... AS DOWCORNING Q2-5211 KY-388 silicone based copolymer coating adjuvant for leather wetting agent ... the wettability between the painting and the based materials and make the painting migrate to leather ... and hand-feeling, 3, solve the surface defects in leather’s production process, such as pinhole, fisheye ... in dry and wet PU, PVC leather, surface wetting, levelling and light finishing of the based ...