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3M™ Copper Foil Tape 3325

3M Product Number 3325
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  • UL 510 Recognized
  • Designed to meet a wide variety of EMI and RFI industrial and electrical applications
  • 1.5 mil electrolytic grade copper foil backing is extremely malleable and readily accepts solder
  • Aggressive acrylic adhesive combines high adhesion and low resistance
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  • UL 510 Recognized
  • Designed to meet a wide variety of EMI and RFI industrial and electrical applications
  • 1.5 mil electrolytic grade copper foil backing is extremely malleable and readily accepts solder
  • Aggressive acrylic adhesive combines high adhesion and low resistance
  • Bonds to low surface energy substrates and other challenging surfaces
  • 69# PCK liner makes for efficient processing

3M™ Copper Foil Tape 3325 is a copper foil backed tape coated on one side with an acrylic adhesive which is pressure sensitive yet very aggressive. This tape features high tensile copper foil which is extremely malleable for shielding, flexible flat conductors, printed circuit boards and more. It is UL 510 Recognized, excellent for EMI and RFI shielding.

An Electrically Conductive Copper Tape for a Broad Range of Applications
3M™ Copper Foil Tape 3325 (PDF, 105.27 Kb) features a 1.5 mil copper foil backing and 1.5 mil pressure sensitive acrylic adhesive. The backing is electrolytic grade, high tensile copper which is extremely malleable and accepts solder, making it suitable for a very broad range of industrial and electrical applications. The adhesive is very aggressive and delivers excellent adhesion and wet-out even on textured and low surface energy substrates. This combination of materials is ideal for EMI/RFI shielding and static discharge applications including printed circuit board manufacture and repair. A 69-lb. polycoated kraft paper liner provides easy release and makes for efficient processing.

Recommended Applications

  • EMI and RFI shielding
  • Applications where static discharge is a concern
  • Printed circuit board manufacture and repair
  • Flexible flat conductors
  • Electrostatic applications

Excellent Adhesive Performance
3M™ Copper Foil Tape 3325 is coated with a pressure sensitive acrylic adhesive designed to bond to a broad range of substrates including low surface energy substrates. This tape adheres immediately upon contact and can perform under a wide spectrum of temperatures ranging from -40°F/-40°C to 225°F/107°C. 3M™ Copper Foil Tape 3325 is UL 510 Recognized.

3M™ Metal Foil Tapes
Copper is just one of the metal-backed tapes (PDF, 2.22 Mb) available from 3M. Our foil tapes resist failure from common sources of degradation including moisture, ultraviolet rays and many chemicals, and are commonly used for reflecting, wrapping, masking, sealing, and more in applications from air ducts to washing machines. As with all 3M products, our 3M™ Copper Foil Tape 3325 is supported by exclusive 3M technical expertise and application advice. 3M Copper Foil Tapes are suitable for demanding applications in aerospace, automotive, appliance, maintenance, repair and operations and many more segments. They are also thermally conductive for heating/cooling efficiency.

Bringing Better Ideas to the Surface through Science and Innovation
In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

Learn about 3M™ Masking and Surface Protection Products (PDF, 4.65 Mb)

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Large Volume Order

If you are considering a large purchase of this or other 3M Industrial Adhesives and Tape products, our inside sales team is ready to help by providing additional information and options. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we'll do our best to prove that we should be your supplier of choice.


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