Polyester Mylar Tape Bulk in China
 | Polyester Mylar Tape Bulk in China
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Why polyester mylar insulation tape is used in electrical and electronic systems?
Polyester mylar insulation tape is widely used in electrical and electronic systems where reliable dielectric strength, dimensional stability, and long-term insulation performance are required. The polyester film backing provides consistent thickness and mechanical strength, making it suitable for insulating conductors, coils, and electronic components.
In controlled manufacturing environments, engineers often assess voltage resistance, aging behavior, and film stability when working with a mylar tape manufacturer for continuous production applications.
Product Overview
Polyester film adhesive tape is produced from biaxially oriented polyester (PET/Mylar) film coated with a pressure-sensitive adhesive, typically acrylic or rubber-based depending on insulation requirements. The polyester film offers excellent tensile strength and electrical insulation, while the adhesive ensures secure bonding to smooth and irregular surfaces.
This construction allows the tape to maintain insulation integrity under mechanical stress and temperature variation. Production in a China mylar tape factory focuses on film uniformity, adhesive coating control, and roll consistency to support industrial and electronic use.
Key Characteristics
- Polyester film backing with high dielectric strength
- Good dimensional stability under temperature variation
- Strong adhesion to metals, plastics, and laminates
- Smooth surface suitable for precise wrapping
- Reliable insulation performance over extended service life
These characteristics make mylar tape suitable for insulation and protection rather than structural reinforcement.
Typical Application
Mylar tape is commonly used in:
- Electrical motor and transformer insulation
- Coil wrapping and phase separation
- PCB and electronic component protection
- Cable insulation and separation layers
- General electrical assembly and equipment manufacturing
In electrical assemblies, polyester mylar tape for electrical insulation is frequently specified to maintain dielectric integrity between conductive parts. Production teams typically coordinate sourcing through a dependable mylar tape supplier to ensure stable quality across manufacturing batches.
Technical Data Sheet
| Parameter | Specification / Options |
| Product type | Polyester (Mylar) adhesive insulation tape |
| Backing material | Polyester (PET/Mylar) film |
| Adhesive type | Acrylic or rubber-based PSA |
| Film thickness | Approx. 25 – 50 microns |
| Total thickness | Approx. 0.05 – 0.10 mm |
| Standard widths | 6 / 9 / 12 / 19 / 25 / 50 mm |
| Standard lengths | 33 m / 66 m |
| Dielectric strength | High |
| Temperature resistance | Approx. -40 °C to +130 °C |
| Tensile strength | Good |
| Elongation | Low |
| Chemical resistance | Good |
| Application method | Manual or assisted wrapping |
| Storage condition | Cool, dry environment |
| Shelf life | Typically 12 months |
For electrical equipment production, manufacturers often standardize specifications when ordering bulk mylar tape to maintain insulation consistency.
How does mylar tape perform in long-term insulation applications?
When applied to clean and dry surfaces, mylar tape forms a stable insulating layer that resists tearing, stretching, and electrical breakdown. The polyester film maintains its dielectric properties over time, while the adhesive resists lifting and edge curling under normal operating conditions.
In motors and transformers, mylar tape for motor and transformer insulation helps reduce the risk of short circuits and insulation failure. Long-term supply for electrical programs is often coordinated through a mylar tape wholesaler to support continuous assembly and maintenance operations.
FAQ
Is mylar tape suitable for electrical insulation?
Yes. Mylar tape is widely used for electrical insulation due to its high dielectric strength and stable polyester film structure.
Can mylar tape withstand heat exposure?
Yes. Polyester mylar tape offers good heat resistance for most electrical and electronic applications, within the specified temperature range.
Does mylar tape shrink over time?
No. The biaxially oriented polyester film provides excellent dimensional stability and resists shrinkage under normal operating conditions.
Can mylar tape be supplied for specific application requirements?
Depending on application needs, customized mylar tape such as specific film thicknesses, adhesive types, or roll sizes may be selected. Global sourcing is commonly based in mylar tape China, supporting electrical and industrial insulation projects worldwide.