3M EMI Copper Foil Shielding Tape 1182, 1/2 in x 18 yd (12.70 mm x 16.5 m)General Information Brand 3M Adhesive Type Acrylic Country Of Origin Taiwan Sold As Case California Residents Proposition 65 Warning Dimensions and Specifications Backing (Carrier) Thickness (Imperial) 1. 6 mil Backing (Carrier) Thickness (Metric) 0. 04 mm Overall Length (Imperial) 18 yd Overall Length (Metric) 16. 5 m Overall Width (Imperial) 0. 5 in Overall Width (Metric) 12. 7 mm Overall Length Imperial 18. 0 Width 8. 27 in 21 cm Height 10. 24 in