Our Premium Performance Aluminum Foil Tapes — including 3M 425, 3M 427, and 3M 431 — are renowned for their excellent durability and flexibility. These tapes are ideal for applications requiring high thermal conductivity, heat and light reflectance, and moisture resistance. Whether you need to protect surfaces from heat, insulate ducts, or seal panels, these tapes offer superior performance, even in demanding environments like aerospace, automotive, and industrial settings.