A process is provided for the production of a surface coating as well as the
use
of surface coatings to increase the surface tension of objects. The surface coating
is obtained by depositing a layer of at least one element that can be oxidized
with water or an alloy that can be oxidized with water. Subsequently, the deposited
layer is subjected to boiling water or water vapor. The element is generally derived
from the following group of elements: Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Ga,
Ge, Zr, Nb, Cd, In, Sn, Sb.