Cathay™ FEP Film
Get to Know Cathay™ FEP Fluoropolymer Films
Cathay™ FEP films are transparent; thermoplastic; and can be heat sealed, thermoformed,vacuum formed, heat bonded, welded, metalized, laminated, and combined with dozens of other materials. They can also be used as an excellent hot-melt adhesive. FEP films offer high chemical resistance; heat resistance; good dielectric properties; mechanical toughness, and long-time weatherability. of Everflon™ PFA.
Cathay™ FEP films offer excellent chemical resistance and release properties and can also be easily fabricated. Compared to PFA, FEP films are lower in cost and temperature and have a low dielectric constant and dissipation with a continuous use temperature of 205°C and are suitable for use in cryogenic and high-temperature applications .
Typical applications for Cathay™ FEP films are in solar collector windows, in pharmaceutical packaging; sealing of PTFE-coated fabrics; antigraffiti coverings; protection against extreme corrosion, fading or cracking; as mold release in aircraft industry; in printed circuit board manufacture; as autoclavable storage bags or liners; as lens covers, and in electret condenser microphone.
Techyours™ FEP Film Offers
• Excellent chemical resistance in corrosive environments
• Excellent peeling performance
• Low dielectric constant and dissipation
• Continuous use temperature is 400°F (205°C), suitable for low and high temperature applications
• Superior dielectric and electrical insulation properties
• UV stability, long-term performance in outdoor applications
• Processability, such as heat sealing, thermoforming, welding and thermal bonding
Which Techyours™ is Right for You?
FEP S Grade
This film grade utilizes the low dielectric constant and dissipation over a wide range of temperatures and frequencies for low-signal distortion and attenuation in flexible printed circuit and flat cable applications. The high surface and volume resistivity minimizes current leakage and provides excellent insulation in wire and cable applications.
• Manufactured out of 100% virgin premium grade Everflon FEP resinwith MFI range of 5-10
• Best suited for applications where high dielectricperformance is required, such as PCB laminates and wire &cable applications
• Grade of choice for protective, decorative, see-through andother applications where visual appearance and clarity areimportant
• Meets ASTM D3368 specification for Type I FEP film
FEP W Grade(Weldig)
Type W (mechanical grade) film is an ideal economical solution for applications that don’t require high aesthetic standards, such as hot melt adhesive (welding tape) application. FEP W film possesses all physical, mechanical, and thermal properties of FEP S grade, while offering up to 15% savings.
• Offers 15-20% cost savings vs.S grade
• Perfect economical solution for heat sealing, welding, andother melt adhesive applications that don’t have highaesthetics requirements
• Meets ASTM D3368 standards for Type I - general purposeFEP film
FEP M(High MW)
M grade film is a translucent film made from high molecular weight resin for applications where high flex life, stress-crack-resistant, and heat seal performance are required. These applications include items such as tank linings and diaphragms.
• Offers superior stress-crack resistance and flex enduranceperformance (250,000 cycles MIT test)
• Material of choice for chemical tank linings, pump diaphragms and rupture discs
• Meets ASTM D3368 standards for Type III FEP film
FEP R(Rlease)
• Due to its superior non-stick performance and up to 205°C(400°F) service temperature, FEP is the material of choicein high temperature composite molding
• Features high elongation and excellent conformability tocomplex contoured molds
• Standard colors include red, violet and white. Custom colorsavailable upon request
• Available in a variety of perforated patterns
• Meets AST
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