Patent ID: 8580027

Claim:
A coating formulation comprising: a) a first portion comprising a plurality of mesoporous fluoroalkylsilane-treated inorganic metal oxide aggregates, each of the aggregates of the plurality having at least 15 parts fluorine in the form of —CF 2 — and —CF 3 terminal fragments per 100 parts metal oxide by weight, and having a size distribution within the range of 0.1 μm to 20 μm, b) a second portion comprising a fluoroelastomeric binder; and c) a fluorinated solvent having the first portion of the plurality of mesoporous fluoroalkylsilane-treated inorganic metal oxide aggregates and the second portion of the fluoroelastomeric binder dispersed therein, wherein the fluorinated solvent has a boiling point between 30° C. and 200° C. and a viscosity at 20° C. of 0.0001 Pa·s to 10 Pa·s; wherein the coating formulation is configured to be sprayed on to a surface and forming a solid coating in which at least a portion of the fluoroelastomeric binder binds to at least one of the plurality of mesoporous fluoroalkylsilane-treated inorganic metal oxide aggregates, and a ratio of the first portion to the second portion determines a resultant surface roughness of the solid coating.