LUSTERING AGENT COMPOSITION

PROBLEM TO BE SOLVED: To obtain the subject composition having a lustering property and not showing a crack of a film after drying the same by specifying a breaking strength and an elongation at its break of the dried film of a lustering agent composition containing a water insoluble polymer emulsion. SOLUTION: This lustering agent composition is obtained by setting >=500 g/25 mm breaking strength and 50-300% elongation at the break of the dried film of the lustering agent composition containing (A) a water insoluble polymer emulsion. The dried film of the lustering agent composition means a film obtained by treating (coating) of e.g. a floor, or the like, with the lustering agent by using a method such as applying, sprinkling, spraying, immersing method or the like, and then drying. As the component (A), e.g. a styrene-based resin emulsion, a styrene/acrylic resin emulsion and an acrylic resin emulsion can be cited. In the emulsion, it is possible to contain a hydrosol emulsion, a purified water, a polyolefin wax, a surfactant, a hydrophilic solvent, or the like, desides the component (A) as desired.