The thermal conductivity of aluminum foil tape is primarily determined by the aluminum foil substrate, the type of adhesive used, and the product's overall structure. Aluminum foil itself possesses high thermal conductivity-typically around 200 W/(m·K)-enabling rapid heat transfer. Additionally, its surface offers strong thermal reflectivity, which reduces radiant heat transfer, thereby providing advantages in thermal insulation and thermal management applications.

However, the presence of an adhesive layer means the tape's overall thermal conductivity is lower than that of pure aluminum. While the overall thermal conductivity of standard aluminum foil tape varies based on structure and thickness, it generally falls within the range of 1 to 10 W/(m·K). Tapes utilizing thermally conductive adhesives or specialized composite structures offer enhanced thermal performance, meeting requirements for applications such as heat dissipation for electronic components and the securing of thermal management materials.

In practical use, the effectiveness of aluminum foil tape depends not only on thermal conductivity but also on adhesion quality, contact area, material thickness, and the operating environment. In applications like air-conditioning insulation and pipe sealing, the tape is valued primarily for its thermal insulation, moisture resistance, and heat-reflecting properties; conversely, in the electronics sector, the focus shifts to its thermal conductivity, electrical conductivity, and electromagnetic shielding capabilities. Therefore, the selection of aluminum foil tape should be based on a consideration of the specific application and the product's technical specifications.