（2）水性涂料粘度低，在使用稠剂后则使泡沫的膜壁增厚而增加其弹性，使泡

(2) a low viscosity water-based paint, the thickener in the use of the film bubble wall thickening which increases elasticity, and difficult to stabilize the foam elimination. <br>(3) dispersing a pigment wetting and dispersing agents are substances reduce the surface tension of the system, and help produce a stable foam.

(2) Water-based paint viscosity is low, after the use of thick agent, the film wall of the foam thickens and increases its elasticity, so that the foam is stable and not easy to eliminate.<br>(3) The wetting agent and dispersant of dispersing pigments are also substances that reduce the surface tension of the system, which contributes to the production and stability of foam.

(2) the viscosity of waterborne coatings is low. After thickening agents are used, the film thickness of the foam increases and its elasticity increases, making the foam stable and not easy to eliminate.<br>(3) wetting agents and dispersants of disperse pigments are also substances that reduce the surface tension of the system and contribute to the generation and stability of foams.<br>