Garlock FAWN GYLON 3500 User Manual
MATERIAL PROPERTIES
*
Color: Fawn
Composition: PTFE with silica
Fluid Services1: Strong acids (except hydrofluoric), steam, solvents, hydrocarbons,
chlorine and cryogenics
Temperature2, °F (°C)
Minimum: -450 (-268)
Continuous Max: +500 (+260)
Pressure2, Maximum, psig (bar):
1200 (83)
P x T (max.)2, psig x °F (bar x °C)
1/32 and 1/16": 350,000 (12,000)
1/8": 250,000 (8,600)
Flammability: Will Not Burn
Bacterial Growth: Will Not Support
Meets Specification: ABS (American Bureau of Shipping), FDA (Food and Drug
Administration) and USDA (US Department of Agriculture)
TYPICAL PHYSICAL PROPERTIES
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ASTM F36 Compressibility, %: 7-12
ASTM F36
Recovery, %:
40
ASTM F38 Creep Relaxation, %: 18
ASTM F152
Tensile, Across Grain, psi (N/mm2): 2000 (13.8)
ASTM D792 Specific Gravity: 2.10
ASTM D1708 Modulus @ 100% Elongation, psi (N/mm2): 1600 (11.0)
ASTM F433 Thermal Conductivity (K), W/m°K (Btu.·in./hr.·ft.
2
·°F): 0.36-0.45 (2.50-3.15)
ASTM D149 Dielectric Properties, range, volts/mil.
Sample conditioning 1/16" 1/8"
3 hours at 250°F:
362 -
96 hours at 100% Relative Humidity 61 -
ASTM F586 Design Factors 1/16" & Under 1/8"
"m" factor: 5.0 5
"y" factor, psi (N/mm2):
2750 (19.0) 3500 (24.1)
ROTT Gasket Constants, 1/16": Gb=949 a=0.253 Gs=2.6
1/8": Gb=1980 a=0.169 Gs=0.393
ASTM F104
Line Call Out:
F451999A9B4E99K6M6
(3)
SEALING CHARACTERISTICS
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Gasket Load, psi (N/mm2):
Internal Pressure, psig (bar):
Leakage
Notes:
Garlock FAWN GYLON® 3500
1000 (7)
4640 (32)
9.8 (0.7)
580 (40)
ASTM F37B
DIN 3535- 4
Fuel A
Gas Permeability
1
See Garlock chemical resistance guide.
2
Based on ANSI RF flanges at our preferred torque. When approaching maximum pressure, continuous operating temperature, minimum temperature
or 50% of maximum PxT, consult Garlock Applications Engineering.
3
Increase in IRM Oil #903 (fourth numeral 9 is thickness, fifth numeral 9 is weight): Thickness = 1.0% max, Weight = 2.0% max. Sixth numberal 9: %
Increase in Water: Weight = 1.0% max. A9: Leakage in Fuel A (Isooctane), Gasket Load = 1,000psi (7.0N/mm2), Pressure = 9.8psig (0.7bar): Typical
= 0.22ml/hr, Max = 1.0ml/hr. E99: % Increase in ASTM Fuel B: Weight: 2.0% max., Thickness: 1.0% max.
0.22 ml/hr.
<0.015 cc/min
This is a general guide and should not be the sole means of selecting or rejecting this material. ASTM test results in accordance with ASTM F-104;
properties based on 1/32" (0.8mm) sheet thickness unless otherwise mentioned.
* Values do not constitute specification Limits
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