Aluminum signs are lightweight, rust-proof, and highly durable, making them ideal for both indoor and outdoor use. They resist corrosion and can withstand harsh weather conditions, which ensures long-lasting performance. Galvalume signs, made from a steel substrate coated with a blend of aluminum and zinc, offer enhanced durability with superior resistance to corrosion and heat. While aluminum signs are more lightweight and versatile, Galvalume signs are particularly beneficial in environments prone to extreme weather, offering a combination of strength and longevity with a slightly heavier feel.