Factory-produced cleanroom steel panels have good adhesion, wide range in formability and outdoor durability, and moderate resistance to chemicals. These panels offer excellent formability and color retention, superior outdoor durability and resistance to chalking, solvent, and have limited color variety. The coating of cleanroom steel panels exhibits good hardness, wear resistance, heat resistance, as well as external durability and non-chalking properties, with limited luster retention and flexibility. They have excellent resistance to UV radiation and high durability, with main performance characteristics lying between polyester and fluorocarbon.