Garlock GYLON® 3503 PTFE Gasketing, Barium Sulfate Filler, Oxygen Service

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Garlock GYLON® 3503 PTFE Gasketing, Barium Sulfate Filler, Oxygen Service
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE)
Material Notes:	PTFE with barium sulfate filler - Oxygen service. Improved sealing performance over conventional PTFE Unique manufacturing process minimizes cold flow problems typical of skived and expanded PTFE sheets Excellent bolt torque retention Withstands a wide range of chemicals for extended service life Media: Strong caustics, Moderate acids, Chlorine, Gases, Water, Steam, Hydrocarbons, Cryogenics and aluminum fluoride Information provided by Garlock Rubber Technologies
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Physical Properties	Metric	English	Comments

Permeability	0.015	0.015	Gas Permeability, cc/min; DIN 3535 Part 4

Mechanical Properties	Metric	English	Comments
Tensile Strength	13.8 MPa	2000 psi	across grain; ASTM F152

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	260 °C @Pressure 8.27 MPa	500 °F @Pressure 1200 psi	Continuous
Minimum Service Temperature, Air	-268 °C	-450 °F

Descriptive Properties
Color	Off-White
Compressibility, %	4-10		ASTM F36
Creep Relaxation, %	11		ASTM F38
Sealability ASTM F37B, ml/hr	0.04		ASTM Fuel A

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PGARL813 / 157521

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