Among these applications, coating has a special place and is used to. 4161 Intl: 001. The PI films were immersed in an aqueous solution of 1 M KOH for 2, 5, and 10 min, at a fixed temperature (T) of 50 C. the company began with the Electrical Insulation Material and Technology to develop "polyimide film" " polyimide material"products, is the earliest, specifically engaged in polyimide film special engineering materials research. Kapton® and other polyimide films in aircraft insulation and cabling as it can withstand temperatures from –269°C to 400°C. 3 times that of monolayer PI-40, respectively. Invented by the DuPont Corporation in the 1960s, Kapton remains stable across a wide range of temperatures, from 4 to 673 K (−269 to +400 °C). They exhibit very low creep and high tensile strength. 0325 sales@cshyde. Guilin Electrical Research Institute Co. 150mm (on demand) Kapton / Polyimide is a high-performance films which can undergo variety of extreme work environments and overcome the technical difficulties. 8–14 and Inagaki et al. 2015-05-19. The price of PET is lower, but it is not heat resistant, so PI is used for welding. We proposed an idea [19] and also did baseline examinations to assert compatibility of the flexible substrate in thin film processes for microelectromechanical systems (MEMS) [20]. 1961年 杜邦公司 首次推出聚酰亚胺的商品。. 00 (25. 7. 40 × 40 × 0. PI graphite film with high crystallinity and preferred orientation is similar to HOPG as shown in Figure 5 and has a high thermal conductivity up to 1900 W/m K in the planar direction [ 2 ]. 300°C) (thermoplastic bonding). Conductive coating made of indium tin oxide (ITO) is used for ESD protection. Types AV, AF, and NP APICAL ® Polyimide Film are listed by Underwriters Laboratories, Inc. Coefficient of Thermal. , 2001; Wang et al. . Polyimide is short for PI and is named Kapton in DuPont. This allows use of thinner films in applications where strength is critical. 1. It is highly rated by various fields as a material essential for advanced industries, exhibiting excellent mechanical, electrical, and chemical characteristics. Molecular structure design for colorless transparent polyimide films (Ni et al. 1 In the present paper, we performed the Moisture Evo. Kapton ® MT+ films have high thermal conductivity of 0. 1. 0. Film Elongation at Break, MD 75 % 75 % Orientation not specified; ASTM D882 Poissons Ratio 0. Common properties include high electrical. 22 ± 1. PI film with excellent physical. This relatively thick film allows the use of photosensitive polyimide for the same purpose as other thick resists, such as SU-8 [73] . 3 % and 5. The unique combination of thermal, electrical. Polyimide film Features and Applications: Polyimide film belongs to class H kapton. 48 Value for Kapton® HN. Kapton® HN is the recommended choice for applications that require an all-polyimide film with an excellent balance of properties over a wide range of temperatures. LR-PI 1000FPC. 5. Prior to the TEEY measurement, the backside of the samples was coated with. The washed PI films were called as “pristine PI”. 0. Finally, the porous polyimide films were peeled off by soaking the glass plate in hot water for some time. English (USA). Polyimide based film. 5. All Photos (1) Synonym(s): IM301450. Gener ally, aromatic PI is produced by two step method: First step is polyamic acid (PAA) synthesis from dianhydrideAdhesion data for FPC can be referenced in the adhesion to Kapton® technical bulletin. - Heat-resistant protective film. Kapton® FPC film is treated on both sides and has an excellent balance of physical, chemical and electrical properties over a wide temperature range. Get more information about: the chemistry behind polyamides and methods to synthesize them. However, it shows deep color and strongly absorb visible light. PI also has excellent thermal stability ( T g > 400 °C) and chemical resistance, thus it has been used as an insulation film in flexible printed circuit boards (PCB) for the electronics industry, and adhesive and. POLYIMIDE FILM Technical Data Sheet DuPont™ Kapton® FPC polyimide film is treated on both sides and has the same excellent balance of physi-cal, chemical and electrical properties over a wide temperature range offered by general purpose Kapton® HN. Thermally Conductive Kapton® Polyimide Film. 48 0. ASTM D1894-90 Coefficient of Friction, Static 0. The tensile strength and modulus for the PI/SiC fiber filled film are also improved by 159% and 91% respectively in comparison to the solution cast SiC/PI film. Kapton® FPC Polyimide film, treated on both sides of film to increase dimensional stability and adhesion properties, available 25" wide x lineal foot. Colorless polyimides (CPIs) with outstanding mechanical properties are essential materials in the production of flexible display panels, foldable windows, and even spacecraft cockpits. DuPont™ Kapton® FPC POLYIMIDE FILM Technical Data Sheet DuPont™ Kapton® FPC polyimide film is treated on both sides and has the same excellent balance of physi-. It has the characteristics of high wiring density, lightweight, thin thickness, and good bendability. 3M™ Polyimide Film Tape 5413 with DuPont™ Kapton® polyimide film and silicone adhesive used for PCB solder masking and other high temperature applications. In applications where superior adhesion and low shrinkage are important, Kapton® FPC is the polyimide film of choice. The DuPont™ Kapton® polyimide film. PI also has excellent thermal stability ( T g > 400 °C) and chemical resistance, thus it has been used as an insulation film in flexible printed circuit boards (PCB) for the electronics industry, and adhesive and. 78-3. com. As expected, and reported previously (Shin et al. Kapton® FN polyimide film is a heat sealable grade that retains the unique balance of properties of Kapton® HN over a wide temperature range. Polyimide film supplier Manufacturer Korea, Thailand, India, Vietnam. 48 0. com Founded in 1997, is located in Jiangsu, covers an area of 21235 square meters, construction area of 5612 square meters. It can also help to Increase power out put by 10-30% for positive temperature coefficient heaters. Adhesion data for FPC can be referenced in the adhesion to Kapton® technical bulletin. ASTM. 2 billion dollars worldwide;. Polyimide film is a special engineering plastic film with excellent mechanical. 1. The rise in demand for consumer electronics such as modern computers, LEDs, mobiles, and others is likely to drive the growth of the polyimide films industry over the forecast. PI film with excellent physical, electrical, and mechanical properties over a wide temperature range (from −269 °C to 400 °C) has opened up new design and application areas to plastic films . 25,40,50,75,100. 7. Kapton® EN is the. 48 and dielectric loss comprised between 0. PROPERTY. 2 Cover Film. As expected, and reported previously (Shin et al. Polyimide film has high and low temperature resistance, excellent electrical. 006) as well as excellent mechanical properties. So Kapton is a flame retardant and can expose heat up to 700 Fahrenheit not affect the appearance and performance of the label. Surface imide hydrolysis of Kapton HN polyimide films in a 1 M KOH aqueous solution was studied using dynamic contact angle measurements, X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (TOF-SIMS). 312 types of film available in stock, order today. Thermal Endurance : 400 °C Minimum. Certification Kapton® FPC meets IPC 4202B requirements. 47mil, 12μ, 1/3oz) to very thick (2. Kapton (200 HN) with 50. 0125mm (on demand) 0. The reason why the PI film is the best choice for FCCL fabrication is that FCCLs require a base film with such characteristics as flexibility, excellent insulation, good thermal resistance, and high mechanical strength. Slide 1 of 10. 8mm dia from Goodfellow. 025mm Grade DuPont™ Kapton® B Colour Black Coil Width 610mm Diameter 4mm - 50. Certification Kapton® FPC meets IPC 4202B requirements. 15–19The resulting novel PI showed a 5% weight loss temperature (T5d) at 360 °C under a nitrogen atmosphere. 66. high-temperature carrier film—Solve plicated and useless problems of single-sided FPC board. Polyimide films exhibited good insulating properties with dielectric constants values in the range of 2. Kapton® FPC Polyimide film, treated on both sides of film to increase dimensional stability and adhesion properties, available 25" wide x lineal foot. Film to film. 025mm thick 20mm coil W: Thickness 0. Tensile Strength,. R. Kapton ® HN offers a unique combination of properties at the highest level, which are recommended for many applications in numerous branches. Researchers successfully reduced the absorption of visible light in the PI films by inhibiting or weakening the CT interactions inside the PI films, thus regulating the colors of PI films from traditional brown-yellow to pale-yellow, or even to colorless [10–12]. Kapton® has been successfully used in applications at temperatures as low as -452°F (-269°C) and as high as 752°F (400°C). Table 1 – Typical Properties of Kapton® FPC at 23°C (73°F)Overview of Kapton® Film. A schematic showing the fabrication of thin PI electrodes is illustrated in Fig. The dielectric constant and loss at 104 Hz are reduced to 2. FPC Polyimide Film (similar to Kapton FPC Film, APICAL Type NP Film) is a treated film and has the same excellent balance of physical, chemical and electrical properties over a wide temperature range offered by general-purpose type HN film. 8 W/m·K with available thicknesses down to 38 μm up to 127 μm. 60. This study showed that the enhanced adhesive strength of polyimide films with sputtered copper by argon plasma was strongly affected by the surface. Order online now Free standard delivery and 48 hour despatch on over 150,000 in-stock advanced scientific materialsHigh Heat Resistance 6051 Polyimide PI film. Amber plain-back film is also known as Type HN. For PVP thick-layer coating, pristine PI samples were set on a spin coater (1H-D2,. DuPont Adhesiveless All-Polyimide Solutions. 23°, 20. 50. Depending on the spacecraft orbit, it is necessary to. A typical value of tension used by capacitor manufacturers is about 10 MPa while the typical tensile strength for various commercially available capacitor films is in the range of 160–200 MPa [ 41 ]. General Kapton® information: Kapton® is synthesized by polymerizing an aromatic dianhydride with an. Kapton polyimide films are one of the most commonly used flexible and robust substrates for flexible electronic devices due to their excellent thermal, chemical, mechanical, and electrical properties. USD 1. Polyimide (IM301450) | (PI), film, thickness 0. DuPont™ Kapton® FPC polyimide film is treated on both sides and has the same excellent balance of physical, chemical and electrical properties over a wide temperature range offered by general purpose Kapton® HN. 2 Classification according to the Structure of FPCB. Next, colorless PI (CPI) composite films were prepared by dispersing 0. PI samples used in experiments were of Kapton- H polyimide (chemical name: poly 4-4' Oxydiphenylene Pyromellitimide, PMDA-ODA) and were procured in film form (DuPont, USA; thickness: 40 μm). Certification Kapton® FPC meets IPC 4202B requirements. The. , Japan) as the etchant. Because this film dissipates heat, it is often used for printed circuit boards and power supplies. 94 vertical burning test for thin films. View Price. APICAL™PIXEO™(Two layer type copper clad laminates) - Flexible copper-clad laminated. However, due to its dielectric properties, charge storage and release can be at the origin of electrostatic discharges that are hazardous for the surrounding electrical equipment. This type is exceptional for applications requiring adhesive or adhesiveless constructions. In applications where superior adhesion and low shrinkage are important, Kapton® FPC is the polyimide film of choice. The emerging technique of carbonization of polyimide (PI) by direct laser writing receives great attention for its flexibility, versatility, and ease-of-patterning capability in creating a variety of functional laser-induced graphene (LIG) sensors and devices. It has a unique combination of thin, high temperature and drug resistance, good electrical insulation. Pyralux® HXC Coverlay can be used to encapsulate etched details in flexible and rigid. 122. Film Thickness Width Length List Price Add To Cart/Request Quote 18-3F-FPC : N/A 3 mil. 5. I. - Coverlay film. Product IM30-FM-000102 Polyimide/PI Film 0. Typical coatings are: Dunmore can also do laminating and perforating of polyimide film . 1 · 2 4 Sample codes A, B, C. FPC single and double-sided circuit board. Kapton® FPC offers superior dimensional stability and adhesion, and is specifically designed for flex circuit manufacturers. However, such films feature an inert and highly hydrophobic surface that inhibits the deposition of functional materials with water-based. The ideal research result was that k value of PI film at 1 MHz was reduced to 2. 63 0. 01 and 0. It contains an imide ring on the main chain and is one of the organic polymer materials with the best overall. DuPont™ Kapton® FPC polyimide film is treated on both sides and has the same excellent balance of physical, chemical and electrical properties over a wide temperature range offered by general purpose Kapton® HN. Both have good formability and a second PI layer [27]. A. Layup and Lamination. Table 1 – Typical Properties of Kapton® FPC at 23°C (73°F)The global polyimide film market size was valued at USD 2. This material offers outstanding longevitiy and is hightly resistant to an extremely wide temperature range (-269°C to 400°C). For applications where extremes of heat and vibration are the norm. Quick Details Applicable Industries: Medical equipment such as blood analyzers and test tube heaters Computer peripherals like laser printers Curing of plastic laminates Medical equipment such as blood analyzers and test tube heaters Semiconductor Processing Equipment Thermal transfer equipment Medical. - FPC stiffener. 00 (25. The difference between HN and FPC is that FPC polyimide film is treated on both sides to accept adhesives like acrylic or. Film to film. Kapton® Polyimide Film, Type FPC, 25" wide : Film Thickness N/A. DuPont™ Kapton® 300HN Polyimide Film, 75 Micron Thickness. The strength of the sputtered oxide bond is comparable to the strength of the best chemical adhesive method available. 03 at 1Hz at room temperature. The PI films were immersed in an aqueous solution of 1 M KOH for 2, 5, and 10 min, at a fixed temperature (T) of 50 C. Rue General Patton L-2984 Luxembourg Tel: 352-3666-5935 Asia DuPont TaiwanGuilin Electrical Research Institute Co. Free standard delivery and 48 hour despatch on over 150,000 in-stock advanced scientific materialsKapton PI is an aromatic PI film that has been commercially available since the mid-1960s. 8mil, 70μ, 2oz) and the dielectric thickness can vary from 0. Buy 0. 63 Value for Kapton® HN. ASTM D-374. Kapton® Polyimide Tape. DuPont™ Kapton® 300HN Polyimide Film, 75 Micron Thickness. Products include biaxially oriented polyimide film, black PI film, corona resistant PI film, etc. PI AM2. Available Services. Polyimide is a kind of macromolecule polymer containing cyclic imide group in molecular chain. Low dielectric PI with porous structure. Its thermal conductivity properties make it an ideal choice for use in controlling and managing heat in electronic assemblies such as printed circuit boards. five salivation method of polyimide film production line, 8 FEP coated polyimide film production line. It offers excellent physical, electrical, thermal and chemical resistant characteristics. 0. At present, nearly 80% of flex. Slitting and Packging. 2 ± 2. We review the research progress of PI separators in the field of energy storage—the lithium-ion batteries (LIBs),. L 0. Coating a single polyimide layer can result in a film thickness up to 40 μm. The surface energy of Kapton HN increased quickly upon KOH treatment due to the. DIRECTION. DuPont™ Kapton® HN polyimide film Technical Data Sheet DuPont™ Kapton® HN general-purpose film has been used successfully in applications at tempera-tures as low as -269°C (-452°F) and as high as 400°C (752°F). It is a polyimide (PI) and it is usually available in a form of a homogeneous film wound on to a drum . Polyimide film is a special engineering plastic film with excellent mechanical. View Pricing. Each. Stiffeners can be Polyimide (PI), FR4, Stainless Steel and Aluminum in our flex circuit manufacturing, and each kind FPC stiffeners have various thicknesses for choice. To improve the adhesion of the Au film, a 10 nm Cr layer was deposited before the Au film without breaking vacuum. POTENTIAL HEALTH. 2. Introduction. It is a professional factory producing polyimide film (Bopi) with the most advanced salivary biaxial drawing process in China. Figure 6. Kapton films, either due to adhesive or cohesive failures, were 174-860 N/m, 79-179 N/m, and 7-12 N/m for samples bonded with sputtered, PECVD and ALD oxide, respectively. 025 mm, size 300 × 300 mm, condition metallized on one side with 30 nm. Product Description. The surface energy of Kapton HN increased quickly upon KOH treatment. Flexible PCBs can vary from single layer to double layer. Typical Properties for DuPont™ Kapton® EN Polyimide Film. 025mm --Coil Width 20mm -Size 10mm x 10mm Product IM30-FM-000115 Kapton® B Film 0. The film is coated on both sides with a thin fluoropolymer layer. Typically, a light-colored and highly transparent film. The third band: temperature 80℃,high pressure 30kg/ cm², 5min; Application: FPC board assembly Adhesion data for FPC can be referenced in the adhesion to Kapton® technical bulletin. Pyralux® FR acrylic based laminates are made with DuPont™ Kapton® polyimide film and are available in sheet form as single or double-sided clads in a wide variety of thicknesses. Width:520mm~1040mm. For example, the 80-μm-thick Kapton™ is deep yellow with a cut-off wavelength (λ 0) as high as 455 nm. PI films were cut into pieces (2. Column：Industry information Time：2018-12-15. In this paper, an experimental study and analysis of the effects of environmental relative humidity (RH %) on the transport mechanisms of electrical charges in 50 μm thick Kapton HN polyimide (PI) films have been presented. Scheme 2 shows a schematic of how the ReaxFF simulations are set up and Scheme 3 illustrates the process of polyimide model preparation. DuPont™ Kapton® HN polyimide film Technical Data Sheet DuPont™ Kapton® HN general-purpose film has been used successfully in applications at tempera-tures as low as -269°C (-452°F) and as high as 400°C (752°F). Polyimide (PI) is a thermosetting plastic and exhibits very low creep and high tensile strength compared to other thermoplastics. The resulting PI film was colorless and transparent with a transmittance of 87. When the resin. Ought to not erect,shut to the hearth,heat or immediate. 847. 2 Double-layer Board . The processing condition of copper clad polyimide film or polyimide stiffener sheet: 1. 75 mils can be found on an Flex PCB. 800. 66. 8 ± 1. So V grade polyimide film has superior dimensional stability and lower coefficient of expansion. DuPont™ Pyralux® TK bondply composites are constructed of DuPont™ Kapton® polyimide film coated on both sides with a fluoropolymer adhesive. Aluminum based circuit board. In this paper, an experimental study and analysis of the effects of environmental relative humidity (RH %) on the transport mechanisms of electrical charges in 50 μm thick Kapton HN polyimide (PI) films have been presented. 80 GPa 406 ksi ASTM D882 Coefficient of Friction, Dynamic 0. 1 wt % to 0. Excellent Insulation. Free standard delivery. 31 billion in 2022 and is expected to expand at a compound annual growth rate (CAGR) of 7. 1 Introduction. Functional Inks for IME and High-T Applications is a technical paper by DuPont that introduces the advantages and applications of its functional inks for in-mold electronics and high-temperature environments. In this work, microwave oxygen plasma, reactive ion etching oxygen plasma, combination of KOH and HCl solutions, and. It’s by far the best insulating film material, referred to as the “golden film”. DuPont™ Kapton® 250FN029 Polyimide/FEP Composite Film. LR-PI 1000FPC. AVALIAÇÕES DE CLIENTES — Kapton® HN Polyimide. Quality of Life. To achieve an adhesion improvement, a very thin layer of a nitrogen-containing plasma polymer is deposited onto the surface of polyimide films, which binds copper chemically via complex building. It has a unique combination of thin, high temperature and drug resistance, good electrical insulation. Polyimide (IM301450) | (PI), film, thickness 0. O preço dos filmes Kapton varia, compare e economiza. Kapton® polyimide films make innovative design solutions. Precisely align films and foils. DuPont de Nemours (Luxembourg) S. L. It has a unique combination of thin, high temperature and drug resistance, good electrical insulation. VN Polyimide Film (equivalent to Kapton® VN Film, APICAL ® Type NP, LIREN® VN) is a low-shrinkage film, synthesized by polymerizing an aromatic dianhydride and an aromatic diamine. Kapton Film (KAPTON FILMS) poliimida PI Kapton filme e fita Kapton é fabricado pela DuPont, e está disponível através do site Professional Plastics. Despite its high price, aromatic polyimide (PI) film is commonly employed as insulating material in electrical and mechanical equipment, such as the insulation between the coil in wind turbine generator and traction motor, due to its high heat-resistance and exceptional electrical and mechanical properties [1, 2]. GF66798589. Polyimide (PI) is one of the most dominant engineering plastics with excellent thermal, mechanical, chemical stability and dielectric performance. DuPont™ Kapton® FPC polyimide film is treated on both sides and has the same excellent balance of physical, chemical, and electrical properties over a wide temperature range offered by general purpose Kapton® HN. 5 m, grade kapton hn. +86 137 5259 9392 (Mr. Film to film. DuPont™ Kapton® 300FPC Polyimide Film, 75 Micron Thickness. This is achieved by combining Kapton® HN with FEP fluorocarbon resin in a composite structure. Kapton Polyimide Plastic Sheets | McMaster-Carr. Kapton® HN – A general-purpose film that has been used successfully in applications at temperatures as low as -269°C (-452°F) and as high as 400°C (752°F). The start-up imide-ring opening reaction plays a crucial role in activating inert PI for subsequent Ni. Upilex has excellent wear resistance and toughness. HN Polyimide Film (e. In this chapter, we would like to provide a review and. These laminates provide lightweight, both thin and thick, and highly reliable. Polyimide (PI) films are the common and important components on spacecraft for thermal control. Core ID:76mm (3”)or 152mm (6”),Core resources:Paper or plastic. 1. The 70-0160-3918-5 is an amber 3M™ Polyimide Film Tape with DuPont™ Kapton® polyimide film and silicone adhesive. ®. 聚酰亚胺作为一种特种工程材料，今日已广泛应用在航空、航天、微电子、纳米. It has excellent balance of electrical , mechanical , physical, thermal, and chemical properties over a wide range of temperatures from -269°C to 400°C (-452°F to 752°F). WILMINGTON, Del. 0 mil) Kapton® Type E and EN films have superior dimensional stability, low CHE, a CTE close to copper, and a high modulus. Kapton® HN is the recommended choice for applica-Kapton® FPC – Kapton ® FPC is the same tough polyimide as Kapton® VN film, but has improved bondability for use in the flexible printed circuit market. DuPont de Nemours (Luxembourg) S. g Kapton® HN, APICAL® Type AV, LIREN® HN film) is a general-purpose film, synthesized by polymerizing an aromatic dianhydride and an aromatic diamine. DuPont de Nemours (Luxembourg) S. When the SiC content is 6 wt% in PI/SiC nanofibers, the CTE values for the PI film containing 25 wt% PI/SiC nanofibers are 2. Thermal Endurance : 400 °C Minimum. Buy 0. 122. , 2015). Thermally Conductive Kapton® Polyimide Film Because this film dissipates heat, it is often used for printed. Recommended Products. Recent research and development of colorless and optically transparent polyimide (CPI) films have been reviewed. Polyimide (PI) is a kind of favorite polymer for the production of the membrane due to its excellent physical and chemical properties, including thermal stability, chemical resistance, insulation, and self-extinguishing performance. Categories: Polymer; Film; Thermoset; Polyimide, TS; Polyimide, Thermoset Film. Aluminum based circuit board. The choice of Polyimide Kapton as a substrate of the antenna was due to its good physical balance, chemical, electrical properties and high thermal stability. 34 Value for Kapton® HN Secant Modulus 2. GF38496594 (PI), laminate, thickness 0. Since it was reported in 2014, laser-induced graphene (LIG) has received growing attention for its fast speed, non-mask, and low-cost customizable preparation, and has shown its potential in the fields of wearable electronics and biological sensors that require high flexibility and versatility. Film to film. 150. 63 0. film is remarkably lower than that of Kapton PI-film. 34 0. MAF02 is close to Kapton® Type VN. Copper sulfide thin films of 75 and 100 nm thickness were coated on DuPont Kapton HN polyimide foils of 25 µm thickness by. DuPont™ Kapton® FPC-MBC black polyimide coverlay laser processes with the same. - Insulating materials for aircraft wiring. DuPont™ Kapton® 300A Polyimide Film, 75 Micron Thickness. In their work, the films were cleaned with. Kapton. TEST METHOD. Using bondply can eliminate a layer of Kapton® and a layer of adhesive in low count. China Polyimide Kapton Film manufacturers - Select 2023 high quality Polyimide Kapton Film products in best price from certified Chinese Film Wire, Ac Film suppliers, wholesalers and factory on Made-in-China. 80 times lower than the solution cast PI/SiC film. 250. As shown in Table 2, a low colored film exhibited a low solar absorptivity value, the fluorine-containing PIs with high transparency had low solar absorptivity, and the solar absorptivity value of PI-4 films was 0. L. The DuPont™ Kapton® polyimide film. The process for most extensively developed Kapton™ polyimide utilizes the monomer pyromellitic dianhydride (PMDA) and 4,4’-oxydianiline (ODA) and is illustrated in Figure 1. Three important observations were noted from the profiles: (1) at a depth in the Cr film between 10 nm and 20 nm, the atomic ratio of Cr and oxygen in the Cr film was approximately 2:1, (2) the oxygen concentration increased at the Cr film surface and the. Kapton ® 's advanced nature and wide range of applications are supported by its many excellent properties. The material is widely used in the manufacture of FPC flexible circuit boards for circuit protection and insulation. The films were cut into small square shaped samples of 25 mm. 005 in: Width N/A. 355. Polyimide and PDMS are the most common materials used in the packaging of flexible electronics.