Selecting materials for IP45 enclosures depends on equipment weight, mounting method, mechanical strength, corrosive environment, aesthetics, and fabrication methods. Steel suits products requiring structural strength and custom fabrication; aluminum typically requires verifying weight and profile or sheet structure; stainless steel grades should be chosen based on humidity, cleaning methods, and corrosion exposure.

Surface finishes affect the enclosure's appearance, weather resistance, maintenance, and service life. Options include powder coating, spray painting, brushing, polishing, or other processes, though finishing alone cannot ensure IP45 protection.

Achieving IP45 also requires coordinated design across doors, gaskets, fasteners, cutouts, and assembly structure. Prior to customization, clearly define the material, sheet thickness, surface finish, sealing requirements, and operating environment.