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Garlock GYLON® 3565 ENVELON® PTFE Gasketing, Glass Microsphere Filled

Category Polymer , Thermoplastic , Fluoropolymer , PTFE , Polytetrafluoroethylene (PTFE), Glass Filled, Molded
Manufacturer Garlock Rubber Technologies
Trade Name GYLON®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Garlock GYLON® 3565 ENVELON® PTFE Gasketing, Glass Microsphere Filled.pdf
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Material Notes:
PTFE with aluminosilicate microsphere filler.Soft, deformable exterior conforms to surface irregularities; ideal for worn, warped or pitted flangesStable blue core improves cold flow resistanceLow bolt load requirements ensure a tight seal on glass-lined or wavy flangesDirect sintering of GYLON® layers prevents leak paths and adhesive contaminationMedia: Moderate concentrations of acids and caustics, hydrocarbons, solvents, cryogenics, and glass-lined equipmentInformation provided by Garlock Rubber Technologies
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 12.4 MPa
1800 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
Electrical Properties Metric English Comments
Dielectric Strength 11.9 kV/mm

@Temperature 121 °C,
Time 10800 sec
301 kV/in

@Temperature 250 °F,
Time 3.00 hour
0.0625 in. thickness; ASTM D149
8.70 kV/mm

@Thickness 1.59 mm
221 kV/in

@Thickness 0.0625 in
100% RH for 96 hours; ASTM D149
Compliance Properties Metric English Comments
FDA Yes
Yes
Descriptive Properties Value Comments
Compressibility, % 35-50
ASTM F36
Creep Relaxation, % 35
ASTM F38
Sealability ASTM F37B, ml/hr 0.33
ASTM Fuel A
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