Non-Woven Conductive Fabric Tape

CN-3490 is a non-woven conductive fabric tape from 3M™

Image of 3M's Non-Woven Conductive Fabric Tape3M Fabric Tape CN-3490 is a conductive, non-woven fabric and unique electrically-conductive, pressure-sensitive acrylic adhesive.

CN-3490 tape is used for applications requiring excellent electrical conductivity from the substrate, through the adhesive, to the conductive backing. Common uses include grounding and EMI shielding equipment, components, and shielded rooms. The unique, thin metallized backing offers the additional benefits of excellent flexibility and conformability, very light weight, and exceptional strength. The conductive backing also helps minimize the possibility of finger lacerations.

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.

Digi-Key can offer you a quote on your secondary services. For more information on 3M available options or if you need assistance, contact Please send outline dimensional drawings to the aforementioned e-mail address.

  • Color: gray
  • Adhesive: conductive acrylic
  • Type of backing: copper/nickel coated non-woven fabric
  • Total thickness (backing plus adhesive): 2.4 mils (0.06 mm)
  • Liner thickness: 5.8 mils (0.14 mm)
  • Breaking strength: 35 lb/in (16 kgf/25 mm)
  • Adhesion strength: 30 oz/in (800 gf/25 mm)
  • Cu/Ni-plated, conductive non-woven fabric
  • Conductive acrylic adhesive
  • Supplied on a removable liner for easy handling
  • Offered in various slitter roll sizes and die-cuts available

Fabric Tape

ImageManufacturer Part NumberDescriptionWidthAvailable Quantity
3M CN3490 2"SQ-100 datasheet linkTAPE FABRIC COPPER 50.8MM 100/PK3M CN3490 2"SQ-100TAPE FABRIC COPPER 50.8MM 100/PK2.00" (50.8mm)3 - Immediate
3M CN3490 2"SQ-100 product page link
3M CN3490 CIRCLE-2"-100 datasheet linkTAPE FABRIC COPPER CIRC 100/PK3M CN3490 CIRCLE-2"-100TAPE FABRIC COPPER CIRC 100/PK2.00" (50.8mm)2 - Immediate
3M CN3490 CIRCLE-2"-100 product page link
5-CN3490-1S datasheet linkTAPE FABRIC COPPER SQUARE 5/PK5-CN3490-1STAPE FABRIC COPPER SQUARE 5/PK1" (25.4mm)4 - Immediate
5-CN3490-1S product page link
5-CN3490-1/2-2R datasheet linkTAPE FABRIC COPPER 5/PK5-CN3490-1/2-2RTAPE FABRIC COPPER 5/PK0.5" (12.7mm)2 - Immediate
5-CN3490-1/2-2R product page link
Published: 2012-11-30