“…In contrast, a low surface energy material is required that surrounds the particles and renders them hydrophobic. Common reagents include fluoro‐/alkylsilanes on silica nanoparticles, [ 8,21,22,24,27–29,31,33,34 ] polydimethylsiloxane, [ 10,23,25 ] or similar low surface energy polymers such as Silres, [ 2 ] an emulsion of alkoxyl silanes and fluoropolymer, custom‐synthesized polymers based on sulfur, diisopropylbenzene, and fluoroalkene, [ 5 ] fluorinated polybenzoxazine [ 30 ] or Capstone, [ 32 ] a water‐based acrylic fluorochemical dispersion. However, all these nanocomposite materials show drawbacks such as, e.g., the necessity of the additional hydrophilization step with fluoro‐/alkylsilane, which requires large amounts of chemicals due to the high surface area of the nanoparticles, the risks related to handling nanoparticles [ 39–44 ] which require additional safety measures as well as the difficult waste handling and emission commonly encountered with nanocomposites.…”