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Polyester tape, commonly known as Mylar tape, is an advanced adhesive solution designed for a wide range of applications in electrical insulation, crafting, and industrial use. Made from high-quality Polyester Film (PET FILM) and coated with a strong acrylic adhesive, this type of tape exhibits remarkable durability, heat resistance, and adhesion capabilities, making it an essential tool in various settings. Whether you need electric tape for electronics, sticky tape for crafts, or insulation tape for automotive or industrial applications, polyester tape stands out as a top choice.
Polyester Film Electrical Insulation Tape, commonly referred to as PET insulation tape, is engineered for reliable electrical insulation and mechanical protection in motors, transformers, coils, and electronic assemblies. Manufactured using dimensionally stable polyester film and a pressure-sensitive acrylic adhesive, this tape offers consistent dielectric performance, good tensile strength, and stable adhesion under defined operating temperatures.
Unlike general-purpose adhesive tapes, this PET insulation tape is developed specifically for industrial electrical and electronic environments, where insulation integrity, process consistency, and traceability are critical.
Backing material
Polyester (PET) film
Uniform thickness and smooth surface finish
High dimensional stability under tension
Adhesive system
Acrylic pressure-sensitive adhesive
Balanced adhesion and clean unwind
Stable performance during thermal aging within rated limits
The combination of PET film and acrylic adhesive ensures controlled adhesion without excessive cold flow, making the tape suitable for both manual and semi-automated application processes.
| Item No. | J-310 | J-310 |
| Adhesive Type | Acrylic | Acrylic |
| Thickness | 0.055mm | 0.08mm |
| Adhesion to Steel | 9.5 N/25mm | 9.5 N/25mm |
| Tensile Strength | ≥ 32N/10mm | ≥ 50N/10mm |
| Elongation at Break | 50% | 50% |
| Temperature Resistance | 130ºC | 130ºC |
| Electrical Strength | ≥ 5 KV | ≥ 5.5 KV |
| Length | 50/66M | 50/66M |
This polyester insulation tape is designed to provide dependable insulation under Class B thermal conditions. Key performance characteristics include:
Stable dielectric strength for low- and medium-voltage insulation tasks
Resistance to adhesive migration during prolonged heat exposure
Minimal backing shrinkage during thermal cycling
Consistent unwind behavior, supporting controlled wrap tension
The acrylic adhesive formulation maintains adhesion without embrittlement when exposed to long-term operating temperatures within the rated range.
Mechanical stability is essential in coil winding and electrical assembly. This PET insulation tape offers:
High tensile strength to resist tearing during winding and wrapping
Controlled elongation to prevent sudden deformation under tension
Smooth edge quality to reduce the risk of insulation gaps or edge lift
Uniform roll build for predictable automated or semi-automated application
These properties help reduce variation during production and support higher first-pass acceptance rates.
Polyester tape, or mylar tape, boasts high tensile strength, enabling it to withstand considerable stress without tearing or degrading. Its durability ensures that it remains functional over long periods, even in challenging conditions.
Superior Electrical Insulation
As an insulation tape, polyester tape offers exceptional electrical insulating properties, protecting sensitive components from short circuits and electrical shocks. This makes it indispensable in electrical engineering and electronics manufacturing.
Heat stable polyester materials ensure that this tape can withstand extreme temperatures, making it suitable for various high-heat applications. Whether you are using it for soldering, painting, or in extreme environments, this tape will not melt or yield under pressure.
Weatherproof and UV Resistant
The ability to resist UV radiation and moisture ingress adds an extra layer of reliability to polyester tape, securing its place in outdoor and exposure-heavy environments. This weather-proof tape can be relied upon to maintain its properties, regardless of conditions.
From insulation wrapping of motors and transformers to arts and crafts projects, polyester tape's wide array of applications makes it a versatile tool in any toolkit. Its capability to perform in diverse settings adds significant value to your expenditure on adhesive solutions.
This product is intended exclusively for industrial and electrical use, including:
Electrical insulation of motors and transformers
Coil wrapping and interlayer insulation
Phase and slot insulation
Component and terminal protection
Temporary masking during electrical assembly processes
It is not designed for decorative, stationery, or household applications.
To ensure consistent performance, the following storage and handling guidelines are recommended:
Store at 15–25 °C with relative humidity below 60%
Keep rolls sealed until use
Avoid direct sunlight and proximity to heat sources
Apply FIFO (first-in, first-out) inventory management
Typical shelf life: 12 months from manufacturing date when stored properly
Incoming inspection should include a visual check, unwind test, and lot number verification.
Each production batch is manufactured under controlled process conditions and subject to internal quality checks, including:
Backing thickness verification
Adhesion and tensile testing
Dielectric strength validation
Material documentation and test reports can be provided upon request for engineering validation and procurement records.
For industrial customers, customization options are available, including:
Non-standard widths and lengths
Custom roll quantities per carton
Private labeling or printed identification
Bulk palletized packaging with moisture protection
Please consult with our technical team to confirm feasibility and MOQ requirements.
Q1: Is this polyester insulation tape suitable for continuous high-temperature use above 130 °C?
A: No. The tape is rated for continuous operation up to 130 °C. For higher temperature applications, polyimide-based tapes should be considered.
Q2: Can this tape be used in automated winding or taping equipment?
A: Yes. The uniform roll build and controlled unwind characteristics make it suitable for manual and semi-automated processes. Automation trials are recommended before full deployment.
Q3: Can samples be provided for evaluation?
A: Yes. Samples can be supplied for electrical, mechanical, and process testing prior to bulk orders.
