| abstract |
The invention relates to coating compositions for producing a hydrophobic coating for capacitors for achieving dropwise condensation, wherein the coating composition is a liquid solvent and coating materials selected from the group comprising sol-gel materials based on silica sol, fluoropolymers, silicones and / or Polyurethane-forming components, wherein, in each case based on the total weight of the coating composition: - The solids content of the sol-gel material based on silica sol in the range of ≧ 0.5 wt .-% to ≦ 20 wt .-% is and / or - The content of fluoropolymer in the range of ≧ 0.1 wt .-% to ≦ 5 wt .-% is and / or - The solids content of silicone in the range of ≧ 5 wt .-% to ≦ 30 wt .-% is and / or - The content of polyurethane-forming components in the range of ≧ 3 wt .-% to ≦ 30 wt .-%, is. |