Harnawa Insulations Private Limited

Introducing our comprehensive range of Electrical Insulation Tapes, meticulously designed to meet diverse industry needs. Our collection includes Fiberglass Tapes, Fiberglass Adhesive Tapes, Polyester Woven Tapes, Polyimide Tapes, Polyester Resin Fiberglass Tape, and Varnished Fiberglass Tapes. These tapes are crafted with precision, offering a spectrum of options to cater to various electrical insulation requirements. Whether you need the strength of fiberglass, the versatility of polyester, or the heat resistance of polyimide, our Electrical Insulation Tapes ensure reliable and effective insulation solutions for your applications.

Our esteemed Polyester Resin Fiberglass Tapes renowned for their exceptional quality. Crafted with precision, these tapes feature parallel twisted E-glass yarns pre-impregnated with a specialized thermosetting polyester resin. Widely acknowledged for their high quality, these tapes find extensive applications in AC and DC motors, generators, and transformers, with a particular emphasis on traction motors. Elevate your electrical insulation solutions with the reliability and excellence embodied in our Polyester Resin Fiberglass Tapes.

Polyester Resin Fiberglass Tape is a high-temperature, high-strength insulation tape made by bonding woven fiberglass cloth with a polyester resin system. This combination provides excellent mechanical strength, thermal endurance and electrical insulation suitable for industrial motors, transformers, alternators, generators and heavy-duty coil applications.

The fiberglass base offers exceptional tensile strength, dimensional stability and resistance to stretching, while the polyester resin coating enhances bonding ability, heat resistance, moisture resistance and dielectric properties. This tape performs reliably at elevated temperatures and retains its mechanical toughness even in harsh operating environments.

Polyester Resin Fiberglass Tape is widely used for coil banding, transformer insulation, armature wrapping, reinforcement of DMD/mica layers, busbar wrapping, cable bundling and mechanical support of windings. It is compatible with varnishes, impregnating resins, epoxies, polyester systems and adhesive bonding materials.

Key Features

• Fiberglass woven tape coated with heat-resistant polyester resin
• High dielectric insulation and mechanical rigidity
• Excellent tensile strength and abrasion resistance
• Withstands high temperatures (Class F: 155°C)
• Moisture-resistant, oil-resistant and chemically stable
• Dimensionally stable — does not stretch, shrink or deform
• Ideal for reinforcement of transformer and motor windings
• Compatible with varnish, epoxy, and impregnating systems

Applications

• Coil banding and reinforcement
• Transformer core insulation and outer wrapping
• Motor winding support, slot reinforcement
• Armature wrapping and structural insulation
• Cable bundling in high-temperature areas
• Busbar insulation and binding
• Strengthening DMD, NMN, mica tapes and insulation layers
• Industrial electrical repair and OEM winding processes

Technical Range

• Material: Woven Fiberglass with Polyester Resin Coating
• Thermal Class: Class F (155°C)
• Thickness: 0.15 mm – 0.40 mm
• Tensile Strength: Very high (fiberglass-based)
• Width Options: 10 mm – 100 mm
• Color: Natural White / Off-White with resin finish
• Type: Non-adhesive high-strength insulation tape

Advantages

• High mechanical durability under vibration
• Superior electrical insulation for heavy-duty windings
• Strong resistance to heat, moisture and chemicals
• Ideal for export-grade motors and industrial systems
• Maintains strength under continuous thermal cycling