™
3M Fabric Tape CN-3190
Nickel on Copper-Plated Polyester Fabric
Data Sheet
September 2008
Description
3M™ Fabric Tape CN-3190 consists of anti-corrosion polyester rip-stop fabric and
unique electrically conductive pressure-sensitive acrylic adhesive.
Applications
3M CN-3190 is used in applications typically served by metal foil shielding tapes such as
grounding and EMI shielding equipment, components, shielded rooms, etc.
The unique metal-plated fabric backing offers the additional benefits of excellent flexibility
and conformability, very light weight, and exceptional strength. The fabric 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. However, using
standard tests and fixtures it is possible to determine a value for the attenuations. For
CN-3190 fabric tape, typical shielding effectiveness is in the range of 65dB to 70dB.
Before using this product, the user must evaluate it and determine if it is suitable for
the intended application.
Typical Properties
Technical information provided consists of typical product data and should not be used for
specification purposes. Unless otherwise noted, all tests are performed at room temperature.
Physical
Property (Test Method)
(ASTM D1000 unless noted)
Typical Value
US units (metric)
Color
Grey
Adhesive
Conductive acrylic
Type of Backing
Copper/Nickel coated ripstop polyester
Total Thickness (backing plus adhesive)
4.3 mils (0,11 mm)
Liner Thickness
5.8 mils (0,14 mm)
Breaking Strength
40 lb/in (18 kgf/25 mm)
Adhesion Strength
31 oz/in (900gf/25 mm)
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3M™ Fabric Tape CN-3190
Nickel on Copper-Plated Polyester Fabric
Typical Properties
Electrical
Property (Test Method)
(ASTM D1000 unless noted)
Electrical Resistance Through Adhesive
1
Typical Value
US units (metric)
1
0.05 ohms
MIL-STD-202 Method 307 maintained at 5 psi (3,4 N/cm2) measured over 1 in 2 surface
area. Conductive particles in the adhesive provide the electrical path between the
application substrate and the foil backing.
Specifications
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•
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Shelf Life &
Storage
The tape has a 5-year shelf life from date of manufacture when stored in a clean, dry
place at a temperature of 70° F (21° C) and 40-50% relative humidity.
Availability
For availability, please contact your local distributor. Names and addresses are
available from 3M.com/electrical [Where to Buy] or call 1-800-676-8381.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on
information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this
product, you must evaluate it and determine if it is suitable for your intended application. You assume all
risks and liability associated with such use. Any statements related to the product which are not contained
in 3M’s current publications, or any contrary statements contained on your purchase order shall have no
force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M.
Warranty; Limited
Remedy; Limited
Liability
This product will be free from defects in material and manufacture at the time of purchase. 3M MAKES
NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF
MERCHAN OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty
period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or
refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for
any indirect, special, incidental or consequential loss or damage arising from this 3M product,
regardless of the legal theory asserted.
Anti-corrosion treated Cu/Ni conductive fabric
Conductive acrylic adhesive
Supplied on a removable liner for easy handling and die cutting
3M is a trademark of 3M Company.
30
Electrical Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
800 676 8381
FAX 800 828 9329
www.3M.com/electrical/oem
Please recycle.
© 3M 2008 All rights reserved.
78-8126-9843-5_B
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