EZHOU ANJEKA TECHNOLOGY CO.,Ltd

In clear varnishes, there is no place for imperfections to hide. This makes additive selection more important than ever. By choosing highly compatible, low-haze additives, formulators can balance appearance, flow, transparency, and long- term performance with confidence.       Performance-Focused Structure   1. Achieving High Optical Clarity Additives that minimize haze, turbidity, and micro-defects. 2. Delivering a Smooth, High-Gloss Finish Leveling strategies for premium appearance. 3. Ensuring Clean, Defect-Free Application Foam management and surface-control solutions. 4. Enhancing Durability and Scratch Resistance Wax and micro-powder selection for clear systems.     Clear-coat formulation is all about precision. If you understand what each additive contributes—wetting, leveling, defoaming, rheology—you’re already halfway to a flawless finish. And if you need support tailoring an additive package to your system, our team is always here to help.

In modern formulation development, additives are no longer just “performance enhancers.” They play a critical role in balancing three often competing priorities: performance, cost, and stability. Choosing the right additive requires a clear understanding of your system and the trade-offs involved, as each decision can impact multiple aspects of the final product.   Formulators often face three major, interconnected challenges when selecting additives:   Performance vs. Cost Premium additives may deliver excellent wetting, dispersing, defoaming, or leveling, but come at a higher price. Lower-cost alternatives can reduce upfront costs but may compromise performance or cause defects. Performance vs. Stability Some high-performance additives perform well under mild lab conditions but destabilize the formulation under heat, shear, or extreme pH. Ensuring long-term stability while maintaining effectiveness is key. Cost vs. Stability Cheaper additives might save money initially, but they can lead to shorter shelf life, rework, or production delays—ultimately increasing total cost of ownership.   Selecting the right additive isn’t about picking the “strongest” one—it’s about choosing the one that fits your system. Start by understanding your formulation and its challenges. Focus on the performance attributes that matter most. Adjust dosage and the order of addition carefully. Finally, test additives under conditions that match real production to avoid surprises later. Cost should always be weighed against potential losses from instability or defects.   Balancing performance, cost, and stability is a key challenge in modern formulation development. With a thorough understanding of the system, careful additive selection, and realistic testing, formulators can achieve optimal results that meet both technical and commercial goals.   Interested in learning how additive strategies can optimize your formulation development? Contact us or explore our resources to see how careful additive selection can improve performance, reduce costs, and enhance stability in real-world applications.

Test Record Sheet Test Name Defoamer Testing for PVC Temperature/Humidity   Customer   Applicant   Test Date 25.10.29     Test Objective: Color Paste Formulation Control Paste Formulation Defoamer Test Formulation PVC Paste Resin 40 Remark   Control Paste 100     Plasticizer 39.8 DOTP   Defoamer 0.2     Dispersant 0.2 AJK 6150           Filler 20 1250 Ground Calcium Carbonate           Total 100             Testing Method 1.The control paste was prepared under the conditions of 1500 rpm for 10 minutes. 2.Different defoamers were added proportionally, mixed at 2000 rpm for 5 minutes, and then left to stand. The foam inhibition effect and defoaming time were observed. 3.Check the cross-section for the presence of bubbles after drying at 200°C for 5 minutes. Testing Result   Defoamer Blank 5088 5053 5066N 5141 5680A 5530 Surface Defoaming Time ＞2H 15min 20min 95min 98min 90min ＞2H Foam Inhibition after Mixing Foam Coverage,100% Foam Coverage,80% Foam Coverage,90% Foam Coverage,100% Foam Coverage,100% Foam Coverage,100% Foam Coverage,100% Dried Cross-Section Foam-Free Foam-Free Foam-Free Foam-Free Foam-Free Foam-Free Foam-Free                 Defoamer 5055 5057           Surface Defoaming Time 25min 90min           Foam Inhibition after Mixing Foam Coverage，90% Foam Coverage，80%           Dried Cross-Section Foam-Free Foam-Free                                                           Conclusion Anjeka 5088 exhibits excellent defoaming and foam suppression performance in PVC plastisol systems.  

Dispersant Testing for Thermally Conductive Filler Pastes by Anjeka   Application Testing of Anjeka 6976 in Polyester Polyol Filler Pastes   Paste Formulation   Precipitated Alumina （3μm） Boron Nitride（2000 mesh） Magnesium Hydroxide（3 μm Grade） Remark Polyester Polyol 45 65.4 65.4 FH-2120 Dispersant 0.5 0.6 0.6 Anjeka 6976 Filler 54.5 34 34   Total 100 100 100     The dispersant was added to the resin and mixed until homogeneous. The filler was then introduced, and the mixture was dispersed using a high-speed disperser at 2500 rpm for 20 minutes.       Comparison of Viscosity Reduction by Different Dispersants Viscosity mpa.s（25℃） Precipitated Alumina Boron Nitride Magnesium Hydroxide Blank 2103 1289090 3196 Reference 9076 2103 734221 1730 6976 774 177250 1346     In polyester-based thermally conductive filler pastes, Anjeka6976 demonstrates superior viscosity reduction compared to the competitive product 9076.   Application Testing of Anjeka 6976 in Epoxy Resin Filler Pastes   Paste Formulation   Precipitated Alumina （3μm） Magnesium Hydroxide （3 μm Grade） Remark Epoxy resin 45 65.4 Sanmu 828 Dispersant 0.5 0.6 Anjeka 6976 Filler 54.5 34   Total 100 100     The dispersant was added to the resin and mixed until homogeneous. The filler was then introduced, and the mixture was dispersed using a high-speed disperser at 2500 rpm for 20 minutes.     Comparison of Viscosity Reduction by Different Dispersants Viscosity mpa.s（25℃） Precipitated Alumina Magnesium Hydroxide Blank 24456 72022 Reference 9076 13661 13943 6976 14152 9849   In epoxy-based thermally conductive pastes, Anjikang 6976 performs comparably to the competitive product. However, for magnesium hydroxide (Mg(OH)₂) dispersion, it demonstrates superior viscosity reduction compared to 9076.        

Anjeka Experimental Report (No：2025071201)   Anjeka 6503 Project: Dispersant Comparison Category: Testing of Dispersant Performance in Polyester Resin for Titanium Dioxide Dispersion and Let-Down Stability Personnel: R&D Department Date Submitted: Sep. 28, 2025 Abstract   This study evaluates the performance of selected Anjeka dispersants for dispersing titanium dioxide and carbon black in a polyester resin baking enamel system. The assessment is based on two key observations: the color difference in rub-up tests on drawn-down panels and the degree of pigment flooding in the paste stored in the container.A color paste was prepared by grinding polyester resin with titanium dioxide and carbon black. This paste was then let down into a paint, which was placed under observation. The paint formulated with Anjeka dispersant, after standing at 60°C for 3 days, exhibited a smaller color difference in rub-up tests compared to the reference sample.   Key words:dispersant, Rub-up Color Difference     1.Objective To evaluate and select a dispersant with superior anti-flooding performance for titanium dioxide dispersion in a coil coating system, by conducting a comparative study against the competitive dispersant 2311.   2.Experimental Plan The dispersants are to be incorporated into a polyester resin system to prepare color pastes. The state of these pastes will be observed after standing. Subsequently, the pastes will be let down into paints. Draw-down panels will be prepared and subjected to rub-up tests to evaluate color difference.   3.Results and Discussion 3.1 Procedure According to Table 1 below, prepare separate white and black color pastes (using AJK 6503 and the competitor 2311 for the white pastes, and AJK 6040 for the black paste). Measure the viscosity after grinding is complete. Prepare the gray paint according to Table 2. Perform a rub-up test on the draw-down panel and measure the color difference of the rubbed area using a colorimeter. Place the paste sample in a 60°C oven for 3 days for observation. 3.2 Performance Testing   3.2.1 Experimental Formulation   Table1 Black & White Monochrome Formulations   White paste Black paste Remarks polyester resin 30 60 Wanbang 3871 solvent 8.5 27 Xylene dispersant 1.5 3 6503/2311 6040 titanium dioxide 60   Lomon R996 Carbon black   10 Mitsubishi MA100 Total 100 100     Prepare the paste according to the formulation in Table 1. Add glass beads with a diameter of 3 mm at a 1.2:1 bead-to-paste mass ratio. Place the mixture in a shaker for dispersion and grind until the fineness is ≤ 5 μm.   Table 2. Formulation for Let-down of Black & White Monochrome Pastes   Amount Remarks Polyurethane Resin 50 3871 Amino Resin 15 5717 solvent 13 Xylene White paste 20   6040 black past 2   Total 100   Mix the components uniformly according to Table 2 to prepare the gray paint.   3.2.3 Results and Discussion   Color Paste Comparison mpa.s（25℃） White paste   competitor 2311 AJK6503 Viscosity 1178 1226 Fineness ≤10 μm ≤ 10 μm Anjeka dispersant 6503 shows viscosity reduction performance essentially equivalent to that of the reference dispersant 2311.   at 60°C for 3 days     Comparison of Rub-up Tests on Draw-down Panels: ∆E Reference 2311 White Paste + AJK 6040 Black Paste AJK 6503 White Paste + AJK 6040 Black Paste Initial Rub-up Color Difference 2 1.4 Rub-up Color Difference After Heat Aging 2.2 1.5 Color Difference Before and After Heat Aging 0.78 1.6   6503: Before/After Heat Aging        2311: Before/After Heat Aging                                Anjeka6503 exhibits a smaller rub-up color difference both before and after heat aging compared to the competitive product 2311. Although reference sample 2311 shows a slightly smaller color difference before and after heat aging, severe flooding (whitening) was observed on the panel surface in both cases.   Anjeka Dispersant                                      Reference: 2311 No delamination or flooding observed.      Severe Flooding   4. Conclusions Testing demonstrates that in the coil coating system, the white paste prepared with Anjikang dispersant Anjeka 6503 and the black paste prepared with Anjeka 6040 exhibit excellent viscosity reduction and outstanding stability against pigment flooding.

Anjeka Experimental Report (No：2025103101) Anjeka4420 Project: Dispersant Comparison Category: Dispersant Testing Personnel: R&D Department Date Submitted: May 28, 2025 1. Objective Comparison of Anti-Sag Performance in Acrylic Emulsion: Version 4420 with Different Solvent Versions.   2. Experimental plan 2.1 Directly incorporate varying proportions of 4420 into the emulsion, mix thoroughly, and test for sagging. 2.2 First prepare a 50% pre-slurry of 4420, then add it to the emulsion and test for sagging.   Required Materials: 1. Acrylic emulsion: Double bond DB3422 2. Anjeka 4420 in three solvent versions (NMP/NBP/DMSO) 3. Solvent: BCS 4. Deionized water   Required instruments: 1. Flow hanging instrument   3.Result and Discussion   3.1Procedure 1. After adding different versions of 4420 to the emulsion according to the formulation in Table 1 below, manually mix thoroughly and test the sag thickness. 2. Prepare different versions of the 4420 pre-gel paste according to the formulation in Table 2. Then, following the formulation in Table 3, add the pre-gel paste to the emulsion. Disperse the mixture at 800 rpm for 5 minutes using a high-speed disperser. Finally, measure the sag resistance of the resulting material.   3.2 Performance Testing   3.2.1 Experimental Formulation   Table 1. Formulation for 4420 Additive 4420 content 0.5% 1% 2% emulsion 100 100 100 4420 0.5 1 2   Table 2.4420 Pre-gel Paste Formulation   4420 BCS Deionized water Amount 5 3 2   Table 3.4420 Pre-gel Paste Addition Formulation 4420 content 0.5% 1% 2% emulsion 100 100 100 Pre-gel Paste 1 2 4   3.2.2 Result and Discussion   Comparison of Sag Resistance (μm):    4. Conclusions   1.All three Anjeka 4420 variants demonstrate significant anti-sag performance in this system. When added directly, the NBP-based version shows the best effect. When added as a pre-gel paste, the DMSO-based and NMP-based versions perform similarly, both outperforming the NBP-based version.   2.For both the DMSO-based and NMP-based versions, adding them as a pre-gel paste provides a significantly better anti-sag effect compared to direct addition.    

Anjeka Experimenteel Rapport (Nr.: 2025052701)           Anjeka Dispergeermiddel Project: Vergelijking van Dispergeermiddelen Categorie: Testen van Dispergeermiddelen Personeel: R&D Afdeling Datum ingediend: 28 mei 2025   1. Doelstelling De effectiviteit van verschillende dispergeermiddelen te vergelijken in het reduceren van de viscositeit in een oplosmiddelvrij, op polyetherpolyol gebaseerd vulpasta-systeem met gemalen calciumcarbonaat (GCC).   2. Procedure Bereid individuele pasta's met behulp van de volgende Anjikang dispergeermiddelen: 6500 6402 (100%) 802 6501A 6976 6860 Vergelijk de viscositeiten van de resulterende pasta's om de prestaties van de dispergeermiddelen te evalueren.   3. Resultaat en Discussie   3.1 Methode Bereid de polyetherpolyolpasta volgens de formulering en het proces beschreven in Tabel 1. Meet de viscositeit nadat de pasta is afgekoeld tot kamertemperatuur.   3.2 Prestatie Testen   3.2.1 Formulering   Tabel 1. Formulering van Polyetherpolyol Pasta   Hoeveelheid Opmerking Polyetherpolyol 34.5 PPG-3000 Dispergeermiddel 0.5 Anjeka Dispergeermiddel Gemalen Calciumcarbonaat 65 600 - 800 mesh Totaal 100       Voeg volgens de formulering in Tabel 1 de polyol en het dispergeermiddel toe aan het mengvat. Begin met mengen bij 500 rpm gedurende 5 minuten. Voeg langzaam de vulstof toe aan het mengsel, verhoog vervolgens de snelheid tot 2500 rpm en dispergeer gedurende 10 minuten. Zodra de temperatuur van het mengsel is gedaald tot kamertemperatuur, meet dan de uiteindelijke viscositeit.   3.2.2 Resultaat en Discussie   Viscositeitsvergelijking: Mpa.s (28°C) Blank Anjeka 6500 Anjeka 6402A (100%) Anjeka 802 Anjeka 6501A Anjeka 6976 Anjeka 6860 Viscositeit 79028 8283 12853 11187 19851 14329 19804 Uiterlijk na 12 uur bij RT Geen Vloei Vloei Vloei Vloei Geen Vloei Geen Vloei Geen Vloei bij 60°C gedurende 2 dagen   6950 8426 6903 10902 7522     33932     geen sedimentatie Waterscheiding en Sedimentatie Waterscheiding en Sedimentatie Waterscheiding en Sedimentatie Waterscheiding en Sedimentatie geen sedimentatie   4. Conclusie Alle geteste Anjikang dispergeermiddelen vertoonden een effectieve viscositeitsreductie in dit systeem. Anjikang 6500 vertoonde de beste prestaties en was het meest effectief in het reduceren van de viscositeit in de op polyetherpolyol gebaseerde GCC vulpasta.

Formule voor een harsvrije kleurpasta in een n-Butanol-systeem bereid met Anjeka Dispergeermiddel       Titaandioxide R996 Roet MA100 Organisch Rood 254 Ftalocyanineblauw 15:4 Ftalocyaninegroen PG7 Opmerking Oplosmiddel 24 55 55 68 63 n-Butanol Dispergeermiddel 6 15 15 10 12 Anjeka6045 Anjeka6881 Anjeka6860 Pigment 70 30 30 20 25   Totaal 100 100 100 100 100       Nadat het materiaal mengsel was bereid, werden glazen kralen met een diameter van 2 mm (1,5 keer de massa van de pasta) toegevoegd en werd het mengsel gedispergeerd door 2 uur te schudden.   Stabiliteitstest van een harsvrije kleurpasta in een n-Butanol-systeem bereid met Anjeka Dispergeermiddel       Initiële fijnheid ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 Fijnheid na 7 dagen ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10 ＜10   De harsvrije kleurpasta in n-Butanol, bereid met Anjeka dispergeermiddel, vertoonde minimale veranderingen in viscositeit en deeltjesgrootte na hitteveroudering, wat een uitstekende opslagstabiliteit aantoont. Dispergeermiddel 6860 is meer geschikt voor anorganische pigmenten, terwijl 6045 en 6881 veelzijdiger zijn.