Silway 248 spray adjuvant is a  polyether trisiloxane. In aqueous  solutions, it gives super spreading  and does dramatically reduce  surface tension. Typically, Silway 248 spray adjuvant  reduces the surface tension of  aqueous agricultural mixtures significantly. 

At concentrations as low as 0.1 percent, Silway 248 spray adjuvant reduces surface tension  below 22 mN/m, which produces very rapid wetting and spreading  on hard-to-wet surfaces such as  waxy leaves. 

Silway 248 spray adjuvant is  nonionic in nature, making it useful  with a broad range of agrochemical  formulations.