Abstract: A spraying apparatus adapted for blending liquids in a gaseous spray stream includes a gas nozzle that is adapted for discharging a gas jet to be directed at an object to be sprayed, and a plurality of liquid nozzles having suction outlets adapted for removal of liquid therefrom by aspiration, the liquid nozzles being mounted for disposing them relative to the gas jet to effect aspiration of liquid from their outlets together into the gas jet for spraying an object with the resulting spray mixture, at least one of the gas nozzle and a liquid nozzle being mounted for varying the disposition of the liquid nozzle relative to the gas jet to thereby vary the rate of aspiration from the outlet of such liquid nozzle relative to the rate of aspiration from the outlet of another liquid nozzle.