Fiber Glass Cloth Insulation Tape

Fiber Glass Cloth Insulation Tape Material: Non-alkali woven fiberglass cloth Color: White, optional center line Thickness: 0.10 mm, 0.12 mm, 0.15 mm, 0.17 mm Width: 20 mm, 25 mm, 30 mm, 50 mm Roll Length: 30 m or 50 m Use: Transformer, motor, coil, cable insulation Contact Us

High Temp Tapes Company is a manufacturer of fiber glass cloth insulation tape for electrical insulation systems that require stable wrapping, heat resistance, and mechanical support. Made from non-alkali woven fiberglass cloth, the tape is used on transformer coils, motor windings, cable banding, generators, and industrial electrical equipment. Before production, sample width, thickness, coating type, and roll tension can be checked on the actual component, so the tape fits the real winding process.

Product Photos

Product Overview

This fiberglass electrical insulation tape is made for electrical parts where paper, film, or repair tapes may not hold shape under heat, tension, or abrasion. The woven fiberglass backing gives low stretch and better edge-tear resistance during high-temperature wrapping. It is often applied around coil edges, crossover points, motor leads, end turns, and cable exits where the insulation layer must stay in place.

High Temp Tapes Company produces plain woven tape, silicone adhesive tape, acrylic adhesive tape, and rubber thermosetting adhesive tape for different insulation systems. Silicone adhesive is often selected for higher heat exposure. Plain woven fiberglass tape is useful when resin wet-out or varnish compatibility needs to be tested. For narrow winding work, we check slit edge quality, roll release, edge fray, and wrapping feel because these details affect line speed and insulation stability.

Technical Data Sheet

Benefits

• Woven fiberglass insulation tape gives stronger support than soft film tapes in tight coil wrapping.
• Non-alkali fiberglass cloth helps provide electrical insulation and a stable thermal barrier.
• Tensile strength supports banding, lead anchoring, motor winding, and crossover insulation.
• Controlled slit edges help reduce fraying during 20 mm, 25 mm, 30 mm, or 50 mm wrapping.
• Heat-stable construction helps limit shrinkage, curling, and loosening after heating.
• Dielectric strength, breakdown voltage, and insulation resistance can be matched by selected grade.
• Sample checks help confirm thickness tolerance, roll tension, edge finish, and varnish behavior.

Applications

1. Transformer insulation glass cloth tape for layer separation, coil cover, crossover areas, and dry transformer banding.
2. Motor end turns, slot edges, and lead anchoring where wrapping tension and heat stability are required.
3. Coil wrapping around crossover points, cable exits, and areas exposed to abrasion or repeated movement.
4. Electrical cable banding where thermal insulation and cut-through resistance are needed near joints.
5. Generator, switchgear, and electrical equipment insulation requiring dimensional stability under heat.
6. Varnish or resin insulation systems where woven glass fiber tape needs sample confirmation before production use.

How Should You Select Fiber Glass Cloth Insulation Tape for Electrical Wrapping?

Selection should start with the insulation system, not only the tape width. Transformer coils, motor windings, lead anchoring, and high-temperature wrapping all place different stress on the tape. A firmer woven structure helps the tape stay stable under hand or machine tension, while the adhesive or coating affects heat aging, dielectric behavior, and surface hold. A reference tensile range of 200 N/cm-600 N/cm can be selected by weave, thickness, and coating grade.

What Makes Glass Cloth Tape Suitable for Transformer and Motor Insulation?

Glass cloth tape works well in transformer and motor insulation because it adds electrical separation and mechanical reinforcement. In winding areas, soft tapes may stretch, shrink, or tear when tension increases. Woven fiberglass cloth helps the wrapped area keep its shape around coil edges, crossover points, motor leads, and end turns exposed to continuous heat. For reliable use, match the grade with temperature class, breakdown voltage requirement, winding pressure, and later contact with varnish or resin.

FAQ

Is this tape the same as construction mesh tape?

No. It is made for electrical insulation, transformer work, motor winding, and high-temperature wrapping, not wall joint tape, casting tape, packing tape, or glass window tape.

Which thickness is suitable for coil wrapping?

Common choices are 0.10 mm, 0.12 mm, 0.15 mm, and 0.17 mm. Thin grades wrap tightly, while thicker grades add reinforcement.

Can the tape be used with varnish or resin?

Yes, but the grade should be tested with the actual varnish or resin system because plain and coated tapes behave differently.

Should samples be tested before bulk use?

Yes. Check width, thickness, winding tension, edge fraying, heating behavior, dielectric requirement, and fit on the real component.