FAQ | Flexible Graphite

Flexible Graphite FAQs

What gaskets can I use for Steam? What is superheated steam?
What do I need to be concerned with when Gaskets are installed in Grooves or recesses?
What Commercially High Temp Gasket Materials Are Available
How high a temperature do Phelps Gasket Sheets support?
Does Phelps have any gaskets that are approved to the NSF 61 for Drinking Water?
Which gaskets work in Flange Isolation Kits?
What is Gasohol, and which gasket materials are good for Gasohol applications?
Can I use painters tape on cork?
What is the recommended Shelf Life for gaskets?
Which gaskets can I use for FDA applications?
  • What gaskets can I use for Steam? What is superheated steam?
    Related: Compressed Gasket Sheet

    Steam can be found in plants in two forms: saturated and superheated. Saturated steam is standard boiler steam and has a definite temperature for each Read more...


  • What do I need to be concerned with when Gaskets are installed in Grooves or recesses?

    Gaskets installed in grooves or tongue and groove flanges require one extra consideration: the compressed height of the gasket must be considered. Thi Read more...


  • What Commercially High Temp Gasket Materials Are Available

    It depends on various other factors such as Pressure, and on the Media. In general, the high temperature limit for most commercially available "Rubbe Read more...


  • How high a temperature do Phelps Gasket Sheets support?

    Phelps carries a wide range of products to support various Temperatures, Pressure, and Media. In general Phelps' carries sheets that can go 2400° Read more...


  • Does Phelps have any gaskets that are approved to the NSF 61 for Drinking Water?
    Related: Gasket Material

    Yes, Phelps carries multiple products suitable for Drinking Water applications. Phelps Style 7100 - Aramid with Nitrile Binder, which is direc Read more...


  • Which gaskets work in Flange Isolation Kits?
    Related: Gasket Material

    Customers will occasionally ask for a flange insulation or isolation kit or gasket to electrically insulate one flange from the mating flange. Kits ar Read more...


  • What is Gasohol, and which gasket materials are good for Gasohol applications?
    Related: Gasket Material

    Gasohol is a blend of gasoline with an alcohol— usually 10 - 15% ethyl alcohol. In such applications most rubber gaskets are NOT recommended. F Read more...


  • Can I use painters tape on cork?

    Yes but be very careful how long you leave the tape on it and carefully remove it because the adhesive on the back on the tape “MAY” damag Read more...


  • What is the recommended Shelf Life for gaskets?

    Please visit Phelps' General Age of Elastomers for detaisl on each type of materials - (non)Elastomers, Graphites, PTFE etc. Read more...


  • Which gaskets can I use for FDA applications?

    There are quite a few classes of materials that are safe for use in Food applications, and thereby FDA compliance. Phelps Style 7205 is F Read more...


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