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Garlock Gylon® 3500 Gasketing Material
Fawn PTFE with silica filler
 |
Expert Mechanical Seal Repair | Waterjet Cut | Precision Gasket Cutting
Application
Garlock Gylon® 3500 is truly a superior and unique material. The exclusive properties of Gylon® are combined to deliver its superior performance to comply with today's clean air requirements through sealability and torque retention. Asbestos-free Gylon® gasket materials routinely out-performs all conventional PTFE products by drastically minimizing gasket creep and cold flow problems.
Composition
Garlock Gylon® 3500 is premium grade compressed sheet gasket material that is excellent in strong acids except hydrofluoric, solvents, hydrocarbons, water, steam, chlorine, and cryogenics, Conforms to FDA regulations. For oxygen service, specify "Style 3502 for oxygen service."
Tighter Seal
Improved performance over conventional PTFE. Reduced product loss and emissions.
Reduced creep relaxation
Unique manufacturing process minimizes cold flow problems typical of skived and expanded PTFE sheets.
Reduced creep relaxation
Unique manufacturing process minimizes cold flow problems typical of skived and expanded PTFE sheets.
Chemical resistance
Withstands a wide range of chemical for extended service life in a wide variety of applications.
Cost savings
Cuts operational cost through reduced Fluid Loss, Energy Comsuption, Maintenance Costs, Inventory Costs and Waste.
Largest Sheet Sizes*
Offers some of the largest sheet sizes in the industry. Improved material utilization reduces waste.
Branding and color coding
Easy identification of superior GYLON products. Reduces misapplication and use of unauthorized, inferior substitutes.
Typical Properties
| Thickness | 1/16" |
|---|---|
| Color: | Fawn with Blue Brand |
| Fiber: | PTFE with silica |
| Fluid Service: | Strong acids (except hydrofluoric), steam, solvents, hydrocarbons, chlorine and cryogenics |
|
Temperature Min: Max: |
-450°F (-268°C) 500°F (260°C) |
| Pressure: max, bar (psi) | 83 (1,200) |
| Compressibility, ASTM F36: | 7 to 12% |
| Recovery ASTM F36: | 40% |
| Creep Relaxation ASTM F38: | 18% |
|
Tensile ASTM D1708: Across Grain, psi (N/mm2) |
2000 (13.8) |
| Specific Gravity ASTM 792: | 2.10 |
|
Modulus @100% Elongation: psi (N/mm2) |
1600 (11.0) |
|
Thermal Conductivity(K): W/m°K (Btu. -in./hr. -ft.2 -°F) |
0.36 - 0.45 (2.50 - 3.15) |
| Gasket Load: psi (N/mm2) ASTM F37B - Fuel A DIN 3535 - Nitrogen |
1000 (7) 4646 (32) |
| Internal Pressure: psi (bar) ASTM F37B - Fuel A DIN 3535 - Nitrogen |
9.8 (0.7) 580 (40) |
| Leakage: ASTM F37B - Fuel A DIN 3535 - Nitrogen |
0.22 ml/hr. 0.015 cc/min |
| Flammability: | Will Not Support Flame |
| Bacterial Growth: | Will Not Support |
| Meets Specifications: | ABS (American Bureau of Shipping), FDA (Food and Drug Administration) and USDA (US Department of Agriculture) |
|
Note: ASTM properties based on 1/16" sheet thickness except ASTM F38, which is based on 1/32" sheet thickness. This is a general guide only and should not be the sole means of accepting or rejecting this material. The data listed here falls within the normal range of product properties but should not be used to establish specification limits nor used alone as the basis of design. *For applications above Class 300, consult your representative. |
|
Dielectric Properties, range, volts/mil.
| Thickness | 1/16" | 1/8" |
|---|---|---|
| 3 hours at 250°F | 362 | |
| 96 hours at 100% Relative Humidity | 61 |
P x T (max.)1
| Thickness | 1/16" | 1/8" |
|---|---|---|
| psig x °F (bar x °C) | 350,000 (12000) | 250,000 (8600) |
Proposed ASTM F586 Gasket Constants
| Thickness | 1/16" | 1/8" |
|---|---|---|
| M | 5.0 | 5 |
| Y | 2750 (19.0) | 3500 (24.1) |
| Gasket Constants | ||
| Gb psi | 949 | 1980 |
| a | 0.253 | 0.169 |
| Gs psi | 2.6 | 0.393 |
| *Gasket Constants based on proposed ASTM Draft 10.01 | ||
Available Sheet Sizes
| Nominal Thickness | Sheet Sizes | Order Code | Weight / Sheet lbs (kg) | |
|---|---|---|---|---|
| 1.64" (0.4 mm) | 60 x 60 | 1524 x 1600 | 35014-6601 | 4.7 |
| 1/32" (0.8 mm) | 60 x 60 | 1524 x 1600 | 35014-6602 | 9.4 |
| 1/16" (1.5 mm) | 60 x 60 60 x 90 70 x 70 |
1524 x 1524 1524 x 2286 1778 x 1778 |
35014-6604 35014-6904 35014-6604 |
18.8 28.2 25.6 |
| 1/8" (3.0 mm) | 60 x 60 60 x 90 70 x 70 |
1524 x 1524 1524 x 2286 1778 x 1778 |
35014-6608 35014-6908 35014-7704 |
37.5 56.3 51.0 |
| 1/4"(6.0 mm) | 60 x 60 | 1524 x 1524 | 35014-6616 | 75 |
|
Note: 1mm thickness or, 60" x 120" (1.5m x 3m) sheet sizes available on special order, other custom lengths available on request
Warning: Durlon gasket materials should never be recommended when both the temperature and the pressure are at the maximums listed. Properties and applications shown are typical. No application should be undertaken by anyone without independent study and evaluation for suitability. Never use more than one gasket in one flange joint, and never reuse a gasket. Improper use or gasket selection could cause property damage and/or serious personal injury. The data reported is a compilation of field testing, field service reports and/or in-house testing. While the utmost care has gone into publishing the information contained herein, we assume no responsibility for errors. The information and specifications contained in this website are subject to change without notice. This revision cancels and obsoletes all previous editions. |
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