Tape Solutions for High Temperature Electrical Insulation Tapes
To always ensure reliable energy supply, transformation, transport and component protection in modern energy grids from the enormous temperatures and currents, the electro-mechanical industry requires strong tapes with high thermal classes that withstand design and application stresses. Electro-mechanical engineers need tailored solutions in combining various backings including PTFE, PI or glass cloth with high-performance adhesives that contribute to the thermal capability of a tape along with other critical tape properties including electrical, mechanical and chemical considerations. Our UL certified tapes range from high tensile strength glass cloth tape that are ideal for holding/banding layers in the winding of a dry transformer to conformable polyimide tapes which are ideal for wrapping the end-winding phase insulation in a motor or generator, resulting in fewer defects, longer lifetime and higher resistance.
Nomex® Aramid Paper Tapes
Nomex Aramid Paper Tapes with acrylic (Class F, 155°C) or rubber (Class B, 130°C) adhesives are an ideal choice to guarantee puncture resistance and absorption and are excellent for use in resin filled transformers or motors.
Fluoropolymer tapes
Fluoropolymer tapes (PTFE and FEP) with silicone adhesive offer outstanding temperature resistance (Class N, 200°C) and dielectric strength, ideal for insulation of end-windings in high temperature motors and generators. The fluoropolymer backings are available in a wide range of thicknesses and conformability options.
Polyimide tapes
Polyimide (PI) tapes with silicone adhesive offer high thermal resistance (Class H, 180°C) and conformability ideal for insulation of end-windings in high temperature motors and generators. PI tapes available feature DuPont Kapton® materials and value grades of PI in a full range of thicknesses.
Polyethylene-naphthalate tapes
Polyethylene-Naphthalate (PEN-Teonex®) Tapes with silicone adhesive offer equivalent thermal resistance to a PI tape (Class H, 180°C) and improved chemical resistance. Commonly used as insulation for ignition coils, our PEN tapes are available in unique colors including red and blue.
Glass cloth tapes
Glass cloth tapes with silicone adhesive are excellent insulation materials for high temperature applications including thermal Class N 200°C. Higher temperature coil winding applications demand the use of a high tensile, high temperature glass cloth tape for banding layers of insulation together.
Nomex, Kapton and Teonex are registered and owned by Dupont.
High Temperature Electrical Insulation Material Selection Guide
- Thermal Insulation Class F (155°C)
- Thermal Insulation Class H (180°C)
- Thermal Insulation Class N (200°C)
| Substrate | Adhesive | Thickness 0.003 to 0.010 in (0.075 to 0.250 mm) | UL File | Product Features | Common Application |
| Nomex Aramid Paper Tapes | Acrylic | X.50 | OANZ2.E178430 | Puncture resistant and high absorption for resin filled systems | Motors & dry transformers |
| X.80 | – | Good thermal, puncture and chemical resistance | |||
| X.130 | – | ||||
| Rubber | PX.50 | OANZ2.E178430 | Very good thermal resistance and outstanding breakdown voltage; high initial adhesion; good chemical resistance when thermoset | Phase insulation of electrical motors, generators, etc.; outer wrapping and anchoring of electrical transformers, coils, etc. |
*BOLD = UL Recognized Component
| Substrate | Adhesive | Thickness 0.0005 to 0.002 in (0.013 to 0.050 mm) | Thickness 0.003 to 0.010 in (0.075 to 0.250 mm) | UL File | Product Features | Common Application |
| Fluoropolymer Tape PTFE | Silicone | 2255 | – | OANZ2.E66639 | High strength and high dielectric tape | High frequency motors, wire harnesses |
| – | 2045 | OANZ2.E66639 | High elongation tape for conformable wire wrapping | |||
| Fluoropolymer Tape FEP | C Tape | – | – | For use in low temperature applications (-196°C) | ||
| 2355 | – | – | Exceptional clarity with a clean removal adhesive | |||
| Polyimide Tapes | Silicone | 2345-2 | 2345-5 | OANZ2.E66639 | Thick polyimide tape, high dielectric strength | High voltage motors |
| 2345-1D, 2345-2D (also listed as H.20, H.50) | - | OANZ2.E178430 | Featuring Dupont Kapton film | Dupont Kapton qualified traction motors, transformers | ||
| 2345-1 | - | OANZ2.E66639 | Premium electrical grade polyimide with high adhesion | High temperature motors, wire harnesses | ||
| K104 | - | - | Ultra-thin polyimide tape | Speaker insulation | ||
| PEN Tapes | Silicone | K.30, K.50 | - | OANZ2.E178430 | Featuring chemical resistant Dupont Teonex | Ignition coil insulation |
| Glass Cloth Tapes | Silicone | - | G561, 2915-7Q | OANZ2.E66639 | Glass cloth tape with thermoset silicone, Mil-i-19166C | High temperature motors, wire harnesses |
| 2915-10Q | - | Glass cloth tape with higher adhesion silicone, Mil-i-19166C | ||||
| GL.99 | OANZ2.E178430 | Economical glass cloth tape | High temperature dry type transformers | |||
| 2905 | OANZ2.E66639 | Silicone coated on two sides | High temperature motors, wire harnesses |
*BOLD = UL Recognized Component
| Substrate | Adhesive | Thickness 0.003 to 0.010 in (0.075 to 0.250 mm) | UL File | Product Features | Common Application |
| Glass Cloth Tape | Silicone | G565 | OANZ2.E51201 | Superior thermal capability, tensile strength and abrasion resistant tape | High temperature dry type transformers or motors |
