Copolymer-coated aluminum tape is a type of aluminum tape that is coated with a copolymer resin on one or both sides. The copolymer coating provides a strong bond to other materials, making it useful for a variety of applications in the packaging, construction, and electrical industries. The tape can be used for sealing and joining materials, as a moisture barrier, or as a shielding tape for electromagnetic interference (EMI) protection. It is also commonly used in the manufacture of flexible air ducts for HVAC systems. The thickness and width of the tape can vary depending on the specific application.