SR-103A, belongingto polyether modified polydimethylsiloxane,is a wide used Quick Leveling Agent because of its advanced compatibility with resin, and other materials. It can efficiently improve leveling effects, wetting substrates, and avoiding paint diseases such as shrinkage cavities in water based systems. To solvent based system, SR-103Acan significantly enhance gloss, anti-stickiness, and slip performances for products while has no influence on re-coatingprocess.