11811/8X18YDS

3M™ EMI Copper Foil Shielding Tape 1181 with Electrically Conductive Acrylic Adhesive Data Sheet Product Description June 2021 3M™ EMI Copper Foil Shielding Tape 1181 is a 2.6-mil (0.066 mm) thick tape composed of a 1.4-mil (0.036 mm) flat copper foil backing coated on one side with a non-corrosive, electrically conductive acrylic pressure-sensitive adhesive supplied on a removeable liner.     Commonly used for EMI/RFI shielding applications in the electronics industry and for static charge draining, seaming shielded rooms, cable wrapping and surface contact to non-solderable materials Can be die-cut, is solderable and offers a multitude of uses in electrical design and test laboratories for prototyping, design and troubleshooting Adhesive requires no moisture, solvents, heat or other manner of preparation to affect application Flame Retardant per UL-510A Standard Properties Value Imperial (Metric) Copper Physical Properties Color - Visual Electrical Properties Adhesive Electrically Conductive Acrylic Backing Copper Foil - Flat Flame Retardant2 Adhesion to Steel1 - Minimum Pass Value Imperial (Metric) 1.4 mil (0.036 mm) 2.6 +/- 0.2 mils (0.066 +/- 0.005mm) 25 oz/in (2.7 N/cm) Breaking Strength1 - Minimum 22 lb/in (39 N/cm) Mechanical Properties Backing Thickness - Nominal Total Thickness1 Notes: 1. 2. 3. 4. Electrical Resistance4 - Maximum Shielding Effectiveness3 - Average 300 kHz – 2.5 GHz Value Imperial (Metric) 0.005 Ω/in2 66 dB ASTM D1000 Test Method - properties measured at room temperature 73°F (23°C) unless otherwise stated UL Recognized Flame Retardant per UL510A Standard, Category OARC2, File No. E17385 ASTM D4935 Test Method - properties measured at room temperature 73°F (23°C) unless otherwise stated Test Method: MIL-STD-202 Method 307 maintained at 5 psi (3.4 N/cm2) measured over a 1 in2 surface area a. Silver coated glass beads embedded in acrylic adhesive provide the electrical path between application substrate and foil backing Shielding Effectiveness Many factors determine the true shielding effectiveness of a shielding tape, including type and thickness of foil, adhesive type, intimacy of contact, smoothness of application surface, frequency of the EMI signal, etc. Agency Approvals & Self Certifications  UL Component Recognized: UL510A Standard, Category OARC2, File No. E17385  For Regulatory information including RoHS, REACH, please visit www.3M.com/regs Shelf Life & Storage This product has a 5-year shelf life (from date of manufacture) when stored in humiditycontrolled storage (50°F/10°C to 80°F/27°C and