PET Composite Non-Woven Tape for Electrical Insulation

What Is PET Composite Non-Woven Tape?

PET composite non-woven tape is an electrical insulation tape made by combining a polyester (PET) film layer with a non-woven insulating layer, together with a suitable adhesive system when an adhesive-backed construction is required.

The composite structure combines the dimensional stability and dielectric properties of PET film with the flexibility and conformability of non-woven material.

This makes PET composite non-woven tape useful for electrical insulation applications where a single film layer may not provide the required combination of flexibility, mechanical protection, and insulation performance.

Structure of PET Composite Non-Woven Tape

A typical construction may include:

PET Film + Non-Woven Insulation Layer + Adhesive

Depending on the application, the material structure and adhesive can be customized.

The PET layer can provide:

• Electrical insulation
• Dimensional stability
• Mechanical strength
• Smooth and consistent surface

The non-woven layer can provide:

• Flexibility
• Conformability
• Cushioning
• Additional insulation thickness

The final performance depends on the materials, thickness, adhesive system, and manufacturing process.

Where Is PET Composite Non-Woven Tape Used?

PET composite non-woven tape can be used in various electrical insulation applications.

1. Transformer Insulation

The tape can be used for winding insulation, layer separation, component wrapping, and other insulation positions where a composite structure is required.

Transformer insulation systems may use different materials according to the specific electrical, thermal, and mechanical requirements of each position.

2. Motor and Coil Insulation

PET composite non-woven tape can also be considered for motor and coil applications where flexibility and insulation stability are important.

It can be used for:

• Coil wrapping
• Winding insulation
• Component fixing
• Protective insulation
• Separation between insulating components

3. Electrical Components

The composite structure can also be used in various electrical and electronic components where additional insulation thickness or conformability is required.

PET Composite Non-Woven Tape vs PET Film Tape

Although both products use PET film, their structures and application characteristics are different.

The right choice depends on the insulation position and required tape construction rather than simply the material name.

How to Choose PET Composite Non-Woven Tape

Before selecting a product, several parameters should be confirmed.

Thickness

Thickness affects insulation build-up, mechanical protection, and the available space inside the component.

Width

The tape width should match the winding or assembly process. Narrow tapes may be required for automatic or precision applications.

Adhesive

The adhesive system should be compatible with the application temperature and the surface being bonded.

Electrical Performance

Depending on the insulation system, buyers may need to evaluate dielectric strength, insulation resistance, and other electrical properties.

Temperature Resistance

The complete tape construction should be evaluated under the actual operating and processing temperature.

Winding and Converting Quality

For automatic applications, consistent slitting, stable rewinding, edge quality, and winding density are also important.

Why Manufacturing Quality Matters

For composite insulation tapes, the performance of the finished product depends not only on the raw materials but also on the converting process.

Important manufacturing controls include:

• Composite material quality
• Adhesive coating uniformity
• Drying and curing
• Rewinding tension
• Slitting accuracy
• Roll winding density
• Finished-product inspection

Poor converting quality can cause problems such as uneven edges, unstable rolls, wrinkles, or inconsistent tape feeding.

Customized PET Composite Non-Woven Tape

Different electrical components may require different combinations of:

• PET film thickness
• Non-woven thickness
• Total thickness
• Adhesive type
• Adhesive thickness
• Tape width
• Roll length
• Core size
• Color

Therefore, customized PET composite non-woven tape can be developed according to the customer's insulation structure and production process.

Liangyi Tape — Electrical Insulation Tape Manufacturer

Changshu Liangyi Tape Industrial Co., Ltd. is a source manufacturer of electrical insulation tapes with in-house coating, rewinding, and slitting capabilities.

Our product range includes:

• PET / Mylar insulation tape
• PI / Kapton tape
• PET composite non-woven tape
• PET silicone tape
• Fiberglass cloth insulation tape
• Transformer barrier tape
• Transformer margin tape

We can provide customized widths, thicknesses, adhesive systems, and roll specifications for transformer, motor, coil, and other electrical insulation applications.

Conclusion

PET composite non-woven tape combines the advantages of PET film and non-woven insulation materials in one composite construction.

It can be considered when an electrical insulation application requires a combination of insulation, flexibility, mechanical stability, and conformability.

When selecting the right tape, evaluate the complete construction, adhesive system, thickness, electrical performance, temperature requirements, and converting quality rather than choosing only by the backing material.

Looking for customized PET composite non-woven tape for electrical insulation? Contact Liangyi Tape for your application requirements.