To prevent rusting on aluminum profiles during installation, follow these steps: Ensure the aluminum profiles are clean and free from any contaminants before installation. Use stainless steel screws and fittings to avoid galvanic corrosion. Keep the profiles dry and avoid contact with moisture. Apply a protective coating or sealant if the profiles will be exposed to harsh environments. Store aluminum profiles in a dry place to prevent moisture absorption. Regularly inspect and maintain the profiles to catch any signs of corrosion early.