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    • From raw material to the end product
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  • Rubber items
    • O-rings
      • Introduction
      • Considerations on the use of O-Rings
        • Introduction
        • Static seal and dynamic seal
        • Use stresses
      • O Ring's seal
        • Introduction
        • Housing project of the static seal
        • Housing project of the dynamic seal
      • The assembly of the O-Rings
        • Introduction
        • Housing characteristics
        • Assembly stress
        • Maintenance of the systems
        • Equipment for the assembly of the O-Rings
      • Anti extrusion rings
        • The role of the anti extrusion rings
        • Characteristics of the anti extrusion rings
        • The anti extrusion ring choice and the design
      • Some O-Ring applications
        • Role in the automobile industry
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      • O-Ring damaging
        • Introduction
        • Loss of elasticity
        • Exposure to air and light
        • Abrasion
        • O-Ring extrusion
        • Explosive decompression
      • Dimensional tables
      • Main compounds for O-Rings
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      • Introduction
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      • Introduction
      • Standards for O-Rings
      • Standards of general purpose
    • Elastic compounds
      • Introduction
      • List of names
      • Principal compounds
      • Operating conditions and contact fluids
      • Rainbow C recognition system
      • Detailed panorama on some compounds of O-rings
      • Principal table of the compounds
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Elastic compounds
  • Introduction
  • List of names
  • Principal compounds
  • Operating conditions and contact fluids
  • Rainbow C recognition system
  • Detailed panorama on some compounds of O-rings
  • Principal table of the compounds

Principal compounds

In this paragraph we describe the principal compounds that are used in the manufacture of O-Rings, and their principal characteristics.
Group M Compounds
  • ACM: polyacrylate
  • CSM: chlorosulphonal polyethylene
  • EPM – EPDM: ethylene-propylene and ethylene-propylene-diene
  • FPM (FKM): fluorocarbon
  • FFPM (FFKM): perfluoro elastomer
Group O Compounds
  • ECO: epichlorohydrin copolymers
Group R Compounds
  • BR: butadiene
  • CR: chloroprene
  • IIR: butyl
  • CIIR: chlorobutyl
  • NBR: acrylonitrile butadiene
  • HNBR: hydrogenated nitrile
  • SBR: styrene-butadiene
Group Q Compounds
  • MFQ (FVMQ): fluorosilicone
  • Q, MQ, MVQ (VMQ), LSR (liquid silicone): silicone rubbers
Group U Compounds
  • AU, EU: polyurethane
  • Introduction
  • List of names
  • Principal compounds
  • Operating conditions and contact fluids
  • Rainbow C recognition system
  • Detailed panorama on some compounds of O-rings
  • Principal table of the compounds
Elastic compound for O-rings
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Elastotech Srl -
Via Provinciale, 92/94 - 24060 Castelli Calepio, Bergamo, Italy

+39 035 4496000 - info@elastotech.it - VAT IT03812040164 - cookies - privacy - credits
O'ring certification
  • Share
Elastotech Srl
Via Provinciale, 92/94 - 24060 Castelli Calepio (BG) Italy
Tel. +39 035 4496000 - info@elastotech.it
P.IVA/VAT IT03812040164 - Reg. Imp. Bergamo 410502
Cap. Soc. i.v. € 270.000,00
cookies - privacy - credits
  • it
  • en
  • de
  • fr
  • es
Elastotech Srl -
Via Provinciale, 92/94 - 24060 Castelli Calepio, Bergamo, Italy

+39 035 4496000 - info@elastotech.it - VAT IT03812040164 - cookies - privacy - credits
O'ring certification
  • Share
Elastotech Srl
Via Provinciale, 92/94 - 24060 Castelli Calepio (BG) Italy
Tel. +39 035 4496000 - info@elastotech.it
P.IVA/VAT IT03812040164 - Reg. Imp. Bergamo 410502
Cap. Soc. i.v. € 270.000,00
cookies - privacy - credits