Tegopren® 5878 is a 100% active, non-ionic polyether siloxane. Apart from its extraordinary reduction of surface tension in aqueous solutions, the main property of Tegopren 5878 is super spreading, the fast coverage of large hydrophobic surfaces.  The use of small amounts of Tegopren 5878 reduces the surface tension of water-based systems and enhances the spreading on non-polar surfaces.