(57) A method of forming oxide layers where an element of aluminum or its alloy is subjected to anodic polarization in a silicate, borate, hexametaphosphate bath or their mixture, preferably containing sodium or potassium silicate with a concentration from 1 to 120 g/dm3, sodium or potassium tetraborate with a concentration from 1 up to 120 g/dm³ sodium or potassium hexametaphosphate with a concentration from 1 to 240 g/dm³ sodium or potassium hydroxide with a concentration of 0.3 to 30 g/dm³ conducted under direct current or pulsed current regimes, while maintaining a current density of 0.1 A/dm2 up to 50 A/dm², positive voltage from 250 to 800 V and negative voltage from 0 to -150 V, for 5 to 120 minutes, preferably rinsed in distilled water and dried, characterized by immersing the oxidised element in the liquid polymer monomer of aluminum corrosion inhibitor, and after its extraction and drying, it is subjected to the anodic polarization process again, which results in increasing the corrosion resistance of the metal substrate.