Description
This tape features a woven glass cloth backing coated with a thermosetting silicone adhesive, providing outstanding conformability and impregnation properties. Designed to operate continuously at temperatures up to 200°C, it maintains its structural and electrical properties even under thermal stress. The tape exhibits high tensile strength and excellent tear resistance, outperforming cotton and acetate alternatives by maintaining stable dielectric properties and abrasion resistance. The silicone adhesive ensures optimum resistance to solvents, varnishes, and chemicals, essential for dry-type transformer leads, switches, and other electrical assemblies. Top industry brands such as Scapa, 3M, and Nitto confirm its suitability for critical applications in electrical, automotive, aerospace, and specialty manufacturing.
Data Table
| Silicone Glass Cloth Tape | ||||
|---|---|---|---|---|
| Product Description | ||||
| Silicone glass tape is made by coating a layer of silicone adhesive on glass fiber cloth. | ||||
| Item | Unit | Typical Value | Standard Value | Test Method |
| Base Material Thickness | µm | 135 | 130-145 | ASTM D3632 |
| Adhesive Thickness | µm | 45 | 45-55 | ASTM D3632 |
| Total Tape Thickness | µm | 180 | 180-185 | ASTM D3632 |
| Heat Resistance | °C | “H”-180°C | 180°C–260°C | 180°C–260°C |
| Color | – | White | – | – |
| Peel Strength | gf/in | 650 | 600-700 | ASTM D3360 |
| Tensile Strength | kgf/cm | 16.5 | 15 and over | ASTM D3769 |
| Elongation | % | 14 | 12-15 | ASTM D3769 |
| Insulation Grade | (a) | S | S | – |
| Breakdown Voltage | kV | 3.5 over | 3.5 over | ASTM D169 |
| Electrical Resistance | Ω | – | – | ASTM D259 |
(a) Heat resistance class: “Y”≥90°C, “A”≥105°C, “E”≥120°C, “B”≥130°C, “F”≥155°C, “H”≥180°C, “N”≥200°C, “R”≥220°C
Note:The product specifications provided are for reference purposes only. Please refer to the actual product for final specifications. We also offer various sizes and thicknesses to meet your specific needs. For further customization, please contact us.
Application Scenarios
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Banding and securing layers of insulation in coil winding for motors, transformers, and generators
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Insulating and masking for PCB wave soldering
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Electrical insulation of wires, connections, and leads, especially in dry-type transformers
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Reinforcing and securing high-temperature non-adhesive insulating materials in electro-mechanical and aerospace components
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EMI/RFI shielding and cable harnessing for automotive and specialty applications
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Fixing switches, inductors, and output wires in high-voltage and high-temperature environments
Frequently Asked Questions
Q: What standards does glass cloth adhesive silicone tape meet?
A: Most products meet UL 510 for flame retardancy and may be RoHS compliant, including dielectric breakdown and tensile strength standards required in electrical insulation applications.
Q: Can this tape be used above 200°C?
A: For continuous service, the tape is rated up to 200°C (thermal class H). Short-term exposure (up to 232°C) is possible, but always consult individual brand specifications.
Q: How does it compare to cotton or acetate tapes?
A: Glass cloth silicone tapes provide up to 3 times greater strength, superior heat resistance, and stability at high temperatures compared to cotton or acetate-based tapes.
Q: Is the adhesive resistant to chemicals or solvents?
A: Yes, the silicone adhesive is formulated for excellent solvent and varnish resistance, suitable for both electrical and masking use in industrial settings.
Q: Can it be printed or marked?
A: Most brands offer printable carriers for easy component identification, branding, and technical feature marking.
Testing Standards
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UL 510: Test for flame retardancy and insulation of electrical tape
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IEC 60454: General performance standards for pressure-sensitive adhesive tapes for electrical purposes
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Dielectric strength, tensile strength, and thermal aging according to electrical insulation material standards