Polyester Woven Tape Manufacturer in India
Unlike film-type electrical tapes where PET is used in its solid form, polyester woven tape uses PET filaments to create a textile-like tape formation. Such formation results in unique mechanical properties of woven polyester tape including increased tear strength, superior conformance around non-regular shapes and excellent heat resistance and non-shrinking properties, rendering woven polyester tapes suitable for insulation and winding tasks in electrical machine and transformer production.
Harnawa Inc., an established supplier of polyester woven tapes in India, delivers high-quality woven polyester tapes, which have been tested and approved for use to the manufacturers of motors, transformers and generators throughout India, holding international certification and being delivered pan-India out of our Mumbai facilities.
What is Polyester Woven Tape?
The polyester woven tape is produced through the weaving of high quality polyester yarns into tape form, in contrast to the lamination or coating of the solid film in the production of the common polyester film electrical tape. The woven construction makes up the difference between the two tapes, since the weaving process provides the polyester woven tape with mechanical toughness, strength against tears and dimensional stability when tensioned, as well as heat resistance and controllable shrinkage.
Woven Polyester Tape vs Film-Based Polyester Tape
It’s worth understanding the distinction clearly when specifying material:
| Property |
Polyester Woven Tape |
Polyester Film Electrical Tape |
| Construction |
Woven polyester filaments |
Solid PET film with adhesive coating |
| Mechanical Strength |
High tear resistance, strong under tension |
Good flexibility, moderate tear resistance |
| Shrinkage |
Low shrinkage under heat |
Dimensionally stable film |
| Best Suited For |
Binding, insulation, and structural wrapping in transformers and machinery |
Coil wrapping, PCB masking, general electrical assembly |
Summary point: In situations where strength and rigidity under pressure are important considerations, such as in the case of transformer core and coil binding, woven polyester tapes are always the material of choice over film-based polyester tapes.
Technical Specification Overview
Harnawa Inc.’s polyester woven tape is supplied to the following specification:
- Insulation Class: F
- Temperature Rating: 155°C
- Thickness: 0.10 mm to 0.76 mm
- Width: 6 mm to 1000
Understanding the Class F Insulation Rating
The polyester woven tape has been classified as F, meaning that it is capable of operating continuously under temperatures up to 155°C. This kind of thermal rating enables the tape to be used reliably in applications involving manufacture and maintenance of motors, transformers and generators.
Thickness & Width Availability
Harnawa Inc. offers polyester woven tape with thickness ranging from 0.10 mm to 0.76 mm and width from 6 mm to 1000 mm to allow OEMs or fabricators to choose tapes with size exactly suited for their needs for coil binding, transformer cores, or other insulations.
Key Features & Benefits
Amazing Heat Resistance — Ensures sustained performance under constant heat conditions to 155°C.
Low Shrinkage — Heat-resistant weave prevents shrinkage due to heat.
Higher Resistance to Tears – Due to its tensile strength, filament that is woven together is less likely to tear compared to film based material.
Inspirational and Bonding Properties – Can be used for insulation and bonding purposes.
Ideal for Production and Repair – Performs exceptionally well in production and repair scenarios.
Applications of Polyester Woven Tape
Polyester woven tape is widely used across:
- Transformer Laminations & Winding Ties – For use in transformer laminations and winding ties
- General Purpose Electrical Machine Insulation Tape – For insulation of electrical machines and electrical motor and generator ties
- Motor Winding Ties – For motor winding ties in the motor construction
- Transformer & Electric Motor Repair/Maintenance – For repair of insulation of transformers & electric motors which requires good ties
- High Temp Industrial Ties – For high temp resistant industrial ties with woven tapes
Completing the Insulation System
Polyester woven tape is frequently used alongside other insulation materials to build a complete dielectric and structural system for motors, transformers, and electrical equipment:
Sourcing all of these materials from a single certified supplier ensures compatibility, consistent quality standards, and simplified procurement for OEMs and panel manufacturers.
Certifications and Quality Control
Harnawa Inc.’s polyester tape reels are produced and certified according to the international quality standard, which is evidenced by the following certificates:
- UL approved
- CE marked
- RoHS compliant
- ISO 9001:2015 certified manufacturing process
- REACH compliant
Polyester Woven Tape Manufacturer in India — Why Choose Harnawa Inc.
Harnawa Inc. is an established producer of polyester woven tapes in India, which provides class F rated woven polyester tapes along with all other types of insulation materials for transformers, motors, generators, and industrial machinery makers.
What sets us apart:
- Insulation Class F, Temperature Stable Up To 155 °C
- High Tensile Strength And Low Shrinkage Woven Insulation
- Wide Range Of Sizes Available From Thickness 0.10mm To 0.76mm & Width 6mm To 1000mm
- Widest Sales Network Available In Mumbai, Delhi, Pune, Ahmedabad, Etc.
Frequently Asked Questions
1.Why do you use polyester woven tape?
Polyester woven tape is used for transformer core and coil bundling, insulation of electric machinery and motors, general purpose binding.
2.What is the difference between woven polyester tape and polyester film tape?
Woven polyester tape is produced from polyester fibers and features high tear strength and minimal shrinkage while polyester film tape is produced of solid PET film and is designed for coil winding and general assembly.
3.To which insulation class does polyester woven tape belong?
It belongs to Class F insulation class allowing to operate at temperatures up to 155ºC continuously.
4.What is the thickness and width of the polyester woven tape that you have?
Polyester woven tape available at Harnawa Inc. comes in a thickness of 0.10 mm to 0.76 mm and a width of 6 mm to 1000 mm.
5.Is it possible to use polyester woven tape for repairing the transformers?
Surely. Heat-resistant and low shrinkage qualities of polyester woven tape makes it suitable for making and repairing transformers and motors.
