The invention relates to processes for the hydrophobization or oleophobization of a material. It is envisaged that the method comprises the steps of: - loading a compressed gas (22) with a hydrophobing and / or oleophobizing agent (21), - contacting the material (15) with the compressed and loaded gas (20), and Removing the gas (20) from the material (15) The invention further relates to a component of an electric machine comprising a material or consisting of a material. According to the invention, a water repellent and / or oil repellent agent is detectable in a near-surface region of the material to a depth of at least 1 mm in the material.
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