The invention concerns an acetabulum for a hip prosthesis made from a biocompatible polymer, said acetabulum being covered with a coating which comprises a first layer of titanium applied to said biocompatible polymer and which further comprises, on the first layer, a second layer of titanium or of calcium phosphate, characterised in that: - the roughness Rt of the first layer of titanium is between 40 and 500 μm, - said first layer of titanium has been applied by hot compression to said biocompatible polymer. - Acetabula for hip prostheses.
