PFA Film

Get to Know Cathay™ PFA Fluoropolymer Films

Cathay™ PFA films are highly chemically inert and solvent resistant; have low permeability to liquids, gases, moisture, and organic vapors; and exhibit very good dielectric properties, high continuous service temperature, favorable antistick and low frictional properties, as well as good weathering and optical properties. Additional features of PFA films are superior creep resistance at high temperatures, excellent low-temperature toughness, and exceptional flame resistance.

These films offer the highest continuous use temperature of 260°C (500°F) of any melt-processable fluoropolymer film type. They offer many of the performance properties of PTFE films in a clear, transparent form.

Typical applications of Cathay™ PFA films are in chemical processing, wire and cable, electronics, mold release in processing composites, circuit board laminates, chemical pumps, tank linings, shrink roll covers, and rupture discs and gaskets.

Related Products

CATHAY™ ETFE Film
CATHAY™ PFA Film
CATHAY™ FEP Film


Techyours™ PFA Film Offers
	• The best high and low temperature resistance amongmelt process fluoropolymers: • Continuous service temperature range from -254 to 260°C (–425 to500°F) • Melt temperature range: 300 to 310°C (572 to 590°F) • Chemically inert and solvent resistant to virtually allchemicals • Outstanding dielectric properties over a wide range offrequencies and temperatures. • High dielectric strength, over 6,500 V/mil for 1-mil film(260 kV/mm for 25 micron film) • Excellent light transmission and clarity • Free of plasticizers, processing aids, or additives


Which Techyours™ is Right for You?
	PFA S Grade
	TCI's PFA Premium Grade (S) films are manufactured from 100% virgin premium Everflon grade PFA resin with MFI range of 1.5-2.5. It is the grade of choice for dielectric applications, and/or where visual perfection
	• 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

	PFA W Grade(Weldig)
	PFA Welding Grade (W) films offer the same physical, mechanical, and thermal properties of PFA PG films at a 15-20% cost savings. This makes PFA W films the perfect economical solution for heat sealing, welding, and other melt adhesive applications without high aesthetic requirements.
	• 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

Techyours™ PFA Film In the World


Who is Seeking Techyours™ Fluoropolymers Tubing

		Techyours™ offers a complete range of composite process molding materials and products for the high-end composite molding industry, including mold release and vacuum bagging films.Our composite molding films are designed to withstand extreme temperatures while maintaining their release characteristics and are available in various colors to allow for easy identification. Techyours™ mold release films (R) for composite molding combine the chemical inertness and universal non-stick properties of PTFE polymers with maximum conformability and heat resistance. Our films can withstand the highest temperatures in the composite molding temperature range, making them ideal for use in the aerospace, wind turbine, and automotive industries.
	Techyours™ ETFE (ethylene tetrafluoroethylene) films are melt extruded fluoropolymer films ideally suited for architectural applications. ETFE foils/films, also known as ETFE fabric membranes, can be heat-sealed, thermoformed, and laminated to various substrates. Techyours™ offers ETFE to create tensile membrane structures with exceptional transparency, elasticity, and durability around the world. It can be purchased in clear, printed, or colored varieties, all of which maintain excellent chemical, weather, and stress-crack resistance and low flammability. ETFE is currently one of the most sustainable materials on the market, since it can be 100% recycled after its long service life.
	Techyours™ can provide a multitude of films/foils for use in the solar industry, including ETFE and PVDF films. The combination of excellent solar light transmission, UV resistance, and outdoor durability makes Techyours™ extruded films the materials of choice for front and back sheets of flexible PV panels and glazing of solar collectors. Due to their excellent dielectric performance, fire resistance, and high solar transmittance, PVDF and ETFE films are well suited for use in the back sheet and front sheet glazing of PV panels. They are used extensively as an external material for the back sheet, protecting the PV Module from the environment for an extended period. Techyours™ also offers plasma-treated surfaces for bonding or lamination.
Techyours™ FEP, PFA, ETFE, Matte ETFE and cast PTFE fluoropolymer films possess a combination of excellent dielectric properties, chemical and temperature resistance, and weldability. These properties make our fluoropolymer films useful in many electrical applications, including circuit board laminates and high temperature insulation tapes for wire/cable wrapping. ETFE films/foils are used as release films for electronics, since they retain exceptional release abilities and moderate cushioning at high temperatures. ETFE films are also broadly used as cushioning/release media in Film Assisted Molding processes of semiconductors and integrated circuits. Techyours™ fluoropolymer films reduce release force when the integrated circuit is removed from the mold and increases productivity by removing the need to clean the mold between each use.
		Techyours™ manufactures cast PTFE, ETFE, and FEP foils/films for use as vial cap liners, septa and stopper applications, sampling bags, flexible culture bags, blood storage bags, 2-D fluid bags, and storage or transportation containers for the pharmaceutical industry. Our high-performance fluoropolymer films are chemically inert, have an unlimited shelf life, and can be heat sealed, adhesive-bonded or laminated.
	Techyours™ maintains our status of first in fluoropolymer capabilities by manufacturing the highest quality materials and providing optimal solutions for the chemical industry including FEP, PFA, ETFE, PVDF, and PTFE films/foils as well as our patented Everflon™ material. Some applications of Techyours™ films include non-metallic expansion joints, roll covers, tank liners, floating roof seals, spray shields/ flange covers, protective face shields, rupture disc and chemical pump diaphragms. Highly pure chemicals can also be stored and transported in sampling bags and flexible containers made from Techyours™ high-performance fluoropolymer films. Techyours™films can be customized to fit certain thickness and color requirements.
Techyours™ provides ETFE materials to fabricate replacement antenna covers and replacement planar radome covers. Techyours™ superior mechanical properties, low dielectric constant, and low interference with microwave frequencies make our materials the optimal solution for radome covers for devices such as radar antennas, flexible planar radomes, and microwave communication antennas.
		Using non-porous, Techyours™ spray shields guarantees performance against harmful spray out and leakage regardless of the severity or duration of chemical exposure. The versatility and cost-effectiveness of this type of spray shield allow it to be used in almost all industrial settings, including marine, offshore, pharmaceutical, chemical processing, FDA-approved, cryogenic, and clean room applications.

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Our Purpose and Values

Techyours™ drive everything we do as innovators and industry leaders. We use the power of chemistry to improve products and processes that make the world a better place.


Materials Fluoropolymers are a family of high-performance plastics characterized by strong carbon-fluorine bonds that provide exceptional chemical resistance, thermal stability, and unique physical properties like non-stick surfaces and electrical insulation.
	FEP	PFA	ETFE
	The development of PTFE (polytetrafluoroethylene) was a significant breakthrough in polymer science. The special processing requirements of PTFE led researchers to develop a melt–processable version of PTFE resulting in FEP. This new resin was compatible with existing processing methods and equipment. Melt processability also allowed for long continuous extrusions of FEP in applications such as wire and cable wrapping. While similar to PTFE in many of its properties, FEP has its own preferred attributes. It has a slightly higher coefficient of friction, lower continuous service temperature, and is more transparent than PTFE. FEP also offers lower gas and vapor permeability properties and excellent UV resistance. FEP’s expanded attributes make it ideal for a diverse range of applications from environmental monitoring equipment to medical devices.	PFA is well recognized for its ability to maintain its integrity in extreme temperatures even when exposed to caustic chemicals. PFA also comes in high purity versions that can be extruded into tubing forms and is SEMI F–57 certified. High Purity PFA tubing is used in critical fluid transport tubing applications that demand a very low level of extractables. PFA can withstand temperature environments of up to 500 °F / 260 °C and can be extruded in convoluted tubing forms that provide a highly flexible conduit. The qualities of PFA include excellent lubricity, clarity, flexibility, and chemical resistance. This versatility has led to PFA being a popular material selection in the semiconductor, chemical, energy, aerospace, automotive, pharmaceutical, fiber optics, and medical industries.	ETFE is distinguished from perfluopolymers (totally fluorinated polymers) as a partially fluorinated copolymer of ethylene and TFE. This chemical modification provides significantly higher strength relative to PTFE, FEP or PFA. It is less flexible than PTFE, but has superior impact strength, abrasion and cut through resistance. Addition of a third component to the chemical structure creates a modified ETFE that has lower weight per unit volume, is stiffer and tougher than PTFE, PFA or FEP. These properties allow it to withstand greater physical abuse during its lifetime. For example, glass reinforced ETFE has outstanding wear characteristics and may be used for bearing applications. ETFE is also suitable for pump impellers or moving parts of equipment that are operating in chemically aggressive environments (check to ensure chemical compatibility).
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