CN-3190 SHEET

## **3M[™] Fabric Tape CN-3190** Nickel on Copper-Plated Polyester Fabric 

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Data Sheet             September 2008<br>**----- End of picture text -----**<br>


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|**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**|Many factors determine the true shielding effectiveness of a  shielding tape, including|
|**Effectiveness**|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)**<br>(ASTM D1000unless noted)|**Typical Value**<br>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)**<br>(ASTM D1000unless noted)|**Typical Value**<br>US units (metric)|
|---|---|
|**Electrical Resistance Through Adhesive**<br>**1**|0.05 ohms|



1 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** • Anti-corrosion treated Cu/Ni conductive fabric 

   - Conductive acrylic adhesive 

   - Supplied on a removable liner for easy handling and die cutting 

**Shelf Life &** The  tape has a  5-year shelf  life from date of manufacture when stored in a clean, dry **Storage** 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** This  product will be  free from defects  in material and manufacture  at  the  time of purchase. **3M  MAKES Remedy; Limited NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF Liability 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.** 

3M is a trademark of 3M Company. 

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## **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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