The 3M Electrical Spec. Part 1170-1/2X18YD is a high-quality aluminum foil tape designed for EMI shielding applications. The tape is part of the 1170 Series and features a 3.2 mil thickness for durability and reliability. It is equipped with a conductive adhesive for superior bonding and conductivity. This tape comes in a convenient 1/2" width and 18-yard length, making it an ideal choice for various electrical and electronic projects that require EMI shielding. Trust 3M, a trusted name in the industry, for all your EMI shielding needs.