1125 Tape Copper Foil with Acrylic Adhesive Data Sheet Product Description Applications 3M™ 1125 Tape consists of a 1-ounce rolled 3M 1125 tape is typically used in a variety of copper foil with an acrylic, pressure-sensitive EMI/RFI shielding applications such as shielding adhesive. small electromagnetic components, repair and • 1-ounce copper foil backing modification of printed wiring boards, flat • Acrylic adhesive with excellent bond strength conductor assemblies, prototype designs, • Supplied on a removable liner for easy handling supplementary shielding of joints and seams and and diecutting shielding cable splices. • Meets flame spread requirement of UL510 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,strength and frequency of the EMI signal,etc. However,using standard tests and fixtures,it is possible to determine a value for the attenuation. Typical Properties Typical Values Adhesive Acrylic Backing Copper Backing Thickness 1.4 mil (0.04mm) Total Thickness1 3.5 mils (0.088mm) Color Copper Flame Retardancy2 Pass Breaking Strength3 25 lbs/in (44N/10mm) Elongation4(% at break) 5% Adhesion to Steel4 40 oz/in (4.4N/10mm) Note: Typical properties are not recommended for specification purposes.Product specifications will be provided upon request. Footnote: 1 Test Method ASTM D1000 2 ULRecognized for flame retardancy per UL 510, Product Category OANZ2, File E17385. 3 Test Method ASTM D3759 4 Test Method ASTM D3330

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