YL-W6400 has been pre-diluted with xylene and PMA solvent (1:1), under normal circumstances, YL-W6400 is used with YL-W6800 or YL-W6700, the recommended addition amount is 20~40%; The addition of YL-W6400 can prolong the activation period, accelerate the surface drying speed by 2/2 degrees, and improve the chemical resistance or solvent resistance. Although the activation period of the two-component coating can be extended appropriately after the addition of YL-W6400, the activation period is affected by the polymer content and other components (such as resin, thickener, plasticizer, etc.). In many dispersions, the end point of the activation period (usually a few hours) does not show up as gelation.