Protect
and Insulate.
3M
™
Insulating and Conductive Tapes
Product Selection Guide
Contents
3M
™
Insulating and Conductive Tapes are made from a broad range of backings and adhesives to
meet the demanding requirements of different applications and environments. Extensive quality
control and testing, combined with accurate process controls, are just part of the reason that 3M
consistently provides high quality products.
3M
™
Electrical Tapes
p. 2
Glass Cloth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Filament Reinforced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Acetate Cloth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Epoxy Film . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Polyester Film . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Polyimide Film . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Composite Film . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PTFE Film . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Vinyl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3M Conductive and EMI Shielding Tapes
Tape Construction
3M Specialty Tapes
Industry Specifications
About 3M Insulating and Conductive Tapes
3M Flexible Insulation Products
p. 12
p. 14
p. 15
p. 16
p. 18
p. 20
1
3M
™
Electrical Tapes
Glass Cloth
3M offers exceptionally flexible and conformable glass cloth backings on the market with high-temperature resistance
and tensile strength. With excellent absorption of resins and varnishes plus cut-through and edge-tear resistance, they
are ideal for holding and strapping applications up to 200°C.
Available with three (3) adhesive systems:
aggressive thermosetting rubber resin, solvent-resistant acrylic and high-
temperature silicone.
Thermosetting Rubber
3M
™
Glass
Cloth Tape
Features
Acrylic
27
90
Stiffer, saturated
backing. Provides
different handling.
155
7.5/0,19
3000
Silicone
69
High-temperature
(200° C) glass
cloth tape.
UL 510 flame
retardant. Printable.
200
7.0/0,177
3000
79
Solvent-resistant
version of 3M tape 27
Printable. Listed in
many Class B systems.
150
7.0/0,177
3000
High-performance
glass cloth tape
that is tough and
conformable.
155
7.0/0,177
3000
Operating Temp
(°C) †
Total Thickness
(mils)/(mm)
Dielectric
Breakdown (V)
Insulation Resistance
(megaohms)
Breaking Strength
(lb/in)(N/10 mm)
Elongation
(% at break)
Electrolytic
Corrosion
Adhesion to Steel
(oz/in)/(N/10 mm)
CTI Material Group
4.8x10
4
1x10
2
2.7x10
2
4.8x10
4
150/262
175/306
150/262
180/314
5
0.9
5
0.9
5
0.9
5
0.9
30/3,3
50/5,5
30/3,3
40/4,4
|
-
|
|
†
2
Operating temperature is equivalent to UL Recognition temperature where applicable (See page 16).
= Flame retardant. See page 16 for product specifications.
Filament Reinforced
Filament tapes are designed for applications needing both the dielectric strength of polyester film and the high
mechanical strength of glass fibers. They offer the ultimate in low stretch, high tensile and edge-tear resistance for
a more cost-effective solution to glass cloth tapes. Excellent for anchoring lead wires to banding coils and end-turn
taping. A special paper-backed filament tape is available for high-voltage oil-filled distribution transformer use.
Available with two (2) adhesive systems:
aggressive thermosetting rubber resin and solvent-resistant acrylic.
Thermosetting Rubber
3M
™
Filament
Tape
46
Tough, durable
filament tape.
Features
Acrylic
1046
Tough, durable
filament tape.
1139
Solvent-resistant,
high-temperature
filament tape.
1076
Paper/glass
filament backing
designed for
oil-filled
transformer
applications.
105
10.0/0,253
3500
1339
Solvent-resistant
filament tape.
More
conformable.
1039
Solvent-resistant
filament tape.
More
conformable.
Operating Temp
(°C) †
Total Thickness
(mils)/(mm)
Dielectric
Breakdown (V)
Insulation
Resistance
(megaohms)
Breaking
Strength (lb/in)
(N/10 mm)
Elongation
(% at break)
Electrolytic
Corrosion
Adhesion to Steel
(oz/in)/(N/10
mm)
CTI Material
Group
†
130
7.0/0,177
5500
130
7.0/0,177
5500
155
6.5/0,165
5500
130
6.5/0,165
5500
130
7.0/0,177
5500
3x10
3
3x10
3
-
-
1x10
5
1x10
5
275/481
275/481
225/394
275/481
275/481
275/481
5
1.0
5
1.0
6
-
5
1.0
5
1.0
5
1.0
50/5,4
50/5,4
35/3,8
40/4,4
35/3,8
35/3,8
||
-
-
-
|
|
Operating temperature is equivalent to UL Recognition temperature where applicable (See page 16).
3
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