Polyester film 6021 is a high-performance electrical insulation material widely used in motors, transformers, and various industrial applications that require stable dielectric strength and long-term thermal resistance. Manufactured from premium PET base film, 6021 polyester film offers excellent mechanical strength, smooth surface quality, and reliable resistance to moisture, chemicals, and heat. Its consistent thickness, dimensional stability, and high tensile strength allow it to maintain insulation integrity even in harsh environments with continuous thermal and electrical stress. Polyester film 6021 is commonly applied as slot insulation, phase insulation, and interlayer insulation in low- and medium-voltage electrical equipment, ensuring improved safety, extended service life, and reduced maintenance costs. The material is also easy to process through cutting, punching, laminating, and forming, making it suitable for automated mass production. With outstanding dielectric properties and a long service lifespan, 6021 polyester film is an ideal insulating solution for manufacturers seeking reliable performance, cost efficiency, and compliance with global insulation standards. As demand grows for durable, high-quality electrical insulation materials, polyester film 6021 remains a preferred choice in the global market, making it a highly searched and competitive keyword for SEO optimization.
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Polyester film cutting tray
Polyester film and polyester fiber nonwoven composite material (6630DMD) is an essential Class B insulation product widely used in the electrical manufacturing industry for its excellent balance of mechanical strength, electrical reliability, and cost efficiency. This three-layer composite—consisting of polyester nonwoven fabric on both sides paired with a polyester PET film core—offers superior flexibility, high tensile strength, stable dielectric performance, and excellent bonding with insulating varnish. Designed for motors, transformers, coils, industrial power equipment, appliances, and power tools, 6630DMD composite insulation remains one of the most frequently used insulating laminates in the global market.
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