With the brute version the advertising profiles are unprocessed and more sensitive to external factors. In the anodised version, the surface is treated and provided with an oxide layer. Anodising is done by means of an electrolytic treatment. The applied oxide layer is hard, porous and wear-resistant. Afterwards the corrosion resistance can be improved by sealing the pores (sealing). The process ensures that the profiles remain more beautiful and better protected. It prevents the aluminium from turning white.