PTFE Fabrics

Heat sealing fabrics with excellent release surfaces, electrical properties, chemical and temperature resistance

About PTFE Fabrics

two rolls and several swatches of PTFE tapes in various colors PTFE fabrics, or heat sealing fabrics, consist of a woven fiberglass and are coated with a PTFE resin. They are extremely resistant to high temperatures, contain outstanding electrical properties, have excellent release surfaces and superior chemical resistance.

PTFE fabrics come in a variety of grades such as standard grade, premium grade, mechanical grade, porous grade, anti-static grade, and tear and crease resistant grade.

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Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes available upon request. Available in roll stock.

PTFE FABRIC OPTIONS

7038, 7058, 7108, and 7148 Standard Grade PTFE Fabrics

7069 Premium Grade PTFE Fabric

Other PTFE Fabric Grades Available

Tech Tip – PTFE coated fabrics feature a smooth surface and commonly used for a release surface for heat-sealing & food processing. Because of the chemical resistance and high heat properties of PTFE fabrics they are also commonly used in gasket manufacturing, heat shrink tunnels or composite molding/curing.

Typical Properties of PTFE Fabric

	Units	7038	7058	7069	7108	7148
Substrate type		Woven Fiberglass	Woven Fiberglass	Woven Fiberglass	Woven Fiberglass	Woven Fiberglass
Coating medium		PTFE	PTFE	PTFE	PTFE	PTFE
Nominal coated weight	lb/yd²	0.240	0.440	0.590	0.910	1.350
Nominal overall thickness	in	0.0026	0.0045	0.006	0.009	0.0135
Operating temperature	°F	-100°F - 500°F	-100°F - 500°F	-100°F - 500°F	-100°F - 500°F	-100°F - 500°F
Nominal tensile strength	lbs/in of width	100/75	160/150	175/160	310/175	500/300
Nominal tear strength	lbsf	2.00/1.50	5.00/5.00	5.00/4.00	12.00/7.00	20.00/15.00
Nominal dielectric strength	volts/mil	1,350	1,000	1,200	810	550