero-VOC, meeting increasingly stringent environmental regulations. Mainstay in Industrial Coatings: Performs excellently in industrial fields such as coil coatings, automotive coatings, and anti-corrosion coatings, particularly suitable for acid-catalyzed systems (e.g., coil coatings). Preferred for Resin-Free Colorants: Can successfully prepare storage-stable inorganic pigment resin-free colorants in glycol ether solvents like ethylene glycol monobutyl ether and benzyl alcohol, as well as UV-curing monomers like TPGDA and NPGDA, providing flexible coloring solutions for UV inks and specialty coatings. Breakthrough in Functional Systems: Tests show that 6860 exhibits excellent viscosity reduction performance in photovoltaic aluminum paste; in high-filler, high-viscosity systems like polyaspartic coatings, it balances viscosity reduction and anti-settling needs well.   III. Practical Verification: Data Speaks, Results Are Visible Our laboratory and application cases provide strong evidence: In Coil Coatings, a gray paint made from a white paste using 6860 to disperse titanium dioxide and a black paste using 6042A to disperse carbon black showed a rub-out color difference (ΔE) of only 0.3, demonstrating its excellent pigment stability and anti-flooding ability. In Resin-Free Colorants, grinding titanium dioxide with 6860 in n-butanol resulted in a fineness maintained below 10μm after 7 days of heat storage, with a slow increase in viscosity, showing outstanding long-term stability. In a demanding polyaspartic white paste test, 6860 provided effective viscosity reduction (viscosity 2545 mPa.s) while achieving the best anti-settling effect (0.2 settlement after 3 days of heat storage), demonstrating its comprehensive performance in complex systems.   IV. Usage Guidelines: How to Maximize the Effectiveness of 6860? To achieve optimal results, we recommend: Addition Order: During the grinding stage, first add Anjeka 6860 to the resin or solvent, mix thoroughly, and then add the pigment to ensure it fully wets the pigment surface. Recommended Dosage: For inorganic pigments, the recommended addition is 2%-5% based on the total pigment weight; for titanium dioxide, the suggested range is 1%-3%. The specific optimal dosage should be determined through testing based on your specific resin, solvent, and pigment system. Combination Suggestions: For complex color systems containing organic pigments or carbon black, it is recommended to use 6860 in combination with dispersants like Anjeka 6042A, which are good at handling organic pigments, to more effectively solve flooding/floating issues. With its exceptional dispersing power for inorganic pigments, especially titanium dioxide, Anjeka 6860 is helping more and more companies solve pain points such as high grinding viscosity, insufficient gloss, and poor storage stability. Whether improving existing product performance or developing new high-solids, solvent-free, or UV-curable products, it is a trustworthy starting point.   Take Action Now to Experience the Change Brought by 6860: Free Sample: Click here or contact our customer service to apply for a free sample of Anjeka 6860 and verify its viscosity reduction and stabilization effects yourself. Technical Consultation: If you have specific resin system or process challenges, our technical engineers are happy to provide one-on-one dispersion solution advice. Get Materials: Want to learn more detailed application data of 6860 in different systems? Request the complete technical datasheet and case reports.

In today's pursuit of coating fullness, single-pass application efficiency, and ultimate protective performance, high-build coating has become a clear trend in industries such as industrial corrosion protection, flooring, and marine applications. However, thick-film application is a double-edged sword. While enhancing performance, it also amplifies challenges in the formulation system: pigments and fillers are more prone to settling and caking, and the risk of sagging during vertical application increases sharply. How can we inject a "stable" gene that "stands firm and hangs tight" into high-solids, high-viscosity solvent-based systems? Anjeka Technology's Anjeka-4310-20X polyamide wax paste is becoming a reliable choice for many engineers facing this challenge.   I. The Pain of High-Build: The Dual Challenge of Settling and Sagging High-build formulations often mean higher pigment/filler loading and more complex rheological demands. At rest, gravity causes particles to sink. If anti-settling is poor, it may require frequent stirring at best, or form hard cake at the bottom of the container at worst, causing waste and uneven performance. During application, especially on vertical surfaces, the coating sags under gravity. Without sufficient thixotropic structure (shear-thinning, recovery at rest), sagging and tear marks are prone to occur, affecting film thickness uniformity and appearance. Traditional anti-settling methods sometimes struggle to balance both, or have demanding process requirements.   II. The Solution of Polyamide Wax Paste: Building a 3D Network Structure Anjeka-4310-20X is a polyamide wax pre-dispersed in solvent. Its core mechanism lies in the formation of a flexible three-dimensional network structure within the coating system during dispersion, through hydrogen bonding and entanglement of polyamide wax microcrystals. This network acts like an invisible scaffold: At Rest: The network structure is intact, providing high viscosity, locking pigment and filler particles, effectively preventing settling. Even if slight settling occurs due to prolonged storage, the structural properties make the sediment loose and easily re-stirred, avoiding hard cake. Under Shear (Application): The network structure is temporarily broken, system viscosity drops rapidly, giving the coating good flow and application properties. After Shear Stops: The network structure quickly recovers, viscosity rebounds, thereby resisting gravity-induced sagging, making it particularly suitable for one-pass thick coating applications.   III. Four Application Values of Anjeka-4310-20X Based on this mechanism, 4310-20X demonstrates multiple values in solvent-based systems: Excellent Balance of Anti-Settling and Anti-Sagging: Its thixotropic effect is superior to general anti-settling agents, simultaneously meeting storage stability and thick-film application requirements. It is an ideal rheology additive for high-build coatings (e.g., floor mid-coats, anti-corrosion primers). Enhances Metallic Paint Performance: This 3D network can assist in orienting flake pigments like aluminum and pearlescent powders, thereby enhancing the flash effect and metallic feel of the film. Suitable for high-end furniture coatings, industrial topcoats, etc. Process-Friendly, Easy to Use: As a pre-dispersed paste, it requires no heating for activation. Effective dispersion can be achieved via high-speed stirring within the 20-40°C range, simplifying the production process. This provides a convenient solution for customers looking to switch from powder thixotropic agents to easier-to-handle forms. Broad System Compatibility: The product is suitable for various solvent-based coatings, inks, UV-curable systems, and adhesives (e.g., sealants, aspartic polyurea). It has successful application cases in marine paints, furniture coatings, and solvent-free systems.   IV. Key to Use: Mastering the Art of Dispersion To fully leverage the performance of 4310-20X, correct addition and dispersion are crucial. During production, it is recommended to use a high-speed stirrer with a linear speed of at least 4 m/s, disperse at 25-35°C for 30-40 minutes. This process is key to building a stable thixotropic network, ensuring the product is fully and uniformly dispersed while avoiding over-dispersion that could damage the structure. The recommended dosage can be flexibly adjusted based on needs: 0.5-2% for anti-settling, 2-5% for anti-sagging.   In the era of high-build coatings, rheology control is the cornerstone of formulation stability. Anjeka's Anjeka-4310-20X polyamide wax paste, with its excellent anti-settling and anti-sagging performance, ability to orient metallic pigments, and process-friendly adaptability, helps you overcome thick-coating challenges and enhance product competitiveness. Take Action Now: Get Free Samples: Verify the effect of 4310-20X in your system. Request Technical Data: Gain in-depth understanding of detailed product parameters and application guidelines. Consult Technical Engineers: Receive targeted rheology solutions.

In the production and application of multi-color paints such as industrial paints, floor coatings, and anti-corrosion coatings, "floating/flooding" and "pigment settling" are two persistent challenges most frequently encountered by formulation engineers and procurement personnel. Uneven color affects product appearance consistency, while hard settling leads to application difficulties, performance degradation, and even waste. Traditional single-function additives often address one issue at the expense of the other. The innovation of Anjeka's Anjeka-6104S lies in its unique "controlled flocculation" mechanism, combining excellent anti-floating/flooding capability with significant anti-settling effect into one, providing a one-stop solution for the long-term stability of multi-color paint systems.   I. In-Depth Analysis of Pain Points: The Root Causes of Floating, Flooding, and Settling Floating and flooding essentially result from the separation of colors caused by the different migration rates of various pigments (such as titanium dioxide, organic pigments, and carbon black) during film drying, due to differences in particle size, density, and surface polarity within the system. Hard settling, on the other hand, occurs due to insufficient pigment dispersion stability, leading to aggregation and sinking under gravity during storage. The two often occur together, jointly challenging the stability and application properties of the coating system.   II. Core Solution: The Unique "Controlled Flocculation" Technology Anjeka-6104S does not achieve stability by completely isolating pigment particles but creatively employs the principle of "controlled flocculation." It enables the formation of a loose, controlled network flocculation structure between different pigments and extender pigments. This structure12: Locks in Color: Effectively restricts the free movement of different pigment particles, thereby fundamentally preventing floating and flooding. Supports Particles: The formed three-dimensional network structure can support pigment particles, significantly slowing down or preventing the formation of hard settling12. Synergistic Effect: The product also contains polysiloxane copolymers, which further enhance the anti-floating effect and improve film surface leveling and slip. This can sometimes eliminate the need for additional silicone leveling agents.   III. Performance Verification: Multi-System Testing, Reliable Performance Laboratory data fully demonstrates the broad applicability and reliability of Anjeka-6104S: Broad-Spectrum Anti-Floating/Flooding: In multi-color paint tests using various resin systems such as thermoplastic acrylic, hydroxy acrylic, polyester, and epoxy, Anjeka-6104S effectively eliminated floating and flooding phenomena. Flexible Process Adaptability: Whether added before grinding (for better pigment wetting) or after grinding (for easy post-adjustment), its anti-floating/flooding effect has been verified, providing flexibility for the production process. Significant Anti-Settling Effect: In the same tests, Anjeka-6104S showed a reduction in pigment settling ratio, with the post-addition method yielding better anti-settling results in systems like acrylic and alkyd. Solving Practical Formulation Challenges: For common floating issues in gray systems (such as floating white or black) in floor coatings and industrial paints, Anjeka-6104S is listed by the technical team as an effective solution recommendation.   IV. Application Guide: How to Use Anjeka-6104S Efficiently Applicable Systems: Particularly suitable for solvent-based and solvent-free coating systems of medium to high polarity, such as epoxy, polyester, acrylic, and alkyd resins, widely used in industrial, architectural, anti-corrosion, and automotive coating fields. It can also be used in amine-neutralized water-based systems. Typical Problems: An ideal choice for solving floating when titanium dioxide is compounded with colored pigments, uneven color in gray paints, and preventing hard settling. Addition Recommendation: Generally added based on the total pigment content. Recommended ranges: titanium dioxide 0.5%-2.5%, inorganic pigments 3%-10%, organic pigments 10%-20%. It is recommended to add it to the grinding material first and disperse it thoroughly for optimal results. Stability is the cornerstone of coating quality. Facing the challenges of floating and settling in multi-color paints, choosing an additive with a scientific mechanism and proven effectiveness is crucial. Anjeka-6104S, with its unique "controlled flocculation" technology, provides you with a dual-effect stability guarantee.

In the "face project" of automotive coatings, the purity of color, the fullness of gloss, and long-term stability are the invisible benchmarks defining whether a product is "premium." However, issues like pigment agglomeration, floating and flooding, and storage thickening often become stumbling blocks on the formulator's path to perfection. The core often lies in—dispersion. Dispersion is not just about breaking pigments apart; it's about providing a long-term "home" for each pigment particle through scientific anchoring and stabilization. Anjeka Technology focuses on this, offering precise dispersant choices for different pigments and systems.   I. The "High-Standard" Test for Automotive Coatings: Why Dispersion is the Performance Cornerstone? With the automotive industry's shift towards electrification and intelligence, and rising consumer demands for vehicle appearance durability and color personalization, automotive coatings face unprecedented high-performance challenges: higher gloss and distinctness of image (DOI), superior weather and chemical resistance, more complex effect pigment applications, and environmental trends like water-based and high-solids formulations. These impose near-strict requirements on the dispersion state of pigments within the film. Poor dispersion directly leads to reduced tinting strength, loss of gloss, uneven color, and can trigger subsequent flocculation and settling, severely affecting the final film performance and long-term stability.   II. Precision Strategy: Different Pigments Require Different Dispersion "Keys" The diversity of pigment chemical properties means a "one-size-fits-all" dispersion approach is rarely effective. Based on in-depth research into pigment surface characteristics and dispersion mechanisms, Anjeka has built a targeted product matrix: Conquering "Carbon Black" and High-Surface-Area Organic Pigments: Anjeka-6164/A, with its powerful anchoring groups, tightly adsorbs onto surfaces like carbon black, providing excellent steric hindrance and electrostatic stabilization, effectively addressing issues like insufficient jetness, thickening, and floating/flooding caused by dispersion instability. Overcoming "Phthalocyanine" and Other Hard-to-Disperse Organic Pigments: For pigments like Phthalocyanine Blue and Green that are prone to flocculation, Anjeka-6161A demonstrates special efficacy. It significantly improves the deflocculation state of pigment particles, thereby releasing the inherent brightness and saturation of the pigment, resulting in purer, more vibrant colors. Efficiently Handling "Inorganic Pigments" and General Needs: For titanium dioxide and various inorganic color pastes, Anjeka-6176 offers a cost-effective solution, effectively reducing grinding viscosity, improving grinding efficiency, and ensuring storage stability. Anjeka-6050, as a versatile polymeric dispersant, provides good color development and gloss in many organic pigment systems. Adapting to "Solvent-Based" and "Water-Based" Dual-Track Systems: In traditional solvent-based and high-solids systems, Anjeka-6110/A shows good dispersion adaptability for high-polarity pigments.  III. Beyond Dispersion: Injecting Stable Genes into the Automotive Coating System The value of an excellent dispersant extends beyond efficiency gains during the grinding stage. Anjeka dispersants are designed with the entire lifecycle in mind: Enhancing Initial Performance: By optimizing pigment dispersion, maximizing pigment tinting strength and hiding power lays the foundation for high gloss and DOI. Ensuring Process Stability: Preventing pigment re-flocculation and settling during coating production, storage, and transportation ensures batch-to-batch consistency. Optimizing Application Performance: A good dispersion state aids coating leveling, reducing film defects caused by pigment issues. Supporting Long-Term Durability: A stable pigment dispersion system is the internal support for the film to resist erosion from UV light, humidity, heat, chemicals, etc., maintaining color and gloss for longer. The art of balancing color and performance begins with precise dispersion. The Anjeka dispersant product matrix aims to be your reliable partner in overcoming automotive coating formulation challenges. We offer professional technical support and sample services to help you verify product performance in your specific systems. Take Action Now: Contact Us to obtain detailed product technical information, or submit your formulation system details to apply for targeted samples.

In the fields of industrial coatings, floor paints, and high-performance adhesives, color is not just about appearance; it is a direct reflection of quality and stability. However, from pigment grinding to the final film formation, issues such as insufficient pigment dispersion, storage thickening, and floating/flooding during application have long plagued formulation engineers and procurement decision-makers. Choosing an efficient dispersant has become key to ensuring product performance, reducing production risks, and enhancing market competitiveness. ANJEKA-6062B, a block copolymer dispersant specifically designed for solvent-based and solvent-free systems, is becoming a reliable partner for many companies in overcoming dispersion challenges with its excellent versatility, viscosity reduction and color development capabilities, and outstanding storage stability.   I. Core Industry Challenge: Why is the Stability of General Pigment Pastes Crucial? Modern industrial coating places extremely high demands on color consistency, coating durability, and production efficiency. A qualified general pigment paste not only needs to achieve high fineness and low viscosity during grinding but must also maintain stable performance after long-term storage, avoiding issues like inaccurate color matching, decreased film gloss, or surface defects due to pigment flocculation and thickening. Furthermore, with the advancement of environmental regulations, the application of high-solid and solvent-free systems is becoming increasingly widespread, posing more severe challenges to the compatibility of dispersants with resin systems and their stability under extreme conditions. Finding an additive that can provide stable dispersion effects across systems and pigment types is fundamental to enhancing overall formulation competitiveness.   II. Technical Core: The "Steric Hindrance" Stabilization Mechanism of 6062B The outstanding performance of ANJEKA-6062B stems from its scientific chemical design. As a block copolymer solution containing pigment-affinic groups, it functions through a unique "steric hindrance" stabilization mechanism: Anchoring and Extension: The pigment-affinic groups in its molecular chain firmly adsorb onto the pigment particle surface, while the polymer long chains fully extend in the solvent, forming a protective barrier. Preventing Flocculation: This barrier effectively prevents pigment particles from re-flocculating and aggregating as they approach each other due to Brownian motion, thereby achieving long-term stable dispersion of pigments. This mechanism brings multiple advantages: lower grinding viscosity (improving production efficiency and pigment loading), better color development (enhancing color saturation and hiding power), and stronger storage stability (resisting performance degradation caused by heat storage).   III. Empirical Performance: Application Feedback from Flooring and Industrial Coatings Laboratory data and customer applications jointly validate the comprehensive strength of 6062B: In the Epoxy Flooring Field: Comparative tests showed that white, black, and blue pastes prepared using 6062B had significantly lower initial viscosity than competing products, demonstrating excellent viscosity reduction. More importantly, their color development was visually superior (whiter, blacker, bluer), and after 7 days of heat storage at 60°C, the viscosity increase was slower, and fineness remained intact (≤30μm), ensuring batch-to-batch stability of the paste. In the final floor topcoat, whether for trowel or self-leveling applications, there was no joint color difference, and gloss was high. In the Industrial Coatings Field: 6062B demonstrated broad resin compatibility. In black and red paint tests in epoxy systems, after heat storage, not only did viscosity decrease, but color difference was minimal (ΔE

In the world of solvent-based coatings, achieving a vibrant, uniform, and stable color is a primary goal. However, a common yet often misunderstood phenomenon—pigment flocculation—can silently undermine this effort. Imagine a meticulously ground, fine pigment paste that, after storage, develops graininess, loses color strength, or causes floating and flooding. This is the work of flocculation. Unlike simple settling, flocculation involves the re-agglomeration of dispersed pigment particles into loose clusters, destroying the initial dispersion quality. This article delves into the root causes of flocculation in solvent-based systems and provides a systematic methodology for prevention, ensuring long-term color stability and performance.   Understanding the Mechanism – Why Do Pigments “Re-Clump”? In solvent-based coatings, the primary stabilization mechanism is steric hindrance, not electrostatic repulsion which dominates in aqueous systems. Here’s how flocculation occurs: Insufficient or Weak Anchoring: The dispersant molecule has a specific “anchor group” designed to adsorb firmly onto the pigment surface. If this adsorption is too weak, or if the dispersant dosage is insufficient to cover all pigment surfaces, the protective layer is incomplete. Exposed pigment sites become nucleation points for re-attraction via van der Waals forces . Poor Compatibility of the Solvated Chain: The “solvated chain” of the dispersant must be fully compatible with the resin and solvent system. If it is incompatible, the chain collapses rather than extending into the medium, drastically reducing the steric barrier. This allows particles to approach closely and flocculate. System Shock (Compatibility Issues): Even a stable pigment paste can flocculate when added to the final paint formulation if there is poor compatibility between the paste’s medium and the paint’s resins/solvents. This sudden change in environment can destabilize the dispersion .   The Flocculation Prevention Toolkit – A Four-Step Methodology Preventing flocculation is proactive, not reactive. Follow this systematic approach: Step 1: Select the Right Dispersant with a Strong “Anchor” The choice of dispersant is foundational. For solvent-based systems, high-molecular-weight polymeric dispersants that rely on robust steric hindrance are key. Match the Anchor to the Pigment: Different pigments (carbon black, organic red/yellow, inorganic iron oxides) have different surface chemistries. The dispersant’s anchor group must be tailored for strong, persistent adsorption. For instance, dispersing carbon black in a polyurethane system may require a different dispersant (e.g., Anjeka 6161A or 6881) than dispersing phthalocyanine blue . Prioritize Versatility for Complex Systems: If your formulation handles multiple pigments or resin systems, a versatile dispersant can simplify inventory and reduce compatibility risks. Products designed as “universal” for solvent-based systems (applicable in PU, epoxy, acrylic, etc.) offer a wider safety margin . Step 2: Optimize Dispersant Dosage – It’s a Science, Not a Guess Under-dosing is a direct path to flocculation. The dosage must be sufficient to achieve complete surface coverage. Follow Scientific Guidelines: A common starting point for polymeric dispersants is 10-50% on the weight of organic pigments/carbon black, and 2-10% for inorganic pigments. However, this must be validated for each specific case. Conduct a “Grind Curve” Test: Gradually increase the dispersant dosage in a series of lab grinds while monitoring fineness and viscosity. The optimal dosage is typically at the point where further addition yields minimal improvement in fineness or viscosity reduction. Insufficient dosage will lead to poor initial dispersion and guaranteed future flocculation. Step 3: Validate with Accelerated Stability Testing Initial fineness is meaningless without predicting long-term stability. Accelerated testing is your quality assurance. Standard Protocol: Subject the finished pigment paste or paint to heat aging (e.g., 50-60°C for 7-14 days). This accelerates the thermodynamic processes that cause flocculation during shelf life. Post-Test Evaluation: After heat aging, check for: Increase in Fineness Grind: Indicates particle re-agglomeration. Significant Viscosity Increase or Gelation: Can be a sign of flocculation or system incompatibility. Color Property Shifts: Check for loss of color strength, development of floating/flooding, or changes in gloss on drawdowns. Only a dispersant that passes this test can be considered effective for long-term stability . Step 4: Ensure Total System Compatibility The dispersant must be compatible with the entire formulation ecosystem. Resin and Solvent Compatibility: Verify that the dispersant’s solvated chain is compatible with your main resin (e.g., acrylic, PU, epoxy) and solvent blend. Incompatibility can cause haze, seeding, or viscosity instability. Pigment Paste & Final Paint Compatibility: When adding a resin-free pigment paste to the final paint, ensure it is added under steady agitation to facilitate smooth integration and prevent instant flocculation (“shock”) . Addressing Float/Flood: If flocculation manifests as floating or flooding (color separation), it may require a combined approach. Sometimes, a dispersant optimized for stabilization (e.g., Anjeka 6200C) may increase viscosity, while one good at reducing viscosity (e.g., 6111) may not prevent floating. In such cases, technical support may recommend a combination or a specific product like 6810 to balance both needs .   Partnering for Stable Color Preventing pigment flocculation is not about a single magic ingredient, but about a scientific selection process and rigorous validation. It requires understanding the interaction between the pigment, the dispersant’s molecular architecture, and the entire coating formulation. At Anjekang Technology, we specialize in providing tailored dispersion solutions for solvent-based coatings. Our product range, from versatile options like the 6881 series to specialized solutions for carbon black (e.g., 6161A, 6272) or anti-floating agents (e.g., 6104S), is backed by extensive application data and technical expertise . Take the Next Step Towards Flocculation-Free Formulations: Request a Technical Consultation: Describe your system (resin, pigments, solvents) and challenges to our engineers for a preliminary product recommendation. Obtain Samples: Test our recommended dispersants (such as 6860, 6881, or 6161A) in your actual formulations with accelerated aging tests .   Let us help you build stability into your coatings from the ground up.

Ezhou Anjeka Technology Co., Ltd. Professional Additives Manufacturer Experiment Record Sheet Experiment Name  Replacement of Dispersant Tego 755W in PVC Ink Pigment Paste Temperature / Humidity：   Customer / Applicant / Experiment Date       Objective: After 7 days of hot storage, compare with competitor product 755W: fineness must not show significant coarsening, and no hard sedimentation. Color development should also be evaluated before and after hot storage. Two formulations will be tested: one with deionized water and one with ethanol. Pigment Paste Formulation PVC INK         Water-Based Formulation       Ethanol-Based Formulation       Deionized Water 69.5     Ethanol 70     Anjeka7414 0.5     Carbon Black (sample) 20     Carbon Black (sample) 20     Dispersant 10 755W/6871/ 6071   Dispersant 10 755W/6871/ 6071                           Test Method: Add test materials step by step, grind for 3 hours, then compare fineness, viscosity, and color development. Ethanol Resistance Test of Pigment Paste: Add 1 part of water-based pigment paste to 30 parts of ethanol, mix well, and observe for flocculation / coarsening.   Test Result Water-Based System   Fineness before storage (μm) Viscosity before storage (mPa·s)     Fineness after 7 days at 60°C (μm) Viscosity after 7 days at 60°C (mPa·s)     Fineness um Viscosity mpa.s     Fineness um Viscosity mpa.s   Anjeka6871 ＜10 96.13   Anjeka6871 ＜10 72.1   Anjeka6071 ＜10 552.3   Anjeka6071 ＜10 624.8   755W ＜10 408.5   755W   Gel-like, non-flowable                   Ethanol Resistance Test   After mixing After 4 hours           Anjeka6871 No particles, no coarsening No particles, no coarsening           Anjeka6071 Few large particles Few large particles           755W Many small particles Many small particles           In the water-based system, 6871 shows the best ethanol resistance.                                 Ethanol-Based System            before storage (μm)  Viscosity before storage (mPa·s)     Fineness after 7 days at 60°C (μm) Viscosity after 7 days at 60°C (mPa·s)     Fineness um Viscosity mpa.s     Fineness um Viscosity mpa.s   Anjeka6871 ＜10 745   Anjeka6871 ＜10 985.3   Anjeka6071 ＜10 360.5   Anjeka6071   Gel-like, non-flowable   755W ＜10 1033   755W ＜10 865.2             Conclusion Anjeka 6871 shows the best color development before and after hot storage. Recommended for the customer as a universal dispersant for both water-based and ethanol-based systems.