Technical Advantage: Why PFA is the Premium Choice

PFA doesn’t just resist heat; it maintains mechanical integrity at 260°C (500°F). Its superior creep resistance means it won’t deform under load as easily as other fluoropolymers, making it the top choice for critical gaskets and diaphragms.

Test items			Typical value	Unit	Test method
Material			PFA	–	–
Total thickness			25~150	μm	–
Specific Gravity			2.12~2.17	–	ASTM D1505
Refractive index			1.345	–	ASTM D542
Light transmittance			96	%	ASTM E424
Moisture Absorption Rate			＜0.02	%	–
Fracture Strength			24	Mpa	ASTM D882
Elongation at break			300	%	ASTM D882
MIT bending cycles			100,000	cycles	ASTM D2176
Melting point			305	℃	ASTM D3418
Long-term use temperature			260	℃	UL-746B
Heat shrinkage rate (150°C × 10 min)			±2	%	ASTM D3595-97
Flame retardancy			VTM-0	–	UL-94
Limiting Oxygen Index			95	VoI%	ASTM D2863
Dielectric strength	0.025mm film		250	kV/mm	ASTM D149
	1mm film		33
Dielectric constant	1MHz		2.02	–	ASTM D150
	1000MHz		2.01
Dielectric loss		1MHz	0.0003	–	ASTM D150
		1000MHz	0.0005
Volume Resistivity			＞1.0*10¹⁷	ohm.cm	ASTM D257
Surface resistivity			＞1.0*10¹⁶	ohm/sq	ASTM D257

Critical Engineering Features

Ultra-Low Extractables: Our PFA resin is selected for its high purity, making this film essential for Semiconductor Wet Processing. It will not leach metallic ions or contaminants into ultra-pure water (UPW) or aggressive etching chemicals.
Melt-Processable & Weldable: Unlike PTFE, PFA is a true thermoplastic. It can be heat-sealed, vacuum-formed, and welded to create leak-proof liners for chemical tanks or 3D printer vats.
Universal Solvent Resistance: PFA is virtually unaffected by almost all known chemicals, including concentrated hydrofluoric acid, nitric acid, and highly corrosive bases, even at elevated temperatures.
Cryogenic Toughness: Maintains significant impact resistance and flexibility at temperatures as low as -200°C, ideal for aerospace and cryogenic storage applications.

High-Stakes Application Scenarios

Semiconductor & Photovoltaics: Lining for wafer carriers, wet bench components, and ultra-pure fluid handling systems.
Composite Mold Release: High-temperature release film for carbon fiber autoclaves where FEP would melt or stick.
Chemical Tank Linings: Thermoformed liners that provide a non-reactive barrier for aggressive chemical storage.
High-Performance Heat Sealing: Used as a hot-melt adhesive layer between PTFE fabrics or as a standalone heat-sealable bag for hazardous waste sampling.

Customization & OEM Precision

We provide PFA solutions tailored to specific dielectric and mechanical tolerances:

Thickness Precision: Available from 25μm (0.001″) to 500μm (0.020″) with consistent gauge control.
Surface Modification: One-side Corona Treatment (C-Treatment) available for applications requiring the film to be bonded to metals or other polymers.
Optical Grades: High-clarity versions for solar collectors and visual monitoring windows in chemical reactors.
Custom Slitting: Precision narrow-width slitting for cable insulation and spiral wrapping.

FAQ

Q: Why choose PFA over the cheaper FEP film?

A: Choose PFA if your continuous operating temperature exceeds 200°C or if your application involves high mechanical stress. PFA has significantly better flex life and stress-crack resistance than FEP.

Q: Can PFA film be used in food contact applications?

A: Yes. Our PFA films are manufactured from resins that are FDA compliant and RoHS/REACH certified, making them safe for high-temperature food processing and pharmaceutical packaging.

Q: Is PFA film UV stable?

A: PFA is one of the most UV-stable materials on earth. It will not degrade, discolor, or lose mechanical strength even after decades of intense solar exposure.