Double-Coated Conductive Tape (3MCN4490)

3MCN4490 consists of conductive non-woven
Fabric and unique electrically conductive pressuresensitive
Acrylic adhesive.
Cu/Ni plated conductive non-woven fabric
Conductive acrylic adhesive
Supplied on a removable liner for easy
Handling and die-cutting
Like all 3M shielding tapes, 3M CN 4490 tapes
Are available in standard and custom widths and
Lengths. Standard length is 100 M.
Widths from 6mm to 500 mm
Longer lengths up to several times normal
Length, dependent upon width. Check with
Customer Service.
Applications
3M CN 4490 double-coated conductive tape is
Typically used for applications requiring excellent
Electrical conductivity from the substrate through
The adhesive to the conductive backing. Common
Uses include grounding and EMI shielding in
Equipment, components, shielded rooms, etc.
The unique and thin metalized backing offers the
Additional benefits of excellent flexibility and
Conformability, very light weight, and exceptional
Strength. The conductive backing also minimizes
The possibility of finger lacerations.
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.