Greesol GS190 surfactants are a-Ethoxy-propoxy-modified branched-chain silane compound, due to its special structure and it has better performance than conventional surfactants. It has two hydrophilic, through joins group will two part connection, joins group has chemical key role, reducing the poles of the electrostatic force of repulsion and the hydration layer, makes its has low CMC characteristics; easy adsorption in gas/liquid surface, effective to reduced water of surface tension; can in into film process in the fast migration to paint film surface, reduced or elimination pollutants caused of tension not balance effect, avoid shrinkage and needle of produced. It also has low foam, no foam, good compatibility and otherfeatures, does not influence recoatability, Application of waterbase and UV formula system.