In transformers and coils, PEN film takes on critical tasks in interlayer insulation and winding insulation. The combination of high dielectric strength and temperature resistance makes it possible to guarantee reliable phase isolation even under extreme operating conditions. <\/p>\n
In capacitors, the material reaches its peak performance in high-voltage applications up to 300kV\/mm. As a capacitor film, PEN offers an excellent alternative to more expensive materials without compromising on safety. The low moisture absorption and high stability make it the ideal choice for use in demanding capacitors. <\/p>\n
Flexible Printed Circuits (FPC) benefit significantly from the mechanical properties of PEN films. As a substrate material for printed circuit boards, it offers the necessary rigidity while maintaining flexibility. These properties are particularly in demand in modern electronic devices, where miniaturization and reliability are equally important. <\/p>\n
Adhesive tapes for electrotechnical applications use PEN as a carrier material to ensure reliable connections even at high temperatures and in chemically aggressive environments. The chemical resistance to various chemicals makes this case particularly valuable. <\/p>\n
Other Industrial Sectors<\/h3>\n
In medical technology, sterilizable films for medical devices enable new fields of application. The possibility of steam sterilization at high temperatures makes PEN a preferred material for critical medical applications. <\/p>\n
Optical displays and labels use the excellent UV resistance and optical clarity of the material. In combination with dimensional stability, durable and precise optical components are created. <\/p>\n
Automotive engineering and aerospace rely on PEN films in areas with extreme temperatures and chemical stresses. Under the hood of vehicles or in aircraft engines, the material proves its worth due to its exceptional heat and chemical resistance. <\/p>\n
Technical Specifications and Manufacturing<\/h2>\n
The technical data of polyethylene naphthalate film show impressive values that clearly set it apart from other plastic films. With a density of 1.36 g\/cm\u00b3, the material is in the optimal range between lightweight construction requirements and mechanical robustness. The tensile strength of 230 to 350 MPa exceeds most standard polyester films and reaches values that are otherwise only achieved by significantly more expensive high-performance plastics. <\/p>\n
The biaxial stretching process during manufacturing imparts its characteristic properties to PEN films. Controlled stretching in two directions creates an optimized molecular structure that maximizes both mechanical strength and dimensional stability. This process is crucial for the uniform distribution of properties across the entire film surface.<\/p>\n<\/div>
![\"The](\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271344%27%20height%3D%27768%27%20viewBox%3D%270%200%201344%20768%27%3E%3Crect%20width%3D%271344%27%20height%3D%27768%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" "\\"Quality")
<\/span><\/div>Available film thicknesses range from thin 12 \u00b5m for special electronic applications to robust 250 \u00b5m for mechanically stressed components. This wide range of thicknesses makes it possible to find the optimal balance between material and component costs for every application. <\/p>\n
Standard widths are typically offered in rolls up to 1020 mm wide, with custom-made products possible according to customer requirements. The roll as a delivery form facilitates processing in automated production processes and reduces material waste. <\/p>\n
The quality standards UL 94 VTM-2, IEC 60674-3-8:2017 and RoHS compliance guarantee compliance with international standards. These certifications are of crucial importance, particularly in regulated industries such as electrical engineering, medical technology and automotive technology. The NDC (Non-Destructive Control) methods during production ensure consistent quality. <\/p>\n
PEN Film Property Profile<\/h3>\n<\/div>\n\n
\n\n\n| Property<\/th>\n | Value<\/th>\n | Unit<\/th>\n<\/tr>\n<\/thead>\n |
\n\n| Density<\/td>\n | 1.36<\/td>\n | g\/cm\u00b3<\/td>\n<\/tr>\n |
\n| Tensile strength<\/td>\n | 230-350<\/td>\n | MPa<\/td>\n<\/tr>\n |
\n| Glass transition temperature<\/td>\n | 155<\/td>\n | \u00b0C<\/td>\n<\/tr>\n |
\n| Dielectric strength<\/td>\n | up to 300<\/td>\n | kV\/mm<\/td>\n<\/tr>\n |
\n| Shrinkage<\/td>\n | 0.1-1.0<\/td>\n | %<\/td>\n<\/tr>\n |
\n| Thickness range<\/td>\n | 12-250<\/td>\n | \u00b5m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n |
![\"P\u00fctz](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2022\/10\/business-newsletter-2.webp\" "\\"P\u00fctz")
<\/span><\/div><\/div><\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2022\/10\/Behoerden-Puetz.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2025\/03\/Raumfahrtindustrie.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"Automotive\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2022\/10\/Automotive.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2022\/10\/Elektrik.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2025\/03\/Etiketten.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2025\/03\/Kaschierung-Puetz.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2025\/03\/Msaschinenbau.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2025\/03\/Medizintechnik.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2022\/09\/Druckindustrie.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>![\"\"](\"https:\/\/www.puetz-folien.com\/wp-content\/uploads\/2025\/03\/verarbeitende-Industrie.webp\")
\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n<\/div>