Styrene-Acrylic Emulsion (Styrene Acrylate Emulsion)
Product Introduction
Product Name: Styrene-Acrylic Emulsion, commonly referred to as Styrene-Acrylic.
Composition: Water-based copolymer emulsion synthesized by emulsion polymerization of styrene and acrylic monomers. It is an environmentally friendly, non-toxic, odourless waterborne polymer dispersion without organic solvents.
 Key Properties
- Appearance: Milky white to off-white homogeneous liquid with slight blue tint
- Solid content: 40–50% (adjustable for different grades)
- pH value: 7.0–9.0
- Viscosity: 50–2000 mPa·s (varies by formulation)
- Glass transition temperature (Tg): Customizable, normally -10°C ~ +30°C
- Particle size: 0.1–0.3 μm
- Features: Good film-forming property, high hardness, excellent water resistance, alkali resistance, weather resistance, pigment compatibility and adhesion to substrates.
Advantages
Environmentally friendly waterborne system, low VOC, meets environmental protection requirements.
Balanced hardness and flexibility after film formation.
Outstanding weather resistance, resistant to UV radiation, not easy to yellow for exterior applications.
Good pigment wetting and dispersing capacity, compatible with inorganic pigments such as rutile titanium dioxide.
Excellent alkali resistance, suitable for cement and masonry substrates.
Good adhesion on concrete, plaster, metal, paper and plastic surfaces.
Limitations
Freeze-thaw stability needs to be protected; freezing will cause irreversible emulsion breakage.
The film is not water-resistant before full curing.
Not recommended for long-term immersion in strong acid and strong alkali environments.
Main Applications
1. Water-based architectural coatings: Exterior wall latex paint, interior wall paint, waterproof primer, cement-based coating.
2. Industrial coatings: Waterborne protective coatings, anti-corrosion primer for metal surfaces.
3. Adhesives & binders: Paper coating, textile coating, non-woven fabric binder.
4. Ink: Water-based printing ink for paper and packaging.
5. Other fields: Putty, sealing slurry, surface sizing agent.
Storage & Handling
- Store in sealed containers at 5–35°C, avoid direct sunlight and freezing.
- Shelf life: 6 months under proper storage conditions.
- Keep away from strong oxidants, strong acids and strong alkalis.
- Stir gently before use.
Short version (for Alibaba / product brief)
Émulsion styrène-acrylique
Styrene-acrylic emulsion is a water-based copolymer made from styrene and acrylic monomers via emulsion polymerization. It features low VOC, good film forming, excellent weather resistance, alkali resistance and pigment compatibility. Widely used in exterior & interior latex paint, water-based industrial coatings, paper coating and water-based ink. Custom Tg and solid content available.