New Ink Defoamers Expand Product Range

Extended Options with New Ink Defoamers It is impossible to find a single additive like a defoamer that works in all applications. However, there may be an additive that is optimal for a specific application. Evonik's Coating Additives business unit portfolio now includes three siloxane-based defoamer concentrates, each with different properties and advantages. Formulators can select the additive most suitable for water-based paints or overprint varnishes. The newest member of this defoamer family is called TEGO® Foamex 811; it is positioned directly between the two existing products TEGO® Foamex 812 and 852. TEGO® Foamex 812 is particularly effective at preventing foam, Foamex 852 is particularly compatible, and the new TEGO® Foamex 811 offers a very good combination of these properties. Susanne Struck, Head of Printing Inks Application Technology, said, "The defoaming power and compatibility are at the highest level. This makes our new defoamer suitable for a very broad range of applications in the printing inks industry." All three defoamers can be used in food-contact packaging. They contain no solvent, biocide or mineral oil and meet the requirements of many regulations such as Swiss Ordinance (List A), FDA and other regional regulations. Source