FAQ | Product & Materials

Most Viewed FAQ's

How high a temperature do Phelps Gasket Sheets support?
How can I predict the compressive load generated by squeezing an O-ring?
What is the difference between EP, EPR, and EPDM?
Why is my O-ring leaking?
What is NEMA Type 6P enclosure?
What is NEMA Type 1 enclosure?
Why is post-cured silicone important for rubber for high temperature gasket applications?
Does Phelps supply Aflas® or Parker O-Rings?
What is Controlled Density in Spiral Wound Gaskets?
Can pump and valve packings be used interchangeably?
Does Phelps supply Chemraz® O-Rings or Perfluoroelastomer?
Do I need to use anti-seize for? Should I use anti-sieze?
Does Phelps make or supply Viton® O-Rings?
Why it is not recommended to apply pressure-sensitive adhesives onto solid EPDM rubber, low durometer (10 to 40 Shore A) Neoprene and Buna-N?
What is NEMA Type 5 enclosure?
  • 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...


  • How can I predict the compressive load generated by squeezing an O-ring?
    Related: O-Rings, Cords, Molded Parts

    The force required to compress an O-ring primarily depends on the hardness of the O-ring, its cross section, and the amount of compression. Even if al Read more...


  • What is the difference between EP, EPR, and EPDM?
    Related: Elastomers

    EPR is an abbreviation for Ethylene-propylene copolymer, while EPDM is an abbreviation for Ethylene-Propylene Terpolymer. From a functional standp Read more...


  • Why is my O-ring leaking?
    Related: O-Rings, Cords, Molded Parts

    If you have the O-Ring seal with you, Does the seal appear damaged, deformed, swollen or physically changed in any way? If YES, then please refere Read more...


  • What is NEMA Type 6P enclosure?

    Designed for indoor and outdoor use Degree of protection for personnel, against access to hazardous internal components Degree of protection of the Read more...


  • What is NEMA Type 1 enclosure?

    Designed for indoor use Degree of protection for personnel, against access to hazardous internal components Degree of protection for equipment conta Read more...


  • Why is post-cured silicone important for rubber for high temperature gasket applications?
    Related: Elastomers

    Some silicone rubber compounds utilize curing agents that require a secondary post-cure to finish the curing process. Although most silicones can pass Read more...


  • Does Phelps supply Aflas® or Parker O-Rings?
    Related: O-Rings, Cords, Molded Parts

    Phelps supplies makes it's own custom and standard O-Rings, in addition to supplying Parker O-Rings. Many customers ask for Aflas® O-Rings, which is a Read more...


  • What is Controlled Density in Spiral Wound Gaskets?
    Related: Spiral Wound Gaskets

    Controlled Density is a term used in Spiral Wound gaskets to ensure optimum filler density across the windings to achieve consistent compression and e Read more...


  • Can pump and valve packings be used interchangeably?
    Related: Compression Packing

    In general, you some pump packing can be used in valves, but valve packing must not be used in pump application. Some packing is specifically designed Read more...


  • Does Phelps supply Chemraz® O-Rings or Perfluoroelastomer?
    Related: O-Rings, Cords, Molded Parts

    Chemraz® is registered trademark of Greene, Tweed for perfluoroelastomer. Unless you are looking for Chemraz®, Phelps recommends perfluoroelastomer th Read more...


  • Do I need to use anti-seize for? Should I use anti-sieze?

    Using anti-seize on your hardware such as the bolts, nuts and springs assures consistent, even loads are being applied. Anti-seizes are made up of var Read more...


  • Does Phelps make or supply Viton® O-Rings?
    Related: O-Rings, Cords, Molded Parts

    Viton® is a DuPont Dow Elastomers trademark for fluorocarbon elastomer. To avoid trademark infringement, Phelps refers to this type of material under Read more...


  • Why it is not recommended to apply pressure-sensitive adhesives onto solid EPDM rubber, low durometer (10 to 40 Shore A) Neoprene and Buna-N?
    Related: Elastomers

    EPDM compounds often contain certain chemical additives, such as paraffins, which migrate to the surface over time. When this happens, an adhesive bac Read more...


  • What is NEMA Type 5 enclosure?

    Designed for indoor use Degree of protection for personnel, against access to hazardous internal components Degree of protection of the equipment co Read more...


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