Product Description
Discover the strength and reliability of our Bi-Directional Filament Electrical Tape, engineered for high-performance insulation, superior load retention, and demanding electrical bundling tasks. Constructed with bi-directionally reinforced fiberglass filaments embedded within a durable polyester film backing, and coated with a high-performance acrylic pressure-sensitive adhesive, this tape offers enhanced tensile strength in both machine and cross directions—ideal for complex coil structures and transformer assemblies.
Unlike monodirectional tapes that offer strength along a single axis, our bi-directional filament tape provides balanced reinforcement, making it particularly suitable for applications where multidirectional stress or load distribution is critical. Its excellent dielectric properties, high mechanical integrity, and heat resistance up to 155°C (311°F) ensure reliable performance across a wide array of insulation and anchoring applications in electrical manufacturing.
Datasheet
| Item No. | TN-380 |
| Thickness (mm) | 0.14 |
| Adhesion to Steel (N/25mm) | 12 |
| Adhesive | acrylic adhesive |
| Tensile Strength (N/25mm) | 1000 |
| Elongation at Break (%) | 5% |
| Temperature Resistance (℃) | 155 |
| Electrical Strength (KV) | 5 |
| Length (M) | 50 |
Features
Our bi-directional filament insulation tape incorporates several performance-driven features that elevate its industrial value:
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Enhanced Bi-Directional Strength: Reinforced with glass filaments in both directions, this tape offers exceptional load retention and anti-split performance, ideal for dynamic stress environments.
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Stable High-Temperature Performance: Withstands continuous exposure to up to 155°C, making it dependable for heat-intensive processes such as transformer or motor insulation.
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Strong Adhesion to Multiple Substrates: The advanced acrylic adhesive adheres seamlessly to copper, magnet wire, laminated surfaces, and metal coils without corrosion or edge-lift.
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Excellent Dielectric Insulation: Maintains a dielectric breakdown strength of ≥ 5 KV, ensuring safety and electrical stability in high-voltage environments.
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Low Stretch, High Control: The cross-directional filament matrix minimizes tape elongation, allowing for precise positioning during wrapping and banding.
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Clean Unwind and Smooth Handling: Designed for automated or manual applications, the tape unwinds evenly without adhesive residue or filament fraying.
Applications
Due to its dual-directional fiber architecture, our filament electrical tape is the go-to choice for specialized electrical and mechanical reinforcement purposes:
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Transformer & Motor Coil Insulation: Ideal for dry-type transformers, rotary machinery, and stator coil bundling where multidirectional strength is required.
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Lead Wire Binding and Positioning: Offers firm holding power for anchoring lead wires to transformer cores or motor housings, especially in applications subject to vibration.
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Cross-Banding & Insulation Wrapping: The tape’s structural strength makes it optimal for cross-binding operations, providing insulation and mechanical cohesion in power components.
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Heavy-Duty Electrical Banding: Perfect for securing large component assemblies, cable harnessing, and structural bundling under load-bearing conditions.
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Armature and Field Coil Reinforcement: Adds strength and insulation to critical electromagnetic parts, enhancing both thermal resistance and operational stability.
