Durlon Compressed Aramid & Phenolic Fiber | |
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| 7900 & 7950 | 8400 |
| Economical Solutions Durlon 7900 (off white) and 7950 (blue) are our economy grade aramid fiber and NBR general-purpose gasketing materials specifically engineered to deliver unsurpassed sealability, temperature resistance and bolt torque retention when service ranges and applications are not severe. | Premium Solutions Durlon 8400 (gold) is our patented phenolic / NBR next generation material that provides the widest range of chemical resistance of any compressed non-asbestos material available today. It's designed for high pH applications in the demanding services found in the pulp & paper, chemical processing and power generation industries where traditional compressed gasket materials have fallen short. |
Service & Cost Savings
| Benefits: Temperature & Chemical Resistance
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Convenience and Quality
| Perfect for Flange Insulation Kits
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Durlon Compressed Aramid Fiber | |
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| 8500 | 8600 & 8700 |
| Premium Solutions Durlon 8500 (green) our general-purpose "workhorse" material contains our unique blend of high strength aramid and inorganic fibers providing excellent results in steam, hydrocarbons, and new generation refrigerants. Durlon 8500 passed a modified API 607 fire test at an independent laboratory and has proven to be reliable in situations where temperature and pressure cycling causes failures of lesser quality materials. Benefits Versatility
Thermal Strength
HVAC OEM Service Proven
| Premium Solutions Durlon 8600 (white) is an outstanding gasket material containing our unique blend of high strength aramid and inorganic fibers providing excellent sealability in steam, condensate and dilute acids and where a "white" gasket material or an SBR binder is required. Benefits Thermal Strength
Durlon 8700 Premium Solutions Durlon 8700 (blue) is our premium neoprene (CR) gasket sheet combined with our unique blend of high strength aramid and inorganic fibers providing excellent sealability in services such as ammonia containing refrigerant systems. Benefits
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| DURLON Style | 8400 | 8500 | 8600 | 8700 | 7900 / 7950 |
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| Color | Gold | Green | White | Blue | 7900 - Off-White 7950 - Blue |
| Fluid Services | Steam, Oils, Fuels, Solvents, Caustics, Refrigerants, Dilute Acids & Alkalis | Saturated Steam, Oils, Dilute Acids & Alkalis, Solvents, Fuels, Refrigerants | Saturated Steam, Water, Dilute Acids & Alkalis, Inert Gases, Ammonia | Saturated Steam, Oils, Water, Dilute Acids & Alkalis, Refrigerants | Steam, Water, Inert Gases, Oils, Fuels, Dilute Acids & Alkalis |
| Fiber System | Phenolic | Aramid / Inorganic | Aramid / Inorganic | Aramid / Inorganic | Aramid |
| Binder | NBR | NBR | SBR | CR | NBR |
| Density (lbs. / Cu. Ft.) | 106 | 106 | 106 | 106 | 106 |
| Temperature Max. Continuous | -100 to 800ºF 554ºF | -100 to 700ºF 548ºF | -100 to 700ºF 548ºF | -100 to 700ºF 548ºF | -100 to 700ºF 400ºF |
| Pressure Max. | 1500 psig | 1500 psig | 1500 psig | 1500 psig | 1000 psig |
| Compressibility ASTM F36 | 8-16% | 8-16% | 8-16% | 8-16% | 7-17% |
| Recovery ASTM F36 | 50% | 50% | 45% | 45% | 40% |
| Creep Relaxation ASTM F38 | 25% | 20% | 20% | 20% | 20% |
| Tensile Strength Across Grain ASTM F152 | 1800 psi | 2000 psi | 1800 psi | 1500 psi | 1600 psi |
| Fluid Resistance pH Range (Ambient) | 2-13 | 3-11 | 3-11 | 3-11 | 3-11 |
| ASTM F146 - IRM 903 Oil, 5 hours @ 300ºF | |||||
| Thickness Increase | 0 to 15% | 0 to 15% | 15 to 30% | 0 to 15% | 0 to 15% |
| Weight Increase | 15% | 15% | 30% | 15% | 15% |
| ASTM F146 - ASTM Fuel B, 5 hours @ 70ºF | |||||
| Thickness Increase | 0 to 10% | 0 to 10% | 5 to 20% | 0 to 15% | 0 to 10% |
| Weight Increase | 15% Max | 10% Max | 30% Max | 15% Max | 12% Max |
| Leachable Halides | 1000 ppm max. | 1000 ppm max. | - | - | - |
| Leachable Chlorides | 400 ppm max. | 100 ppm max. | - | - | - |
| Leakage: DIN 3535 | 0.03 cc/min. | 0.03 cc/min. | 0.05 cc/min. | 0.05 cc/min. | 0.05 cc/min. |
| Volume Resistivity ASTM D257, 1/16" | 3.1 x 1013 ohm-cm | 4.2 x 1013 ohm-cm | 4.2 x 1013 ohm-cm | 4.2 x 1013 ohm-cm | - |
| Dielectric Breakdown ASTM D149, 1/16" | 14.6 kv/mm | 11.7 kv/mm | 11.7 kv/mm | 11.7 kv/mm | - |
| Gasket Factors Gb psi, 1/16" a, 1/16" Gs psi, 1/16" | 2000 0.36 0.13 | 650 0.33 200 | - | - | - |
| Flexibility ASTM F147 | 8x | 10x | 8x | 8x | 10x |
| Line Call-Out ASTM F104 | F712120-B4E22M5 | F712120-B3E12M6 | F712440-B3E24M5 | F712330-B5E45M5 | F712120-B3E22M4 |
| Note: ASTM and DIN 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. | |||||
| Warning: These materials should never be recommended when both temperature and pressure are at the maximum 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. Data reported on this web page 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. Specifications and information contained on this web page are subject to change without notice. |

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| Creep Relaxation | ASTM F38B (1/32") | 20% |
|---|---|---|
| Sealability | ASTM F37A (1/32") | .25 ml/hr |
| Klinger Hot Compression Test | Thickness Decrease 73ºF | 10% Initial |
| Thickness Decrease 572ºF | 9% Additional | |
| Compressibility | ASTM F36J | 7-17% |
| Recovery | ASTM F36J | 50% Minimum |
| Tensile Strength | ASTM F152 Cross Grain | 2200 PSI Typical |
| Change in Tensile Strength | ASTM F152 after immersion in ASTM Oil 3, 5h/300ºF | 25% Maximum Decrease |
| Weight Increase | ASTM F146 after immersion in Fuel B 5h/73ºF | 15% Maximum |
| Thickness Increase ASTM F146 after immersion in: | ASTM Oil 1, 5h/300ºF | 0-5% |
| ASTM Oil 3, 5h/300ºF | 0-5% | |
| ASTM Fuel A, 5h/73ºF | 0-5% | |
| ASTM Fuel B, 5h/73ºF | 0-7% | |
| Specification | ASTM F104 Line Call Out | F712121B3E21M6 |
| Leachable Chloride Content | F.S.A. Method (Typical) | 100 ppm |
| Density | Pounds per Cubic Foot | 112 |
| Color | Top/Bottom | Green |
| Note: Klinger material with synthetic fiber is also available with a neoprene binder (C-5400), an SBR binder (C-6400), an EPDM binder (C-7400), a Hypalon® binder (C-8200), a nitrile binder with a wire insertion (C-4408), a carbon fiber with a nitrile binder (C-4500) and carbon fiber/nitrile binder with an expanded metal reinforcement (C-4509). |
C-4401 Liquids
| C-4401 Gases & Steam
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The pressure/temperature charts shown for Klingersil compressed materials are the most current method of determining the suitability of a gasket material in a known environment. Use the pressure and temperature graphs to select the most suitable Klingersil material for your application. {1} In area one, the gasket material is suitable using common installation practices subject to chemical compatibility. |
{2} In area two, appropriate measures are necessary for installation of the gasket to insure maximum performance. Please call or refer to the Klinger-expert software system for assistance.
{3} In area three, DO NOT INSTALL GASKETS in these applications without first referring to the Klinger-expert software system or contacting Thermoseal Inc.'s technical support service. |
| These graphs were developed from testing Klinger materials. Do not use them for competitor's materials since non-asbestos gasketing materials do not have service equivalents. | |