EZHOU ANJEKA TECHNOLOGY CO.,Ltd

Experimental record sheet Test name Dispersant Comparison for Mitsubishi MA-100 Carbon Black Objective: Comparative Testing: 6062, 6062A, 6062B, and Benchmark: 163 Parameters: Color Development, Thermal Storage Stability, and Fineness. Color paste formulation       Sanmu 965 Hydroxy-functional Acrylic Resin 60         S01/S05/S07 Mixed Solvent (1:1:1 ratio) 27         Dispersant 3 6062 6062A 6062B Benchmark: 163 MA-100 carbon black 10                     Procedure: 1.Grinding: Grind all ingredients together for 3 hours. 2.Quality Control: Measure the fineness (e.g., in μm). Observe and record the appearance and state (e.g., homogeneity, viscosity). 3.Color Development Test: Prepare draw-downs on black and white art paper to evaluate color development and strength. Result Best Performance: 6062A produced the blackest mass tone. Comparable Performance: 6062B and the standard 6062 showed essentially identical results. Benchmark Comparison: When evaluated against the benchmark: 163 , all three Anjeka dispersants (6062A, 6062B, and 6062) demonstrated superior performance. Benchmark:163 yielded the least desirable blackness under the test conditions.   Fineness＜um Fineness After Heat Aging Flow State (Visual) Appearance After Heat Aging Color Draw-down Panel 6062 10 10 Easy Flow Easy flow with slight pseudo-plasticity Qualified 6062A 10 10 Easy Flow Easily Flowable with Slight Charring Excellent 6062B 10 10 Easy Flow Easy flow with slight pseudo-plasticity Qualified BYK163 10 10 Easy Flow Easy flow with slight pseudo-plasticity Poor   Conclusion Anjeka-6062A demonstrated the best color development, while 6062B and 6062 were slightly inferior. B163 showed the poorest performance.

Application of a Modified Polyurea Thixotrope in High-Gloss Aluminum Paint   Lacquer formula Raw material Amount Remark 2057 Dispersion 72.5（%） Wanhua 327 Amino Resin 6 Allnex BYK-8421 3 BYK Anjeka-4420 2 Anjeka   Aluminum Paint (Silver Paint) Formulation Raw material Amount Remark Clear Base 90（%） Wanhua 50% Passivated 9100 6 Aluminum Paint 50% Passivated 9105 3 Aluminum Paint         Procedure 1.Paint Preparation: Dilute the original paint with 10% water (by volume). 2.Spray Application on Substrate: Using the same substrate, apply the paint with a spray gun using the following pattern: Horizontal passes: 6 passes. Vertical passes: 4 passes (over the same wet area, creating a heavy film build). 3.Multi-Round Evaluation (3 Rounds): Round 1: Spray 2 overlapping cross-coats (one horizontal + one vertical pass set). Round 2: Spray 3 overlapping cross-coats. Round 3: Spray 4 overlapping cross-coats. 4.Fluid Adjustment Between Rounds: After completing each round, increase the fluid delivery (material output) of the spray gun by approximately half a turn. 5.Constant Parameters During Each Round: Within each round, do not adjust the fluid flow rate, air pressure, or atomization settings of the spray gun. Purpose: This method evaluates the paint's sag resistance under increasing film thickness and material output, simulating potential application errors or heavy builds.   Conclusion Anjeka 4420 demonstrates superior application characteristics in spray operations: Excellent Atomization: Provides finer mist and reduced overspray compared to other thixotropes at equivalent viscosity. Smooth Application: Results in a quieter spray process with less paint mist. Enhanced Metallic Effect: Promotes superior aluminum flake orientation and alignment. Balanced Performance: Maintains good sag resistance without negatively affecting gloss or recoatability. High-Gloss Finish: Achieves gloss values of up to 121 GU (at 60°) and 75 GU (at 20°).

The thickening effect of modified polyurea thixotropic agent on water   Experimental Formula Raw material Anjeka4420 Competitor's 420 Water 100 100 thixotropic agent 1 1 Procedure   Add thixotropic agent Anjeka4420 and imported competitive product respectively into the water, stir evenly, and let it stand for 12 hours Result Thickening, thixotropic, viscosity 1000mpa.s Thickening, thixotropic, viscosity 1000mpa.s   Effect of a Modified Polyurea Thixotrope on Gloss in Different Resin Systems   Experimental Formula Raw material Amount           varnish 100           thixotropic agent 1           Procedure According to their respective formulations, separately add the thixotropic agent Anjeka 4420 and the imported competitive product. Disperse each mixture at 1500 rpm for 10 minutes. Prepare 100-micrometer (wet film) draw-down panels using the dispersed pastes. After the panels have dried/cured, measure the gloss of the films. results (60° angle gloss) Water-soluble Alkyd Resin (Tongde 3AK) Epoxy Emulsion (Hexion 6530) Hydroxypropyl dispersion (Shi Quanxing 2118) Hydroxypropyl Emulsion (Shiquanxing 2115) Polyurethane Dispersion (DSM E-123) Styrene-Acrylic Emulsion (Dow 120) 空白 96.8 90.1 70.6 78 77 76.7 Anjeka 4420 96.5 87.7 76.5 71 72.9 76.1 Competitor 420 96.3 88.4 77.1 70.3 71.6 73.4 Conclusion The polyurea thixotropic agent has little effect on the gloss of various systems, The effect of Anjeka4420 on gloss is similar to that of competitor 420.   Test on anti-settling property of modified polyurea thixotropic agent for different resin systems    Experimental Formula Raw material varnish thixotropic agent Pearlescent Pigment   Amount 100 1 0.5   Remark     50μm   Procedure After adding the thixotropic agent to the varnish according to the recipe, disperse at 1000 rpm for 10 minutes; then add the pearlescent powder and disperse at 500 rpm for 5 minutes; pour into a transparent bottle; observe the sedimentation after standing for 1 week Results (placed at room temperature for 7 days)   Water-soluble Alkyd Resin (Tongde 3AK) Epoxy Emulsion (Hexion 6530) Hydroxypropyl dispersion (Shi Quanxing 2118) Hydroxypropyl Emulsion (Shiquanxing 2115) Polyurethane Dispersion (DSM E-123) Styrene-Acrylic Emulsion (Dow 120) Blank settlement ratio% 100 100 100 100 100 100 Anjeka 4420 settlement ratio%   13.5 16 13.5 16 13.5 16 competitor's 420 settlement ratio%   13.5 16 13.5 16 13.5 16 Conclusion The modified polyurea thixotropic agent exhibits a notable anti-settling effect in various resin systems, and the anti-settling performance of Anjeka4410 is comparable to that of its competitor 420       Experimental Formula Raw material varnish thixotropic agent color paste       amount 100 1 minute amounts       procedure According to the respective formulations, add the thixotropic agent Anjeka 4420 and the imported competitive product separately. Disperse each mixture at 1000 rpm for 10 minutes. Measure the sag resistance of the resulting materials using a sag tester. Result(μm) Water-soluble Alkyd Resin (Tongde 3AK) Epoxy Emulsion (Hexion 6530) Hydroxypropyl Dispersion (Shiquanxing 2118) Hydroxypropyl Emulsion (Shiquanxing 2115) Polyurethane Dispersion (DSM E-123) Styrene-Acrylic Emulsion (Dow 120) Blank 300 50 100 100 100 100 Anjeka 4420 425 200 150 150 150 175 competitor's 420 425 200 175 175 150 175 Conclusion The polyurea thixotrope provides excellent anti-sag performance across various aqueous systems. Anjeka 4420 demonstrated comparable performance to the competitive product 420.    

Experimental formula for epoxy floor paint Raw material Amount Remark Epoxy Resin: Nan Ya 128 23   Anjeka 6110 0.3 dispersant AGE 3 Reactive benzyl alcohol 2   PM 2 Propylene glycol methyl ether heavy calcium 54 800 mesh wax powder 0.2   Anjeka 4410 0.3 anti-settling agent Anjeka 7331A 0.2 leveling agent Anjeka 5680A 0.3 defoamer White paste 10   Black paste 2   C-19/xylene = 7:3 22 curing agent   Improvement of Anti-Settling Properties in Epoxy Floor Coatings by Post-Adding Anjeka 4410

A coating can have a perfect formulation, flawless application, and ideal cure—yet still fail prematurely. Often, the culprit isn't in the can. It's the invisible layer of contamination already on the substrate. Ignoring this “time bomb” makes adhesion promises hollow and turns quality control into a costly guessing game.   1. The Three Faces of Failure: How Contamination Type Dictates Outcome Contamination isn't a single problem. Its chemical and physical form dictates the specific failure mode, turning your coating's strengths into vulnerabilities: Organic Films (Oils, Silicones, Mold Release): These create a weak boundary layer, causing immediate poor wetting, cratering, or adhesive failure. The coating literally floats on top, unable to achieve intimate contact. Particulates (Dust, Rust, Shop Debris): These act as physical defects and stress concentrators. They lead to film imperfections, pinpoint rusting (early corrosion cells), and drastically reduced barrier properties. Soluble Salts & Moisture: These are delayed-action, destructive forces. Trapped under the film, they cause osmotic blistering and underfilm corrosion months after application, often long after the job is signed off. The “perfect” coating is rendered powerless because it was designed to bond to a clean, reactive substrate—not to an inert or interfering contaminant. 2. The Formulator's New Mission: Engineering "Surface Tolerance" This reality demands a shift in design philosophy. We must engineer coatings not just for ideal lab panels, but for imperfect reality. This means building "surface tolerance" into the chemistry itself: Aggressive Wetting & Penetration: Utilizing specialized surfactants and low-surface-tension chemistry to displace thin oil films and wet micro-roughness, securing initial contact. Reactive Bonding: Incorporating advanced adhesion promoters that can form chemical bonds with the substrate even through minor contamination, or actively compete with and displace it. Flexible, Stress-Relieving Films: Designing resin systems with optimized modulus and elongation to absorb stress concentrations created by embedded particulates, preventing micro-cracking and loss of adhesion. A coating with high surface tolerance isn't a substitute for good preparation—it's the essential safety net for real-world application variability. 3. Conclusion: From Fair-Weather Performer to All-Weather Partner The challenge is clear: our formulations must bridge the gap between laboratory perfection and field complexity. The critical question for any formulator or specifier is no longer just “How does it perform on a clean panel?” but “Does my system possess these elements of intrinsic tolerance?” If not, the path forward involves a deliberate shift—from seeking only maximum performance under ideal conditions to ensuring robust, reliable performance on realistic surfaces. Is your coating a fair-weather performer or an all-weather partner? The ultimate test isn't in the lab report; it's in its surface tolerance. Facing unpredictable field failures? Let's discuss how designing for surface tolerance can build resilience into your next formulation. #Coatings #Adhesion #SurfacePreparation

The thickening effect of modified polyurea thixotropic agent on PVC paste resin system Test Formulation Raw material Amount       PVC resin paste 100       thixotropic agent 0.6       Experimental Procedure 1.Begin by subjecting the paste to high-speed dispersion at 4000 rpm for 25 minutes, until the paste temperature reaches 60°C. 2.Then let it stand for 15 minutes   3.Finally, add the thixotropic agent, disperse at 1500R/min for 10 minutes, and then take it out   4.Measure the viscosity and measure the viscosity after 24 hours Result   Anjeka4410 Anjeka4410S Competitive product 410 Blank Initial viscosity (25℃mpa.s) > 2 million Pasty / non-flowing > 2 million Pasty / non-flowing 1 million 4,800 Viscosity after 24 hours (25℃mpa.s) > 2 million Pasty / non-flowing > 2 million Pasty / non-flowing > 2 million Pasty / non-flowing 4,800 Conclusion Test results indicate that the modified polyurea thixotropic agent from Anjeka provides a superior thickening effect in PVC paste resin slurry, outperforming competitive products which exhibited less effective thickening on the same day.   High-viscosity paste with viscosity exceeding 2 million centipoise, exhibiting a non-flowing consistency.

EZHOU ANJEKA TECHNOLOGY CO.,Ltd Professional additive manufacturer Experimental Record Sheet Test name Anti-settlement test of aqueous slurry with 10% titanium dioxide content Temperature/Humidity:   Customer   Applicant   Test date Jan.6 2026     Experimental Objective: To screen Anjeka dispersants and identify the one that delivers the best anti-settling performance in an aqueous paste containing 10% (by weight) titanium dioxide. Color paste formulation Dispersant: 6071 6220   Amout             water 89             dispersant 1 Anjeka            titanium dioxide 10 Lomon R996                           Procedure 1. Grind the color paste to a fineness of ≤10 μm. Take a portion for centrifugal stability testing. 2.After filtration, place it in a 60℃ oven and observe the sedimentation Result 60℃* for one day dispersant 6220 6071           Delamination None None           Sedimentation No sediment at bottom Slight sediment at bottom, with a paste-like consistency                           Initial slurry centrifugation comparison Centrifugal sedimentation rate % 1000R/10min 3000R/10min           6220 4 13.4           6071 5 12.8                           60℃ for three days dispersant 6220 6071           Delamination Layering, Upper layer turbidity Layering, Upper layer turbidity           Sedimentation No muddy feeling at the bottom Noticeable thickening and a pasty, resistant consistency observed at the bottom of the container.                                           Conclusion In water-based pastes with low titanium dioxide content, Anjeka 6220 provides the best anti-settling stability. No sedimentation was observed after one day of heat aging.

Every formulator and applicator faces the same tension: the drive to build thick, protective films in one pass versus gravity’s relentless pull toward sagging. This isn’t just a practical challenge—it’s a precise rheological battle waged within the coating between application and set. The victor isn’t determined by resin alone, but by a critical class of performance directors: rheology modifiers and surface additives.     1. The Core Mechanism: Programming Thixotropy Winning this battle requires mastering thixotropy—the reversible, time-dependent drop in viscosity under shear. Think of it as the coating’s “memory.” During high-shear application (spraying, rolling), weak additive networks break, letting the coating flow and level. Once shear stops, those networks must reform rapidly and robustly, generating enough yield stress to suspend the wet film. The speed and strength of this recovery are tuned by additive chemistry. Too slow, and sag occurs; too fast, and leveling suffers.   2. The Ultimate Test: Engineering Yield Value in Real Applications This balance faces its toughest challenge in demanding scenarios, like applying a high-build coating to vertical steel. The critical question becomes: How thick can one coat be before it sags? The answer lies in precisely “dialing in” the yield value—the minimum stress needed to start flow. Additives like specially treated clays or high-performance associative thickeners are engineered to trigger a steep rise in yield value immediately after application. But here’s the catch in production: shear history matters. Over-mixing can permanently degrade these thixotropic networks, silently sabotaging anti-sag performance in the final product. Thus, process control and additive shear stability become non-negotiable parts of the success equation.   3. The Conclusion: From Prevention to Predictable Performance Ultimately, the “build vs. sag” dynamic is not a game of chance—it’s a discipline of controlled rheological design. By understanding thixotropy as a tunable property and selecting additives that orchestrate the precise recovery of yield value, formulators transform gravity from an adversary into a manageable variable. The goal evolves from merely preventing failure to engineering a predictable process window, where thick, uniform, and defect-free films are the standard outcome. Mastery of this balance is what separates a basic coating from a truly high-performance, reliable product. Let’s discuss: What’s the most challenging high-build application you’ve formulated for? Which additive chemistry provided your breakthrough?