3M combines innovative technologies with customer collaboration to provide solutions that are performance engineered to insulate, protect and secure electrical equipment. These solutions help enable cost-effective manufacturing of motors and generators, transformers, electric vehicle components and wire harnesses that can be counted on for long-term reliability.
3M’s Insulating and Conductive tapes, Flexible Insulation, Heat Shrink and Cold Shrink Tubing, and Epoxy Resins, are designed and manufactured for the electrical equipment manufacturing industry to enable long-lasting performance through an efficient, safe manufacturing environment.
3M Electrical Tapes
3M Composite Film Tapes are excellent for general purpose insulation, anchoring, and banding in motors and transformers. They combine the high dielectric strength and edge-tear resistance of polyester film and nonwoven polyester mat for a conformable product with great puncture resistant and electrical properties.
Available in a variety of thicknesses and with two (2) adhesive systems: aggressive rubber resin and solvent-resistant acrylic.
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Features
- (44) Economical tape, for general purpose electrical applications. Longer length rolls.
- (44HT) Aggressive adhesive designed for motor applications.
- (55) Thicker for better puncture resistance and higher dielectric applications.
- (44D-A) A version of 3M tape 44 with twice the backing thickness for greater dielectric strength.
- (44T-A) A version of 3M tape 44 with three times the thickness for greater dielectric strength.
Thermosetting
Rubber
Rubber
Rubber
Acrylic
Acrylic
Name
44
44HT
55
44D-A
44T-A
Operating Temp
130°C
130°C
130°C
130°C
130°C
Total Thickness
5.5 mils
5.5 mils
5.5 mils
5.5 mils
5.5 mils
Breakdown
5500V
5500V
6000V
6000V
8500V
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.
These tape solutions are available with two (2) aggressive thermosetting rubber resin and solvent-resistant acrylic.
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Features
- (46, 1046) Tough, durable filament tape.
- (1139) Solvent-resistant, high-temperature filament tape.
- (1076) Paper/glass filament backing designed for oil-filled transformer applications.
- (1339, 1039) Solvent-resistant filament tape. More conformable.
Thermosetting
Rubber
Rubber
Acrylic
Acrylic
Acrylic
Acrylic
Name
46
1046
1139
1076
1339
1039
Operating Temp
130°C
130°C
155°C
105°C
130°C
130°C
Total Thickness
7.5 mils
7.0 mils
6.5 mils
10.0 mils
6.5 mils
7.0 mils
Breakdown
5500V
5500V
5500V
3500V
5500V
5500V
3M offers exceptionally flexible and conformable glass cloth backings 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.
These tape solutions are available with three (3) adhesive systems: aggressive thermosetting rubber resin, solvent-resistant acrylic and hightemperature silicone.
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Features
- (27) High-performance glass cloth tape that is tough and conformable.
- (90) Stiffer, saturated backing. Provides different handling.
- (79) Printable,solvent-resistant version of 3M tape 27. Listed in many Class B systems.
- (69) Printable, high-temperature (200° C) glass cloth tape. UL 510 flame retardant.
Thermosetting
Rubber
Rubber
Acrylic
Silicone
Name
27
90
79
69
Operating Temp
150°C
155°C
155°C
200°C
Total Thickness
7.0 mils
7.5 mils
7.0 mils
7.0 mils
Breakdown
3000V
3000V
3000V
3000V
3M Polyimide Film tapes are specially designed for high-temperature applications requiring a thin puncture-resistant backing. The physical and electrical properties of polyimide remain stable when used in such applications as coils, harnesses and capacitors, that are subjected to extreme temperatures.
Available with two (2) adhesive systems: solvent-resistant acrylic and high-temperature silicone.
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Features
- (92) Printable, 1-mil film. High-performance, high-temperature, flame retardant UL 510.
- (1093) 1-mil film. High-temperature, flame retardant masking applications. UL 510.
- (1205) 1-mil film. Solvent-resistant version of 3M tape 92. UL 510 flame retardant.
- (1218) 1-mil film. High-temperature and solvent-resistant. UL 510 flame retardant.
Thermosetting
Silicone
Silicone
Acrylic
Acrylic
Name
92
1093
1205
1218
Operating Temp
180°C
180°C
180°C
180°C
Total Thickness
3.0 mils
2.5 mils
3.0 mils
3.0 mils
Breakdown
7500V
7500V
7500V
6000V
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3M Insulating Tapes
3M Flexible Insulation