> Metals are intrinsically hydrophilic; immediately after femtosecond laser surface structuring, they first become more hydrophilic, but the exposure to air turns the metals superhydrophobic. This transition is explained by chemical interaction between the surface and the ambient CO 2, resulting in an accumulation of carbon and its compounds on the laser-treated surface. [14,28] We believe that the laser-induced surface nanostructures also play an important role in enhancing this chemical interaction due to nanochemical effects.
so it would seem that the water needs to be in contact with this specific surface.
1) Can you varnish the area, or will my car/airplane wing need a bare metal surface?
2) What about abrasion? Will, e.g., cutlery damage the non-stickyness of the pan?