MYLAR®
What Is Mylar® Insulation?
As a biaxially oriented polyethylene terephthalate (BoPET) film, Mylar® material offers an outstanding combination of dielectric strength, tensile toughness, dimensional stability, and chemical resistance — making it one of the most widely used Mylar® for insulation across motors, transformers, generators, electronics, and packaging industries.
Sui On Insulating is an experienced Mylar® film supplier offering both Mylar® (DuPont) and Melinex® (DuPont Teijin) grades in standard and custom specifications. Our Mylar® film rolls and Mylar® insulation sheets are supplied with full quality assurance, serving customers across Asia, Europe, North America, and global markets.
ISO 9001
ISO 14001
IATF 16949
Applications of Mylar® Insulation
Industrial Motors
Mylar® EL insulation sheets are widely used as slot liners, inter-layer barriers, and end-turn protection in industrial motors and generators, delivering reliable Class B–F dielectric performance with exceptional tensile strength of 25,000 psi.
Transformers
Mylar® film rolls in MO and EL grades serve as interlayer insulation and barrier films in dry-type and oil-immersed transformers, offering stable dielectric performance and low shrinkage under continuous thermal stress.
Electronics
Thin Mylar® film sheets in grades A and EL are the standard dielectric material for film capacitors, PCB barriers, and flexible circuit insulation, valued for consistent dissipation factor and high insulation resistance.
New Energy
Mylar® sheet material is used in bus bars, photovoltaic modules, and EV drive systems as a lightweight, high-dielectric protective film for demanding voltage environments.
Optical & Imaging
Mylar® E grade’s exceptional transparency and high specularity make it the preferred mylar material for optical, imaging, and specialty printing applications.
Why Choose Sui On Insulating as Your Mylar® Film Supplier?
Sui On Insulating has specialized in electrical insulation materials for over 40 years, offering one of the most complete selections of Mylar® specialty films available from a single source. Contact Sui On Insulating today to request samples or discuss your Mylar® insulation material requirements.
Full Mylar® and Melinex® grade lineup — standard and specialty Mylar® film sheets and Mylar® film rolls
UL-certified supply (E93687) meeting North American safety requirements
Custom slitting, cutting, laminating, and composite processing available
Standard widths 1,000–1,450mm with precise dimensional tolerances
ISO 9001 / ISO 14001 / IATF 16949 certified manufacturing quality
RoHS & REACH environmental compliance across all products
Global distribution with experienced technical support
1. What is Mylar® insulation used for?
Mylar® insulation is used as slot liners, inter-layer barriers, capacitor dielectrics, coil winding protection, and compressor motor insulation in motors, transformers, generators, air conditioners, and electronics. Sui On Insulating supplies both standard and specialty grades for all these applications.
2. What Mylar® film specifications does Sui On Insulating offer?
Sui On Insulating supplies Mylar® film rolls and Mylar® insulation sheets ranging from 12μm to 500μm in thickness, in standard widths of 1,000–1,450mm. Multiple Mylar® and Melinex® grades are available to match specific dielectric, thermal, and mechanical requirements.
3. Are Mylar® specialty films available for North American markets?
Yes. Sui On Insulating’s Mylar® specialty films carry UL certification (E93687) and are fully compliant with North American electrical safety standards. We supply Mylar® film suppliers and manufacturers globally including the US, Europe, and Asia-Pacific markets.
4. What is the temperature rating of Mylar® insulation material?
Sui On Insulating’s Mylar® insulation material carries a temperature resistance rating of 105–130°C depending on grade, with a UL thermal index of 302°F (150°C), suitable for Class B–F insulation system requirements.
5. Can I get custom-cut mylar insulation sheets?
Yes. Sui On Insulating provides full in-house processing of Mylar® insulation sheets and Mylar® film rolls, including precision slitting, die-cutting, laminating, and composite fabrication to your exact dimensions and specifications.