3M™ Shielding Non-woven Fabric Tape CN-3490 has a thin 2.0-mil nickel copper-coated non-woven fabric backing with a conductive pressure-sensitive adhesive and liner.
The CN-3490 tape has conductive non-woven backing offers the additional benefits of excellent flexibility and conformability, very light weight, exceptional strength and resistant to oxidation, solvents and oils. The nonwoven backing also minimizes the possibility of finger laceration. Highly conductive particles in the acrylic adhesive provide a multitude of electrical paths between the application substrate and the surface of the conductive non-woven backing. Acrylic adhesive has good resistance to heat, oxidation, solvents and oils. This tape is designed for a variety of applications: EMI/RFI shielding, grounding and static charge draining. These tapes can used in both electronic & electrical devices, shielding connectors & cables, shielded rooms and EMI test laboratories for prototyping, design and troubleshooting. The CN-3490 tape is available from 3M in log rolls (standard size of 39.4 inch x 54.5 yds or 1000 mm x 50,0 m) to 3M slitter/converters. Also, 3M offers to 3M authorized distributors (and slitter/converters) various size slit rolls for resale to end users. Custom die-cut parts are available from 3M slitter/converters.