Our Gasket and Gasket Materials Services

If you want fast or hard to find gaskets and gasket materials we can help!

Flexible Graphite Gaskets

Flexible Graphite is the most versatile of sealing products. We offer sheet gasket materials and gaskets made from graphite. The brands we offer include; Grafoil, FMI, Durlon, Thermoseal, Generic unbranded. Which Graphite is right for your application? We can help.

Expanded PTFE Gaskets

Expanded PTFE also called EPTFE is a soft and conformable material that is clean, has a 0 - 14 ph range making it ideal for a wide range of food and chemical applications. The temperature range is capable for cryogenic to +500 F applications.

Non-Asbestos Flange Gaskets

We offer Durlon, FMI-Spa, Thermoseal, Garlock, Frenzlit, Grafoil and other brands

Viton Gaskets

Viton Gaskets are perfect for a wide range of chemical and high temp rubber services.


Gaskets are commonly produced by cutting from sheet gasket materials, such as gasket paper (beater addition), Non-asbestos, Rubber, EPDM, Nitrile, Buna, Neoprene, Flexible Graphite, Grafoil, Aflas, Kalrez, Viton, Silicone, Metal, Mica, Felt or a plastic polymer such as PTFE, Peek, Urethane, or Ethylene Propylene (EP). In the past, the gasket material selected for specific applications may contain have contained asbestos.

Today's sealing products manufacturer's include: FMI, Garlock, Thermoseal (Klinger), Teadit, and Durlon. In the United States they longer produce or offer any asbestos containing products. Gasket materials containing asbestos have been claimed to have caused Asbestosis. Of course it would take the grinding of gasket material to release the fibers and then the breathing in of those fibers....possible but in the real world this would be rare. Wetting or oiling a gasket before grinding for removal greatly reduces any risk (not grinding is even better). Asbestos gasket material is still used in most of the rest of the world and is a very effective low cost material.

It is usually desirable that the gasket be made from a material that is compressible such that it tightly fills the space it is designed for, including any slight irregularities. The most common misconception when selecting a gasket materials thickness is to choose a gasket material that is too thick. The thicker the material the more likely the material being contained can weep through the pores of the gasket material itself. This is a greater issue with some materials than others. A rule of thumb is to have the material thick enough to compensate for any surface face irregularities and to permit some compression. The required compression for your gasket material will depend on many factors including:

  • Surface area
  • Pressure being sealed
  • Size of bolts (assuming bolts are being used)
  • Number of bolts
  • Condition of the bolts
  • Lubrication on the bolts

All must be considered when determining torque. Torque data must be determined using all of the above and should be provided by an engineer. In most cases unless your gasket is a standard ANSI or API flange using Ring or Full Face gaskets torque data will be difficult to come by (due to staffing and the fear of law suits). In most cases the old tighten it tight enough to stop any leaks but not too tight as to completely crush the gasket is generally accepted.

Gasket Materials

Over compression removes the ability to recover. This is also true of expanded PTFE, once over compressed it will have no recovery and therefore will not longer adapt to maintain a seal. The common strategy of "The more compressive load exerted on the gasket, the longer it will last" is generally true of elastomeric materials since elastomers (rubbers) are not compressible but deflect compression. Many materials such as non-asbestos compressed gasket materials and beater addition (ie; Armstrong) materials contain elastomers in the mix of material they are produced from, making them difficult to over compress.

One of the more desirable properties of an effective gasket material in industrial applications is the ability to withstand high compressive loads. Most industrial gasket applications involve bolts exerting compression well into the 14 MPa (2000 psi) range or higher. This is why Non-asbestos gasket materials are so widely used in industrial gasket material applications.

Gaskets and Gasketing

We have prepared this gasket material catalog as a guide to selecting the right material for the job.

  • Waste Water
  • Terminals
  • Oil Rigs
  • Power Gen
  • Facilities
  • Refining

Gasket Materials Selection

American Seal & Packing can assist you in determining which gasket material will last longer in your application.

Silicone Gaskets
Silicone Gaskets and Gasket Material
Neoprene Gaskets
Viton Gaskets FKM Gasket Material in rolls or strips
Viton Gaskets
Flexible Graphite Gaskets and Gasket Material

Our Products

American Seal & Packing offers a wide range of gasket materials.

Aflas Gasketing

Aflas Gasketing

Aflas sheet gasket material for chemical and steam applications that Viton or FKM just can't handle.

Armstrong Gasketing

Armstrong Gasketing

The gaskets which are using Armstrong materials are referred to as Armstrong gaskets.

Buna Gasket Material

Cork Gasket Material

Cork blended with rubber is one of the most commonly used gasket materials. Cork seals with minimal bolt load.

EPDM Gasket Material

EPDM Gasket Material

EPDM is a black plate finish sheet with superior resistance to weathering, ozone and UV exposure.

EPTFE Gasket Material

EPTFE Gasket Material

EPTFE (Expanded PTFE) is a Universal sheet EPTFE gasket material for most services. Seals rough and irregular surfaces.

Mica Gasket Material

Mica Gasket Material

Mica gasket material is exceptional in it resistance to high heat. Good for temperatures to 1800 F.

Our Recent Gaskets

Our Recent Gaskets Materials News and Press Release here

Neoprene Gasket

Neoprene Gasketing

Neoprene gasket material comes in four primary forms; closed cell (wet suit material), open cell, diaphragm, and homogeneous.

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Nitrile Gasket

Nitrile Gasket

Nitrile Gaskets ? These type of gaskets are made using nitrile corks which are cheap and have great oil resistance capabilities.

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PTFE Gasketing

PTFE Gasketing

PTFE Sheet Gasket Material comes in several forms. The first thing that must be determined is what type of PTFE gasket material your looking for.

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Rubber Gasketing

Rubber Gasketing

Rubber gaskets and gasket materials come in many rubber compounds with various properties. We can help you navigate the right compound for your applications.

Our Happy Clients

American Seal and Packing has been assiting industry with gaskets and gasket materials for over 30 years. Read our testimonials.

"I just wanted to drop a quick email thanking you for your hard work and quick trunaround of our order. In this day of automation and needing a part numbers to place an order, it was nice to get a real person on the phone that knew the product they were selling. Thanks for the solution to a big problem. Keep up the good work!"

-Jenifer Robertson(PA - Chemex)

Get in Touch..?

1537 E. McFadden Ave. Suite A, Santa Ana, California, CA. 92705.