Non-stick coating with improved hydrophobic properties

An anti-stick top coating characterised in that it is in the form of a continuous film having an average thickness between 30 and 70 μm and is constituted by a sol-gel material comprising:

• 30% to 50% by weight relative to the total weight of the coating of a matrix of at least one metallic polyalkoxylate forming a network;
• at least 5% by weight relative to the total weight of the coating of at least one colloidal metallic oxide dispersed in said matrix;
• and
• 0.1% to 6% by weight of at least one silicone oil, by total weight of the coating for the reconstitution, at temperature between 200° C. and 600° C., of hydrophobic groups of polyalkoxylate at the surface of said continuous film,
• wherein the silicone oil is selected from phenyl silicones, methylphenyl silicones, and methyl silicones with a molecular weight of at least 1000 g, which is non-reactive and has a viscosity of between 20 and 2000 mPa·s.