Styrene-Acrylic Dispersion AF-535/545 is a water-based dispersion of styrene-acrylic copolymer, designed for the production of water-based paints. It has a solid content of 50±1%, pH 7.5–9.0, a minimum film-forming temperature (MFT) of ≤5°C, and a viscosity of 500–2000 mPa·s. This dispersion is characterized by excellent adhesion and weather resistance, making it ideal for architectural paints, facade coatings, and primers. The styrene‑acrylic copolymer combines the flexibility of styrene units with the toughness of acrylic monomers, providing UV stability and resistance to temperature fluctuations. When blended with pigment pastes, the dispersion forms a uniform emulsion that delivers high hiding power and consistent colour distribution. Typical applications include exterior façade paints, decorative emulsions, and clearcoat systems for wood and metal, where rapid drying and low susceptibility to spotting are required. It is compatible with common additives such as biocides, anti‑fungals, plasticisers, and viscosity modifiers, as well as fillers like talc, marble dust, or microspheres. For optimal performance, dry ingredients should be pre‑dispersed in water at 20‑30 °C, followed by gradual incorporation of AF‑535/545 under continuous stirring to prevent localized thickening. In standard paint formulations the dispersion is used at 10‑20 % of the total dry weight, providing the desired film density and flexibility without compromising adhesion. The product remains stable for more than 12 months when stored in a sealed container at 5‑25 °C; it can be diluted with de‑ionised water to adjust viscosity, with pH adjustments made using small amounts of acid or base as needed. The low MFT enables coating application in cold climates without risk of film cracking, a valuable attribute for projects in northern regions. Global Optimals offers this dispersion as an official distributor in Uzbekistan.
| Тв. вещество | 50±1% |
| pH | 7.5–9.0 |
| MFT | ≤5°C |
| Вязкость | 500–2000 мПа·с |
IBC 1000 kg / Drums 200 kg
The styrene‑acrylic dispersion AF‑535/545 should be stored in a dry, well‑ventilated area at temperatures between +5 °C and +25 °C, protected from direct sunlight and extreme temperature fluctuations. When the packaging remains intact, the typical shelf life is about 12 months. Handling requires protective gloves and safety glasses, avoiding skin and eye contact, and ensuring adequate ventilation. During transport and storage, inspect the containers for any damage, leaks, or condensation buildup to maintain product integrity.
