3M 2-5-7850

Technical Data
July 2011
3M™ Electrically Conductive Acrylic Pad (eCAP) 7850
Product Description
3M™ Electrically Conductive Acrylic Pad (eCAP) represents a breakthrough in electrically conductive PSA tape and
conductive gasket technology. 3M™ Electrically Conductive Acrylic Pad 7850, a double sided tape, consists of a high
performance 3M adhesive loaded with conductive fillers and is ideal for EMI/RFI shield and EMI/RFI gasket to metal
surfaces. The PSA matrix is filled with carbon fillers which allow thermal and electrical interconnection between
substrates through the adhesive thickness (the “Z-axis”) and also provides electrically conducting in the plane of the
adhesive (“X-Y Axis”). 3M eCAP 7850 is ideal for electrical and thermal bonding and ESD grounding of electronic and
electrical devices. 3M eCAP 7850 can be applied as die cut parts or in roll form and has good adhesion to common
EMI/RFI substrates such as aluminum, stainless steel, and smooth gasket materials. 3M eCAP 7850 also electrically
connects and mechanically bond EMI/RFI shield and gasket to metal frames and enclosures. The low contact resistance
and tape construction result in good EMI performance.
Proprietary Technology
3M™ Electrically Conductive Acrylic Pad 7850 is a self-stick EMI gasket pad or tape which provides good electrical
conductivity for EMI shielding and ESD grounding. Made with a proprietary technology, the pad achieves a unique filler
distribution in three dimensional structure throughout the adhesive matrix. This makes the tape an excellent choice for use
near electronic components and assemblies. The tape is supplied on 50 meter rolls in width 600 mm.
Product Construction
Adhesive Type
Filler Type
Adhesive Thickness*
3M™ Electrically Conductive Acrylic Pad 7850
Filled Acrylic
Carbon particles
0.15 mm
Release Liner (Face Side)
50 µm silicone treated PET film
Transparent and easy release
Release Liner (Back Side)
75 µm silicone treated PET film
Printed and tight release
*Contact your local 3M sales representative for additional information on thicknesses and width.
3M™ Electrically Conductive Acrylic Pad (eCAP) 7850
Typical Properties
Note: The following technical information and data should be considered representative or typical only and should not be
used for specification purposes.
3M™ Electrically Conductive Acrylic Pad 7850
Product No.
Test Method
0.5 Ω
0.7 °C-in.2/W
10 Ω /
90° Peel Adhesion (FS)
1500 gf / inch
90° Peel Adhesion (BS)
1500 gf / inch
14 kg / sq. in.
Z-axis Resistance 1 inch x 1 inch
Z-axis thermal impedance
Surface Electrical Resistance
Compression Stress
Z-axis Resistance:
Measured between gold plated brass probes with 1 kg load.
Contact area: 25.4 mm x 25.4 mm, Dwell time: 60 seconds.
Compression Stress:
Measured at 25% compression (12 mm/min).
1 kg
(Gold Plated Brass)
3M™ Electrically Conductive Acrylic Pad (eCAP) 7850
MSDS: 3M has not prepared a MSDS for this product which is not subject to the MSDS requirements of the Occupational
Safety and Health Administration’s Hazard Communication Standard, 29 C.F.R. 1910.1200(b)(6)(v). When used under
reasonable conditions or in accordance with the 3M directions for use, the product should not present a health and safety
hazard. However, use or processing of the product in a manner not in accordance with the directions for use may affect its
performance and present potential health and safety hazards.
TSCA: This product is defined as an article under the Toxic Substances Control Act and therefore, it is exempt from
inventory listing requirements.
RoHs Complaint/REACH Compliant: This product complies with the European Union’s “Restriction of Hazardous
Substances” (RoHs) initiative and with European REACH regulations 2002/95/EC and 2005/618/EC.
For Additional Information
To request additional product information or to arrange for sales assistance, call toll free 1-800-251-8634. Address
correspondence to: 3M, Electronics Markets Materials Division, 3M Center, Building 225-3S-06, St. Paul, MN 551441000. Our fax number is 651-778-4244 or 1-877-369-2923. In Canada, phone: 1-800-364-3577. In Puerto Rico, phone:
1-787-750-3000. In Mexico, phone: 52-70-04-00.
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
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.
Electronics Markets Materials Division
3M Center, Building 225-3S-06
St. Paul, MN 55144-1000
1-800-251-8634 phone
651-778-4244 fax
3M is a trademark of 3M Company.
Please recycle. Printed in U.S.A.
© 3M 2011. All rights reserved.