Water Based Metallic Paint Formulations for Automotive
Water-based metallic automotive coatings present significant technical hurdles in achieving the performance of solvent-based systems. Current formulations must maintain particle suspension stability during storage while delivering consistent film formation, with metallic flake orientation critical for appearance. Field data shows that waterborne systems typically require precise control of application conditions, with relative humidity variations of ±10% significantly impacting finish quality.
The fundamental challenge lies in balancing the competing requirements of storage stability, application rheology, and final film properties while maintaining environmental compliance and cost effectiveness.
This page brings together solutions from recent research—including hydroxyl-controlled polyurethane dispersions, novel rheological control systems, and multi-component polymer matrices with pre-coated metal bases. These and other approaches focus on achieving consistent quality in production environments while meeting increasingly stringent environmental regulations.
1. Waterborne Polyurethane Topcoat with Controlled Hydroxyl Content and Multi-Step Particle-Milling Process
BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, 2025
A high-gloss waterborne polyurethane automotive topcoat that achieves superior adhesion and gloss while maintaining environmental performance. The coating combines a hydroxyl-rich polyurethane dispersion with a hydroxyl-rich polyurethane dispersion, each with a controlled hydroxyl content, to create a uniform blend. The dispersion is formulated with dispersant, wetting agent, defoamer, leveling agent, and film-forming aid, and is processed through a multi-step dispersion and particle-milling process to achieve the desired particle size distribution. The resulting dispersion is then formulated into a waterborne polyurethane dispersion, which is cured using a two-component system. The dispersion is then formulated into a waterborne polyurethane dispersion, which is cured using a two-component system.
2. Water-Based Metallic Paint Formulation with Solvent and Polymer Blend for Plastic Automotive Parts
YATU ADVANCED MATERIALS CO LTD, Yatu Advanced Materials Co., Ltd., 2024
Water-based metallic paint for automotive interior and exterior decoration that achieves comprehensive application on plastic automotive parts without thinning, while maintaining excellent adhesion, water resistance, and mechanical properties. The paint formulation employs a unique blend of solvents and polymers that enable continuous spraying on automated assembly lines, while its water-based formulation reduces VOC emissions and environmental impact compared to traditional solvent-based coatings. The paint's performance characteristics include excellent adhesion, water resistance, recoatability, and mechanical properties, making it suitable for automotive interior and exterior decoration applications.
3. Water-Based Paint Composition with Pre-Coated Color Metal Base and Polymer Matrix
SHANGHAI YOOGLE METAL TECHNOLOGY CO LTD, 2024
A water-based paint with a pre-coated color metal base for automotive applications, featuring high weather resistance, deep drawing resistance, and high gloss. The paint composition comprises a polymer matrix, pigment, cross-linking agent, leveling agent, defoaming agent, wetting and dispersing agent, substrate wetting agent, co-solvent, and deionized water. The pre-coated metal base serves as a substrate for the paint, providing superior performance characteristics such as enhanced durability, resistance to environmental stressors, and improved aesthetic appearance.
4. Waterborne Polyurethane Paint Composition with Silicone, Epoxy, and Phosphate Ester Modifications
Huizhou Huiyang District Jiat Tai Coating Co., Ltd., HUIZHOU HUIYANG JIATAI PIGMENT CO LTD, 2022
A waterborne polyurethane high-gloss paint for automotive and industrial applications that achieves exceptional performance characteristics including fast curing, high gloss, excellent mechanical properties, and chemical resistance. The paint formulation comprises a waterborne polyurethane resin, a silicone-modified emulsion, an epoxy-modified emulsion, and a phosphate ester-modified emulsion. The formulation is formulated to provide superior abrasion resistance, neutral salt spray resistance, and thermal stability while maintaining high gloss and hardness levels.
5. Water-Based Paint Formulation with Novel Dispersant and Modified Ethyl Acrylate
HUBEI JINGHAITAI BUILDING MATERIAL TECH CO LTD, 2021
A water-based paint formulation and preparation method that addresses the common issue of paint surface blistering during drying. The formulation incorporates a novel dispersant that enhances paint surface smoothness and gloss while maintaining excellent mechanical strength. The dispersant enables controlled dispersion of the paint components, preventing premature bubble formation during drying. The formulation also incorporates a modified ethyl acrylate that significantly improves paint mechanical properties.
6. Water-Based Automotive Paint Composition with 4H-Ketone and Organosilane Compounds
Wenzhou Xinruixiang Technology Co., Ltd., WENZHOU XINRUIXIANG TECHNOLOGY CO LTD, 2020
Water-based automotive decorative paint with high hardness and UV stability, comprising: 10-20 wt% 4H-ketone, 5-10 wt% zirconium diisopropoxide bis(2,2,6,6-tetramethyl-3,5-pentanedione acid), 3-5 wt% 3-methacryloxypropylmethyldimethoxy silane, 5-10 wt% N,N-diethyl-3-aminopropyltrimethoxysilane, 2-5 wt% tris(2,2,6,6-tetramethyl-3,5-heptanedione acid) titanium complex, 0.5-2 wt% trimethylsilyl 2-(fluorosulfonyl) difluoroacetate, 10-20 wt% 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, and 10-20 wt% propylene glycol methyl ether acetate. The paint exhibits a high hardness of 3H and maintains its hardness even after prolonged UV exposure.
7. Water-Based Metallic Paint with Acrylic Resin Dispersion WH26-1 for Enhanced Spraying and Storage Stability
ANHUI DENGWANG CHEMICAL CO LTD, 2020
Water-based metallic paint with improved spraying performance and long storage life at constant temperature, achieved through a water-based acrylic resin dispersion. The paint comprises a water-based acrylic resin dispersion WH26-1, which combines low price, safe use, energy savings, and reduced environmental pollution. The dispersion formulation enables consistent performance and extended shelf life when stored at constant temperature, making it suitable for industrial applications.
8. Waterborne Polyurethane Composition with Specific PTMEG to Hydroxyfluorosilicone Oil Ratio and Anti-Scratch Additives
PINGXIANG INNOTACK CO LTD, 2020
A waterborne polyurethane composition for automotive paint protection films that addresses the challenges of traditional polyurethane coatings. The composition combines high-performance polyurethane emulsion, anti-scratch additives, and a specific mass ratio of 3-methyl polyethylene oxide (PTMEG) to hydroxyfluorosilicone oil. This formulation enables a film that is both durable and flexible, with enhanced scratch resistance and peel strength. The composition is formulated in a waterborne polyurethane system, making it suitable for automotive applications where waterborne formulations are preferred.
9. Water-Based Auxiliary Material with Dimer Acid-Modified Organic Bentonite for Thixotropic Control in Metal and Pearl Paints
YATU HIGH-TECH MATERIALS CO LTD, Yatu Advanced Materials Co., Ltd., 2019
A water-based auxiliary material for improving workability and uniformity of water-based metal and pearl paints. The material, comprising a thixotropic agent derived from dimer acid-modified organic bentonite, enables precise control of paint flow and deposition during application. By reducing electrostatic interactions between the paint and surface, the material prevents uneven deposition of pearl flakes and maintains their uniform arrangement. This enables consistent, high-quality finishes with improved workability and surface characteristics.
10. Automotive Paint with Nanostructured Metal-Polymer Matrix for Enhanced Surface Hardness and Gloss
QINGYUAN JIAXIN PAINT CO LTD, Qingyuan Jiaxin Coatings Co., Ltd., 2019
A high-gloss automotive paint with improved surface hardness through a novel nanostructured formulation. The paint combines nano metal particles with a specific polymer matrix to achieve enhanced hardness while maintaining superior gloss. The formulation enables the creation of ultra-hard coatings with high gloss retention, making it suitable for high-performance automotive applications.
11. Water-Based Roller Spray Paint with Acrylic Resin, Polyurethane, and Aluminum Pigment Composition
QINGYUAN XUANCHUN ENVIRONMENTAL PROT NEW MATERIALS CO LTD, 2019
A water-based roller spray paint for high-gloss, environmentally friendly coatings that can be used for metal parts. The paint combines acrylic resin, water-based polyurethane, aluminum pigment, transparent color paste, coupling agent, and surface slip agent in specific weight ratios. This formulation enables water-washability, rapid film formation, improved impact resistance, and enhanced metallic luster through the addition of water-based polyurethane and aluminum pigment. The paint is formulated with diethylene glycol butyric acid and ionized water to achieve optimal performance characteristics.
12. Water-Based Magnesium Oxide Coating with Synergistic Polyurethane-Epoxy Resin Blend
CHONGQING XINYI NEW MATERIAL TECH CO LTD, 2019
Water-based magnesium oxide coating with enhanced scratch resistance and superior gloss retention. The coating combines a synergistic blend of waterborne polyurethane and epoxy resin, along with deionized water as the solvent, to achieve superior scratch resistance and gloss retention properties. The formulation incorporates a proprietary combination of additives that work in conjunction to provide enhanced durability and resistance to environmental impacts like road debris and water contamination.
13. Waterborne Acrylic Resin Composition with Controlled Amino Resin Concentration Ratio
UNIV FUYANG NORMAL, 2019
A waterborne acrylic resin/baking paint formulation that improves its performance through precise control of amino resin concentration. The formulation achieves enhanced hardness, improved water resistance, and enhanced impact resistance through the optimized ratio of waterborne acrylic resin to amino resin. The ratio of 1:4 is found to be optimal for achieving the desired balance of properties, including impact resistance, adhesion, and water resistance. This formulation enables the production of high-performance coatings with improved performance characteristics compared to conventional waterborne acrylic resins.
14. Water-Based Wheel Hub Paint with Acrylic Dispersion and Isooxyester Auxiliary Agent
DANDONG ANBANG COATING CO LTD, 2019
Water-based wheel hub silver paint for automotive wheels that addresses environmental concerns through its environmentally friendly composition. The paint combines water-based acrylic dispersion, methyl-based high imino resin, fully methyl-based amino resin, water-based silver powder, and pearl powder. A closed isooxyester auxiliary film-forming agent enhances the paint's performance by improving adhesion and resistance to environmental conditions. This formulation provides freeze-thaw resistance, no flatulence, and a six-month color stability, making it suitable for production, transportation, construction, and storage in winter conditions.
15. Water-Based Two-Component Polyurethane Aluminum Powder Paint with Co-Solvent and Curing Agent
GUANGZHOU GIANT MATERIAL TECHNOLOGY CO LTD, 2019
Water-based high-gloss two-component polyurethane aluminum powder paint for automotive applications, comprising a water-based aluminum silver paste and co-solvent, with a curing agent component. The paint combines a water-based aluminum silver paste with a co-solvent to create a high-gloss finish, while the curing agent component enables fast drying and high gloss characteristics. The paint also incorporates an alignment aid and a curing agent to enhance the powder's dispersion and curing performance.
16. Water-Based Paint with Protective Film-Coated Aluminum Pigments and High-Vat Methyl Amino Resin
WUHAN TONGFA SCIENCE AND TECHNOLOGY CO LTD, 2019
Water-based paint technology that enhances gloss while maintaining safety and performance. The paint combines a water-based formulation with a novel approach to protect aluminum powder pigments. The formulation comprises a bottom solution containing the pigments, isopropanol, and a high-vat methyl amino resin. The bottom solution is heated to 60°C in a water bath, creating a protective film on the aluminum powder surface. This film prevents hydrogen evolution and maintains the paint's gloss while providing excellent adhesion and durability.
17. Water-Based Automobile Paint with Solvent-Free Formulation and Enhanced Durability Properties
XU HAO, 2018
Water-based environmentally friendly automobile paint that combines high gloss, scratch resistance, and impact durability with excellent weather resistance, acid resistance, and alkali resistance. The paint formulation features a unique blend of color fillers and additives that deliver superior performance characteristics while minimizing environmental impact. The paint formulation is achieved through a simplified processing sequence that eliminates the need for solvents, resulting in a more environmentally friendly and sustainable automotive coating solution.
18. Aqueous Metal Coating with Metal Salt, Surfactant, and Polymer for Controlled Precipitation and Polymerization
LUAN QINGYANG, 2018
Aqueous metal coating for water-based applications that enhances corrosion resistance and durability through controlled surface chemistry. The coating comprises a water-based composition containing a metal salt, a surfactant, and a polymer, which forms a thin film on metal surfaces through controlled precipitation and polymerization processes. The coating provides improved corrosion resistance and surface finish characteristics compared to conventional aqueous coatings.
19. Aqueous Polyester Resin Composition with Specific Additive Ratios for Enhanced Hydrolysis Resistance and Storage Stability
NANTONG ITALMATCH CHEMICALS CO LTD, 2017
A new type of aqueous polyester resin for waterborne coatings that addresses the limitations of traditional polyester resins. The resin combines a novel blend of raw materials with specific ratios of additives to achieve improved hydrolysis resistance and storage stability. The formulation includes a balance of leveling agents, neopentyl glycol, polymer emulsion, hexahydrophthalic acid, maleic anhydride, and trimellitic anhydride, with specific concentrations of methoxyphenol, dimethylethanolamine, and dry crosslinking agent. This composition enables the production of a waterborne polyester resin with enhanced performance characteristics for coatings, particularly in applications requiring high gloss, adhesion, and impact resistance.
20. Water-Based Metallic Paint Emulsion with Vinyl and Hydroxyl Group Monomer Blend
Haolisen Paint (Shanghai) Co., Ltd., HLS PAINT CO LTD, 2017
A water-based metallic paint emulsion that addresses the limitations of conventional emulsions in achieving sufficient water resistance for metallic coatings. The emulsion combines a specially formulated emulsifier blend with a novel combination of vinyl monomers and functional additives. The emulsion preparation process involves a unique combination of emulsifier components, including a vinyl monomer with a specific vinyl group structure and a functional monomer with a hydroxyl group. This blend enhances water resistance while maintaining the paint's ability to form a protective film on metal surfaces.
21. Waterborne Polyurethane Automotive Coating with Integrated Epoxy Resin Components
ZHIHAI YAN, 2017
Waterborne polyurethane-based automotive coating that combines the benefits of epoxy resin-modified polyurethane with waterborne technology. The coating comprises a waterborne polyurethane matrix with added epoxy resin components, providing improved mechanical properties, adhesion, and chemical resistance compared to conventional waterborne polyurethane coatings. This hybrid formulation enables the development of a wear-resistant and scratch-resistant waterborne automotive coating that addresses the environmental and performance challenges associated with traditional waterborne polyurethane-based coatings.
22. Aqueous Automotive Paint with Water-Soluble Polyurethane Resin and Cross-Linking Agents for Abrasion Resistance
WEICHENG SONG, 2017
Aqueous high-gloss abrasion-resistant automotive paint that replaces traditional solvent-based paints with a water-based system. The paint combines a water-soluble polyurethane resin with polyether glycols, methoxysiloxane, and polyether polyols, which polymerize to form a durable, abrasion-resistant coating with improved gloss retention. The system achieves enhanced abrasion resistance through the incorporation of unsaturated carboxylic acids and glycidyl esters, which facilitate cross-linking and polymerization. The resulting paint provides superior scratch resistance, hardness, and adhesion properties while maintaining excellent gloss and color retention.
23. Waterborne Automotive Paint with Trifunctional Aziridine Crosslinking and Carboxyl-Hydroxyl Monomer System
Yatu Advanced Materials Co., Ltd., YATU HIGH-TECH MATERIALS CO., LTD., 2016
A waterborne automotive paint that achieves superior performance through a novel two-component formulation combining aziridine crosslinking agents with carboxyl and hydroxyl groups. The formulation utilizes a trifunctional aziridine crosslinking agent that enables high crosslinking efficiency at lower temperatures compared to traditional amino resin crosslinking agents. The aziridine crosslinking agent is combined with a carboxyl and hydroxyl group-rich monomer system, where the monomers are prepared through radical copolymerization of methacrylic acid, hydroxyethyl methacrylate, and acetoacetoxyethyl methacrylate. The resulting paint exhibits excellent water resistance, gloss, and hardness while maintaining low VOC emissions. The formulation enables high-performance coatings with reduced solvent content, meeting the stringent environmental regulations for automotive coatings.
24. Water-Based Automotive Paint with Advanced Pigment and Surfactant System for High Gloss Finish
ZHENJIANG FANGZHOU TRANSPORT CO LTD, 2016
A water-based automotive paint that achieves high gloss finish without the environmental drawbacks of traditional solvent-based paints. The paint employs a novel formulation that combines advanced pigments with a proprietary surfactant system to achieve superior gloss retention while minimizing solvent usage and environmental impact. This water-based paint technology enables fast drying times, reducing production costs and environmental concerns compared to traditional solvent-based paints.
25. Water-Based Matte Silver Metallic Paint with Silver Particle Dispersion in Deionized Water
ZHAOQING CAIXIN DECORATION MATERIAL CO LTD, 2015
Water-based, environmentally friendly, matte silver metallic paint for industrial applications. The paint achieves improved gloss retention and surface finish characteristics through a novel waterborne formulation that overcomes traditional water-based paint limitations. The formulation combines a water-based binder with silver particles that are dispersed in deionized water, eliminating the water film break and pinhole defects associated with conventional water-based paints. The paint demonstrates superior gloss retention at 60° incidence angle compared to conventional waterborne matte finishes, making it suitable for industrial coatings requiring high-performance, environmentally responsible solutions.
26. Aqueous Alkyd Paint Composition with Oleic Acid, Tris-Hydroxyethyl Isocyanurate, and Hydrogenated Bisphenol A for Enhanced Corrosion Resistance and Stability
QIDONG CHUNJIANG POLYURETHANE CO LTD, 2015
Aqueous alkyd paint that addresses the limitations of traditional waterborne alkyd paints in metal equipment and automotive parts coating. The paint combines oleic acid, tris-hydroxyethyl isocyanurate, hydrogenated bisphenol A50-90, isophthalic acid, xylene, azelaic acid, and emulsifier to create a water-based alkyd resin that offers improved corrosion resistance, storage stability, and performance compared to conventional waterborne alkyd paints.
27. Water-Based Green Pearlescent Metallic Paint with Uniform Pigment Dispersion and Solvent-Free Resin System
ZHAOQING CITY CAIXIN DECORATION MATERIALS CO LTD, 2015
Aqueous green pearlescent metallic paint that achieves superior gloss retention and uniform pearl formation through a water-based formulation. The paint contains a high-performance resin, pigment, and additives that enable the production of pearlescent coatings without organic solvents. The pearlescent arrangement is uniform and free of pinholes, craters, or sagging. The paint exhibits excellent leveling properties, reducing the need for solvents in industrial applications where environmental concerns are paramount.
Get Full Report
Access our comprehensive collection of 27 documents related to this technology
