Datasheet

1170 Tape
Aluminum Foil with Conductive Adhesive
Data Sheet
Product Description
3M

1170 Tape consists of a 1-ounce deadsoft
aluminum foil backing and a unique electrically
conductive pressure-sensitive acrylic adhesive.
• Deadsoft 1-ounce aluminum foil backing
• Conductive acrylic adhesive
• Supplied on a removable liner for easy
handling and diecutting
Like all 3M shielding tapes, 3M 1170 is
available in standard and custom widths and
lengths. Standard length is 18 yards.
• Widths from 1/4” to 23”
• Longer lengths up to several times normal
length, dependent upon width. Check with
Customer Service.
Applications
3M 1170 Tape 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
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 attenuation.
For 3M 1170 Tape, typical shielding
effectiveness (far field) is in the range of 60dB
to 75dB (30 MHz to 1 GHz).
Properties Typical Values
Backing thickness 2.0 mil (0,05mm)
Total thickness (backing plus adhesive) 3.2 mil (.081mm)
Breaking strength
1
20 lb./in (35 N/10mm)
Adhesion to steel
1
35 oz/in (3,8 N/10mm)
Electrical resistance through adhesive
2
0.010 ohm
Flame retardancy
3
Pass
* Footnote: 1. Test method ASTM D 1000
2. MIL-STD-202 Method 307 maintained at 5 psi (3,4 N/cm
2
) measured over 1 in
2
surface area. Conductive particles in the adhesive
provide the electrical path between the application substrate and the foil backing.
3. UL-recognized for flame retardancy per UL 510, Product Category 0ANZ2, File E17385.