Aluminium doesn't sustain high levels of mechanical stress. Extremely high levels of stress can damage the anodised surface. In environments where high chemical stress is to be expected, the compatibility of this material should first be tested. It is important to remove mortar or grout residue immediately from visible surfaces.

Powder coated profiles are specially suited for walls and should mainly be used there. These profiles are pre-treated (chromated) and have a polyester powder coat. But the surface isn't resistant against scratching and abrasion. In environments where high chemical stress is to be expected, the compatibility of this material should first be tested.