Water-based acrylic emulsions (water based acrylic emulsion) are a cornerstone of the modern coating industry, widely recognized for their environmental benefits and versatile applications. As regulations on volatile organic compounds (VOCs) become stricter globally, waterborne acrylic resin has emerged as a preferred alternative to solvent-based coatings. These emulsions are composed of discrete polymer particles dispersed in a continuous water phase, offering low toxicity, ease of application, and excellent performance across a broad range of substrates.
The versatility of water based acrylate resin lies in its ability to be tailored for various hardness levels, adhesion properties, and durability requirements. Unlike solvent-based systems, water-based acrylic emulsions are free from harmful solvents, making them safer for both users and the environment. Their low VOC content ensures compliance with international environmental standards, such as those set by the EPA and OSHA.
One of the key advantages of waterborne acrylic resin is its rapid drying time and excellent film-forming properties. These emulsions can be formulated to provide high gloss, UV resistance, and exceptional weatherability, making them ideal for exterior applications. Additionally, water based acrylic emulsion exhibits superior flexibility and adhesion to diverse surfaces, including wood, metal, concrete, and plastics.
Despite their many benefits, water based acrylate resin may require careful formulation to achieve optimal performance. Factors such as polymer composition, particle size, and additives significantly influence the final properties of the coating. Blending waterborne acrylic resin with other polymers, such as polyurethane dispersions (PUDs), can further enhance performance and reduce costs.
Waterborne acrylic resin represents a sustainable and high-performance solution for modern coating needs. With its eco-friendly profile, versatility, and superior properties, water based acrylate resin is paving the way for a greener future in the coatings industry. As technology advances, the applications and formulations of water-based acrylic emulsion will continue to expand, meeting the demands of diverse industries worldwide.
| Apprearance |
Milky white |
| Solid Content(%) |
30-65% |
| pH(25C°) |
7.5 - 9.5 |
| Viscosity(25C°，Mpa.s) |
<1000 |
| Modulus(Mpa) |
NM |
| Elongation% |
NM |
| Tensile Srtrength(Mpa) |
NM |
Water based acrylic emulsion offers rapid drying, early hardness development and outstanding adhesion to concrete, wood, metal and plastic substrates. It can be pigmented to almost any colour, accepts a wide range of rheology modifiers and can be spray-, roll- or brush-applied with minimal odour. When a water based acrylate resin is formulated into hygiene coatings, it delivers single-pack convenience, low odour and excellent chemical resistance to common sanitizers and peroxide cleaners.
Details of Water based Acrylic Emulsion Backbone Polymer design begins with the selection of appropriate (meth)acrylic monomers—methyl methacrylate for hardness, butyl acrylate for flexibility, styrene for water resistance and functional monomers such as acrylic acid, hydroxyethyl acrylate or glycidyl methacrylate to enable cross-linking. The monomer mix is emulsion-polymerised in water under controlled temperature and pH using anionic or non-ionic surfactants. The resulting waterborne acrylic resin contains discrete polymer particles 50 – 400 nm in diameter that remain colloidally stable at 5 – 30 °C. Post-production, the latex is neutralised with ammonia or an amine to pH 8 – 9, filtered and filled under nitrogen.
Water based acrylic emulsions can be classified by: Solubilisation mechanism – anionic, non-ionic or cationic surfactant-stabilised. Copolymer type – pure acrylic, styrene-acrylic or vinyl-acrylic. Functional groups – self-cross-linking (N-methylolacrylamide), hydroxyl-functional for 2 K isocyanate cure, epoxy-functional for epoxy-silane cure, or carboxyl-functional for aziridine or carbodiimide cure.
Thermoplastic Acrylics: These water based acrylate resin systems dry through water evaporation, forming a durable film without crosslinking. They are ideal for architectural and decorative coatings. Thermosetting Acrylics: Crosslinked with external agents, these waterborne acrylic resin systems offer enhanced chemical and abrasion resistance, suitable for industrial applications.
Key Benefits: Environmental Safety: Water based acrylate resin contains minimal VOCs, aligning with global eco-friendly standards. Adhesion: Excellent adhesion to a wide range of substrates, including porous and non-porous surfaces. Durability: Resistant to UV radiation, yellowing, and weathering, making it suitable for outdoor applications. Ease of Use: Water-based acrylic emulsion can be applied via brush, roller, or spray, with quick drying times and easy cleanup. Types of Waterborne Acrylic Resin
Hygiene Coatings A waterborne acrylic resin is widely used as the primary or co-binder in “hygiene” wall and floor coatings for hospitals, pharmaceutical plants, restaurants and nursing homes. The coating must be tough, glossy, easy to clean and dry rapidly; a water based acrylic emulsion meets all of these requirements while remaining low-odour and low-VOC.
Thermal Reflective Coatings When a water based acrylate resin is pigmented with hollow ceramic microspheres or infrared-reflective pigments, it forms a thermal reflective coating for exterior roofs and tanks. The same waterborne acrylic resin can also be engineered to provide waterproofing so that the coating both reflects solar radiation and prevents water ingress.
Sealers for Concrete A penetrating water based acrylic emulsion sealer can be formulated at low solids (15 – 25 %) to migrate deep into concrete pores, thereby dust-binding and providing a hydrophobic seal. A higher-solids water based acrylate resin version can then be applied as a pigmented base-coat before subsequent polyurethane or epoxy topcoats.
Commercial Floor Coatings 1.One-component systems For light-duty warehouse, retail or office floors, a single-pack waterborne acrylic resin floor coating offers rapid drying (touch-dry in 30 minutes, re-coat in 2–3 hours), low odour and excellent abrasion resistance. The coating can be applied directly to clean, porous concrete or over existing sound coatings. Decorative coloured flakes or quartz can be broadcast into the wet film for enhanced aesthetics.
2.Two-component systems Where heavy forklift or vehicular traffic is expected, a two-component water based acrylate resin cross-linked with a water-dispersible polyisocyanate or epoxy silane delivers long-term durability comparable to waterborne polyurethane systems at a lower cost. A typical system consists of a water-based epoxy primer, optional epoxy intermediate build-coat, and a pigmented, cross-linked waterborne acrylic resin topcoat at 1.5 – 2.0 mil DFT.
Summary Whether the goal is to meet emerging VOC regulations, protect concrete from early deterioration, or deliver hygienic, bacteria-resistant surfaces, a water based acrylic emulsion provides the formulator with unmatched flexibility. It can be designed soft and flexible or hard and rigid, pigmented or clear, cross-linked or thermoplastic. A water based acrylate resin is compatible with a wide range of waterborne polyurethane dispersions, epoxy emulsions and silane-modified resins, allowing tailor-made solutions for every substrate and environment. Like water based polyurethane dispersion, waterborne acrylic resin is here to stay as the sustainable backbone of tomorrow’s high-performance coatings.
Waterborne Acryil Emulsion Binder is stable when stored at 20°C for 6 months after delivery date. The recommended temperature range is 5~30 oC. Freezing or storage at higher temperature than 30°C, can affect the viscosity or the average particle size and finally lead to a sedimentation or coagulation. A contamination with bacteria, fungi or algae can damage the product irreversible
