Used on screen printing to prevent ink diffusion. Adding 10~20% the condensing agent into ink can slow down the evaporating of the ink. It can reduce ink viscosity to prevent the ink flow in order to increase resolution of the printed pattern. Normally, it’s used for small design, line or the printed object with rough surface. It is also suitable for pad-print. The only concern is that it may reduce the concentration of the ink color and loss of the surface smoothness if it is used in excess.