Tape AL-37BLK
Black Polyester Film (Matte Finish)
Laminated Aluminum Foil with
Conductive Acrylic Adhesive
Data Sheet
Product Description
3M™ Tape AL-37BLK consists of black polyester
film (matte finish) laminated soft aluminum foil
backing and a unique electrically conductive
pressure-sensitive acrylic adhesive.
• Soft aluminum foil backing
• Conductive acrylic adhesive
• Polyester laminate provides electrical
insulation
• Black color backing
• Supplied on a removable liner for easy
handling and die cutting
• UL recognized for flame retardancy per UL
510, Product category OANZ2, File 59505.
Please consult with sales representative about
custom width and length. Standard length is 20M.
Applications
3M Tape AL-37BLK is typically used for
applications requiring excellent electrical
conductivity from the application substrate through
the adhesive to the foil backing. Common uses
include grounding and EMI shielding in equipment,
components, shielded rooms, etc.
Shielding Effectiveness
Shielding effectiveness depends on conductivity,
permeability, thickness of metalization, adhesive
strength, degree of contact, smoothness of
application surface, strength and frequency of EMI
signal, etc. However, using standard tests and
fixtures, it is possible to determine a value for the
attenuation. (See chart below.)
Typical Properties
Properties Typical Value
Backing thickness 1 1.7 mil (0.042 mm)
Total thickness (backing plus adhesive) 1 2.8 mil (0.07 mm)
Adhesion to steel 1 3.4 N/cm
Electrical resistance through adhesive 2 0.05 Ω/25 mm2
Foot notes: 1. ASTM-D-1000 Test method
2. 3M Test method 1
1 of 1
Shielding Effectiveness (Magnetic Field KEC Method)
3M is a trademark of 3M Company.
Important Notice
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.
Warranty; Limited Remedy; Limited Liability. This product will be free from defects in material and manufacture as of
the date of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY
IMPLIED WARRANTY OF MERCHANTABILITY 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 loss or damage arising from this 3M product, whether direct, Indirect, special, Incidental or
consequential regardless of the legal theory asserted.
Electrical Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000 Litho in USA
www.3M.com/electrical/oem © 3M 2004 78-8126-6589-7-A
2 of 2
