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Many of the 3M™ Filament Tapes were designed for applications needing both the dielectric strength of polyester film and the high mechanical strength of glass fiber.

Offering the ultimate in low stretch, high tensile strength and edge-tear resistance, these products are more cost effective than glass cloth tapes in applications up to 130 °C. They can be used to anchor lead wires and terminal strips and to band coils. A special paper-backed filament tape is also available to meet the unique requirements of high voltage oil-filled distribution transformers. Available in custom widths from 1/8 inch to 24 inch, and comes standard on a 60 yard roll on a 3 inch diameter core. Standard length varies by thickness.
Filament Reinforced Electrical Tape
Unit of Measure
Items Filament Reinforced Electrical Tape
46
Filament Reinforced Electrical Tape
Filament Reinforced Electrical Tape
1139
Filament Reinforced Electrical Tape
Filament Reinforced Electrical Tape
1146
Filament Reinforced Electrical Tape
Filament Reinforced Electrical Tape
1276
Filament Reinforced Electrical Tape
Filament Reinforced Electrical Tape
1339
Filament Reinforced Electrical Tape
Features N/A Good tensile strength and edge-tear resistance; for use in end-turn taping. N/A Solvent-resistant, high tensile strength; for use in heavy-duty bundling, holding, reinforcing application, and air and oil-filled transformer transfer. N/A Good tensile strength and edge-tear resistance; for use in end-turn taping. N/A Solvent-resistant, high shear strength adhesive; good tensile strength for holding in oil-filled transformer applications. N/A Solvent-resistant, high shear strength adhesive; good tensile strength and edge-tear resistance; for holding applications.
Backing Description N/A Polyester Film/Glass Filament N/A Polyester Film/Glass Filament N/A Polyester Film/Glass Filament N/A Paper/Glass Filament N/A Polyester Film/Glass Filament
Adhesive N/A RT N/A A N/A RT N/A A N/A A
Operating Temperature N/A 130 ºC N/A 155 ºC N/A 130 ºC N/A 105 ºC N/A 130 ºC
Total Thickness N/A 7 mil0.177 mm N/A 6.5 mil0.165 mm N/A 6.5 mil0.165 mm N/A 9 mil0.228 mm N/A 6.5 mil0.165 mm
Dielectric Breakdown N/A 5500 V N/A 5500 V N/A 5500 V N/A 3500 V N/A 5500 V
Insulation Resistance N/A 3 x 103 Megaohm N/A N/A N/A N/A 1 x 105 Megaohm
Breaking Strength N/A 275 lb/in481 N/10mm N/A 225 lb/in394 N/10mm N/A 300 lb/in525 N/10mm N/A 275 lb/in481 N/10mm N/A 275 lb/in481 N/10mm
Elongation N/A 5 % N/A 6 % N/A 5 % N/A 5 % N/A 5 %
Electrolytic Corrosion Factor N/A 1 N/A N/A N/A 1 N/A 1
Adhesion to Steel N/A 50 oz/in5.5 N/10mm N/A 35 oz/in3.8 N/10mm N/A 55 oz/in6.05 N/10mm N/A 40 oz/in4.4 N/10mm N/A 35 oz/in3.8 N/10mm
CTI Material Group N/A II N/A N/A N/A N/A I