Aluminum cases and boxes from Polycase are a dependable solution for housing electronics. Aluminum has a high heat tolerance, is corrosion-resistant, and provides a natural level of EMI shielding. Aluminum box styles include diecast aluminum enclosures and extruded aluminum enclosures. A variety of NEMA and IP ratings are available on select styles. With a large selection of sizes and styles for indoor and outdoor use, it's easy to find the perfect aluminum box, enclosure, or case from Polycase.