Non-Asbestos Gaskets

Non-Asbestos Gaskets – The removal of asbestos from the manufacturing material makes these sheets ideal for steam, oil and water sealing. We cut Non-Asbestos Gaskets from all the major manufacturers materials including, Durlon, Klinger, Armstrong, Tedit, FMI, Johns Manville, Dx Seal, Sepco, Utex,  etc.

Non-Asbestos Material

Just as Asbestos came in multiple grades, and was combined with different rubber compounds, the same is true with non-asbestos materials. Each fiber serves as a reinforcement against pressure. Non-asbestos gaskets contain one of multiple asbestos replacements.  Common non-asbestos fibers include, Aramid, Kevlar, Fiberglass, and mineral fiber.  Each fiber and elastomer combination performs differently resulting in the need for multiple non-asbestos gasket styles.

Kevlar (an aramid fiber) is known for being approximately 2 to 9 times more durable than asbestos. These fibers then create a unique blend with different polymers to meet the needs of varieties of applications.

NON-ASBESTOS MATERIALS ARE OFTEN USED IN THE FOLLOWING APPLICATIONS:

Oil & Gas Production, Automotive, Chemical Processing, Mining,  Petrochemical, Refining, Pulp and Paper, Power generation, and may more.

Today’s major manufacturers include: Garlock, Gasket Resources Inc. (Durlon), and Thermoseal (previously Klinger USA). The majority of manufacturers are now producing off shore. Garlock produces sheet in Mexico and the USA for North American consumption. Gasket Resources Inc. produces in North America, Thermoseal produces domestically in Ohio (USA) and Internationally. Sourcing of course is a dynamic situation and subject to change.

No matter who the manufacturer is, the basics are the filler and the elastomer used. There are no two compounds (or the % of filler) that are identical, having said that, the basic elastomers are: NBR (Buna-N), SBR, EPDM, or Neoprene. If you examine which material you need (as specified by the application) and choose the non-asbestos gasket material with that elastomer you will have good results. Through the use of this method, you are now able to choose a competitive brand that will assist your application.

In general, the typical “Binders” are: NBR, SBR, Neoprene, and EPDM.

To simplify things, each material listed will indicate the “binder”, despite who the manufacturer is. This provides ease when cross-referencing equivalent materials. It is important to also pay attention to Tensile Strength (for pressure resistance), Temperature Ratings, and Compression/Recovery Ratings.

For optimal performance, also consider Size, temperature, application, media, pressure, speed (if dynamic) of your specific application.

For finished gaskets consider Bolt loads, the size of bolts, the number of bolts, the bolt material and available torque.

Each manufacture we represent has it’s own strengths and weaknesses. Durlon is our preferred brand based on the quality,  consistency and availability. Below you will find a listing of the sheet materials we can cut gaskets for you from. 

Durlon Gasket Materials,

Produced by Gasket Resources – We offer each of Durlon’s styles for superior sealing.

Durlon 5000 – Durlon^® 5000 is a commercial-grade compressed sheet gasket material for moderate service conditions. It is suitable for a continuous operating temperature of 450°F (232°C); or a maximum pressure of 1000 psi (69 bar) at ambient temperature. It is suitable for steam, oil, water, mild alkalis and acids, hydrocarbons and solvents.

Durlon 5300 – A good quality commercial grade compressed non-asbestos sheet for moderate service conditions where an ABS Product Design Assessment (PDA) Certificate 14-HS1146798-PDA certified gasket material is required. It is suitable for a continuous operating temperature of 450°F (232°C); or a maximum pressure of 1000 psi (69 bar) at ambient temperature. DURLON^®5300 is suitable for steam, oil, water, mild alkalis, mild acids, hydrocarbons, and solvents.

Durlon 7760 – A controlled swell sheet is accomplished by blending rubber compounds for a specific reaction.  By adding an SBR compound to a Nitrile Gasket material, the gasket can be caused to swell when reacting to hydrocarbons. Equal to Garlock 3760

Durlon 7900 – An economy grade general service compressed sheet with NBR rubber binder for mild service in piping and equipment and OEM applications in steam, hydrocarbons and refrigerants. An economical alternative when service ranges and applications are not severe Equal to Garlock 2250.

Durlon 7910 – Durlon^® 7910 is a good quality general service gasket for applications where an NSF/ANSI 61 certified gasket material is required. It is suitable for potable water, steam, oil, water, mild alkalis and acids, hydrocarbons and solvents; and for applications in the water treatment and reclamation, wastewater and plumbing industries. Equal to Teadit 1082-san, Thermoseal Watersil^®

Durlon 7925 – An economy grade general service compressed sheet with NBR rubber binder for mild service in piping and equipment and OEM applications in steam, hydrocarbons, and refrigerants. An economical alternative when service ranges and applications are not severe. Equal to Thermoseal C4401

Durlon 7950 – An economy grade general service compressed sheet with NBR rubber binder for mild service in piping and equipment and OEM applications in steam, hydrocarbons, and refrigerants. An economical alternative when service ranges and applications are not severe. Equal to Garlock 3000 | Teadit NA-1001

Durlon 8300 – Durlon^® 8300 is premium grade compressed sheet gasket material that is excellent in steam and hydrocarbon services in the refining, petrochemical and power generation industries. Other applications include oil, water, mild alkalis, mild acids and solvents. Equal to Garlock HTC,9850, Garlock 9900, Garlock 706, Teadit 1100, Thermoseal C4500, DX C6

Durlon 8400 – Durlon^® 8400 can be used in process piping and equipment in chemical, pulp and paper, and other general industrial applications. Also, as a unique high-performance compressed sheet Durlon^® 8400 is an excellent gasket material for use in steam, mild caustics and acids in Class 150 and 300 services. Equal to Garlock 3700, IFG-5500, Thermoseal C7400

Durlon 8500 – Our workhorse material, Durlon^® 8500 is excellent in steam, natural gas, soybean processing and with new generation refrigerants. A high-quality general service gasket material for use in a wide range of services in pulp and paper, food, beverage, pharmaceutical, chemical, refinery, gas pipeline, and general industry. Durlon^® 8500 exhibits good compressibility and recovery, excellent sealability, flexibility and cutting characteristics. Equal to Teadit NA-1090, Thermoseal C-4401, Thermoseal C-4430, Thermoseal C-4433, DX 660, DX 680, DX 880

Durlon 8600 – A quality compressed sheet gasket material for use in process industries including pulp and paper, power, petrochemical as well as general industry where a “white” gasket material is often required such as food and beverage, pharmaceutical and plastics. For services such as water, steam, air inert gases, alcohols, dilute acids, alkalis ammonia, and many other liquids and gases. Durlon^® 8600 exhibits good compressibility and recovery, sealability, flexibility and cutting characteristics. A release agent on both sides ensures good anti-stick properties. Equal to Garlock 3200, Blue Guard 3400. Teadit NA-1080, Thermoseal C6400, Thermoseal C6401, DX  770

Durlon 8700 – Durlon^® 8700 is a high performance gasket material for use in processes requiring a neoprene (CR) bonded sheet such as refrigeration services. This product has excellent resistance to ozone, oils, non-aromatic solvents, and many refrigerants. Equal to Garlock 3300, Teadit NA 1076 , Thermoseal C5400, Thermoseal C5401, DX 300

Durlon 8900 – Durlon^® 8900 is a premium grade compressed non-asbestos sheet gasket material for service conditions to 496°C (925°F) and continuous operating temperatures of -73ºC to 400°C (-100ºF to 752°F) or 13.8 MPa (2,000 psi). It is suitable for water, saturated steam, superheated steam, oil, mild alkalis and acids, hydrocarbons and solvents.

Refer to the manufacturer for the Pressure x Temperature (PxT) rating, chemical resistance, and other compatibility information. Be sure the application is within the limits of your chosen gasket material.

GSG NON-ASBESTOS (AS&P Brand): Green

GSG Non-Asbestos is our own general service gasket material. It is a compressed non-asbestos gasket sheet that is green in color. GSG’s material of construction consists of aramid fibers, mineral fibers, and inorganic fibers, all binded with a nitrile binder. It is unbranded.

GSG SPECIFICATIONS:

Maximum Service Pressure: 1422 PSI

Maximum Service Temperature: 600°F*

Recommended Maximum Continuous Service Temperature: 400°F

WHAT IS GSG TYPICALLY USED FOR?

GSG is a general use gasket with a wide range of applications.

Due to its superior sealing properties, GSG is typically recommended for oils, fuels, and for applications in gas distribution.

The most common cross-referenced to our GSG product is ThermoSeal’s product #4401.  

GSB NON-ASBESTOS (AS&P Brand): Blue

GSB Non-Asbestos is our own general service gasket material. It is a compressed non-asbestos gasket sheet that is green in color. GSB’s material of construction consists of aramid fibers, mineral fibers, and inorganic fibers, all binded with a nitrile binder. It is unbranded.

GSB SPECIFICATIONS:

Maximum Service Pressure: 1422 PSI

Maximum Peak Service Temperature: 700°F*

Recommended Maximum Continuous Service Temperature: 400°F

WHAT IS GSB TYPICALLY USED FOR?

GSB is a general use gasket with a wide range of applications.

Due to its superior sealing properties, GSB is typically recommended for oils, fuels, and for applications in gas distribution.

The most common cross-referenced to our GSB product is Garlock’s product #Blue-Guard 3000.

*Maximum Peak services temperatures are at zero PSI.

The staff at American Seal and Packing will be happy to help in the selection of non-asbestos materials to produce the best gasket for you application. You may also purchase the non-asbestos gasket material that best fits your application online at SealSales.com should you prefer to cut your own gaskets. American Seal &Packing offers numerous non-asbestos gasket manufacturers products to meet the specifications and cost objectives of your application.

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