Four floor cleaners were prepd. by dissoln. of concd. surface active agents in distilled, or hard water (concn. 2.5-10.0% by mass) and studied for stability, viscosity, turbidity, particle size, foam-forming properties, the ability to emulsifying fat deposits and soly. in water. The increase in the concn. of active substances resulted in a structural change of the bulk phase and increasing the viscosity. An improvement in foam-forming properties and the ability to emulsify fat deposits, limited their safety (impact on the skin) took place. An increase in turbidity of their solns. in hard water was obsd. in presence of Mg and Ca ions where large aggregates composed of water insol. soaps and a hydrophobic plant ext. and deposit over the wood surface were formed.