Acrylic dispersions
Acrylic dispersions are waterborne, colloidally stable dispersions of fine acrylic or styrene‑acrylic polymer particles, typically supplied as milky white liquids. They act as binders in a wide range of water-based systems, providing adhesion, flexibility, water and chemical resistance, as well as very good UV and weather resistance. Formulated with emulsifiers and/or polyurethane stabilizers, they can be designed with different glass transition temperatures (Tg), particle sizes and ionic character (anionic, cationic, nonionic) depending on the application.
Source
- petrochemical origin (acrylic/methacrylic monomers, styrene and other vinyl monomers)
- emulsion polymerization in water in the presence of emulsifiers and initiators
- post‑modification (coalescents, thickeners, neutralizing agents) to adjust rheology and film‑forming behavior
- industrial supply in bulk tanks, IBCs and drums as ready‑to‑use waterborne dispersions
Variations
- pure acrylic dispersions for high UV and exterior durability
- styrene‑acrylic dispersions for an optimized cost‑performance ratio
- soft (low Tg) and hard (high Tg) dispersions to control film flexibility and block resistance
- special low‑VOC, APEO‑free and food‑packaging‑compliant dispersions tailored to regulatory demands
Applications In The Industry
Adhesives and sealants industry
In the adhesives and sealants industry, acrylic dispersions are used as primary binders in waterborne dispersion, contact and pressure‑sensitive adhesives. They ensure excellent adhesion to paper, board, wood, textiles and many plastics, with a well‑balanced cohesion and elasticity profile. They are especially important in label, packaging, construction and assembly adhesives, offering low VOC emissions, low odor and easy processing on standard equipment.
Construction industry
In the construction industry, acrylic dispersions are used in interior wall paints, façade coatings, flexible waterproofing systems, tile adhesives and modified cementitious mortars. They enhance adhesion to mineral substrates, water resistance, freeze‑thaw stability and dust‑binding properties, while reducing cracking. By selecting appropriate dispersions, formulators can produce coatings with high vapor permeability, long‑term color retention and UV resistance.
Printing inks and printing industry
In the printing inks and printing industry, acrylic dispersions serve as waterborne binders in flexographic and gravure inks, as well as in overprint varnishes. They provide good adhesion to paper, board and selected plastic films, fast drying, rub resistance and stable viscosity during printing. With the right dispersion choice, gloss, transparency and print flexibility can be optimized, while keeping VOC emissions low and meeting packaging industry requirements.
Packaging converting industry
In the packaging converting industry, acrylic dispersions are applied in laminating adhesives for paper and films, barrier and protective coatings, and various functional layers (anti‑blocking, slip, heat‑seal coatings). They offer a good balance of adhesion, clarity and blocking resistance, with the possibility to formulate for low migration and food contact suitability when appropriate systems are used. Favorable rheology and fast film formation support high‑speed converting operations.
Paints and coatings industry
In the paints and coatings industry, acrylic dispersions are the main binders in decorative and industrial waterborne coatings for interior and exterior use. They provide high whiteness, good hiding power, washability, UV resistance and long‑term weatherability. Formulation flexibility (different Tg, polymer types and stabilizers) allows development of a wide product range, from economical wall paints to high‑performance façade and industrial coatings.
Paper industry
In the paper industry, acrylic dispersions are used for surface sizing and coating of paper and board, as well as in adhesives for layer bonding (back‑coatings, blister coatings). They improve smoothness, gloss, tear resistance and water repellence, together with ink and adhesive receptivity. Dedicated formulations enable precise control of absorbency, blocking resistance and foldability, which is critical for packaging and graphic grades.
Benefits Of Use
- waterborne technology with low VOC emissions and reduced environmental impact
- broad range of adhesion, mechanical and barrier properties through selection of polymer type and Tg
- good compatibility with fillers, pigments and additives for performance and cost optimization
- easy application with standard techniques (rolling, spraying, coating, printing) combined with fast drying and good storage stability
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