Preparation and properties of alkyd–acrylic hybrids have been studied. Hybrids with different
alkyd–acrylic ratios and acrylic parts were prepared via free radical polymerization of acrylic monomers
in a presence of an unsaturated alkyd resin using emulsion polymerization technique. The binders were
characterized according to their solid content, conversion, viscosity, pH and particle size. Evidence on
formation of true copolymer was obtained via NMR spectroscopy and molecular weight and glass transition
temperature measurements, as well as via performance studies. The performance evaluation was
focused on investigation of drying, penetration and water repellency ability, as well as on film formation
and surface topography studies. The binders were compared to references of an alkyd emulsion, acrylic
latex and a blend made of them. The results showed that alkyd–acrylic hybrids with synergistic and
improved properties can be prepared.