PetrozTM Perfluoroelastomer (FFKM): The Superior Choice in Sealing

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Material & Design Solutions’ (MDS) Petroz™ perfluoroelastomer (FFKM) is a superior choice for sealing in the most challenging environments. Effective at temperatures up to 250°C (482°F), Petroz compounds have a broad chemical resistance in aggressive chemical environments such as H2S, amine-based (high pH) corrosion inhibitors, organic solvents, and strong acids. These compounds also offer a significantly lower compression set compared to competitive products providing longevity and a more effective sealing solution.

Petroz FFKM compounds are designed to operate and excel in high temperature, high pressure, and hostile chemical environments. In addition, Petroz 595 has superior rapid gas decompression (RGD) resistance and has demonstrated excellent RGD resistance in laboratory (ISO 23936-2 and NORSOK M-170) testing.   

Petroz compounds are totally fluorinated and offer the ultimate chemical resistance required in downhole applications as well as in mechanical seals, pumps, and valves in a variety of industries.

Petroz Finished Parts & Typical Applications

MDS offers Petroz FFKM in the form of molded finished products for critical service applications. Typical applications include: 

  • O-Rings
  • V-Rings
  • Gaskets
  • T-Rings
  • X-Rings
  • Custom molded products

Petroz FFKM Grades

Petroz 375

  • A 75A durometer general purpose FFKM with exceptional compression set properties and excellent chemical resistance.

Petroz 390

  • A 90A durometer FFKM with unsurpassed compression set properties while maintaining excellent chemical resistance.

Petroz 595

  • A 95A durometer FFKM specifically compounded for rapid gas decompression (RGD) resistance that consistently outperforms competitors’ RGD compounds.

Petroz FFKM Chemical Compatibility & Characteristics

  • Abrasion resistance: Excellent
  • Acid resistance: Excellent
  • Chemical resistance: Excellent
  • Heat resistance: Excellent
  • Electrical properties: Excellent
  • Oil resistance: Excellent
  • Ozone resistance: Excellent
  • Weather resistance: Excellent
  • Water steam resistance: Excellent
  • Flame resistance: Good
  • Impermeability: Good
  • Cold Resistance: Fair

Petroz FFKM Typical Properties

Below is a chart outlining the typical properties of Petroz FFKM. Please keep in mind that these typical values are not intended for specification purposes. If minimum certifiable properties are required please see your local Material & Design Solutions representative. 

Property Units Test Method Petroz 375 Petroz 390 Petroz 595
Hardness, Shore A - ASTM D2240 75 90 95
Tensile Strength @ Break psi (MPA) ASTM D412 3400 (23) 4000 (27) 3000 (20)
Tensile Elongation @ Break % ASTM D412 160 100 75
Tensile Modulus @ 50% Elongation psi (MPA) ASTM D412 600 (4) 1300 (9) 2500 (17)
Specific Gravity - ASTM D792 1.99 1.99 1.95
Compression Set: 70 hrs @ 392°F (200°C) % ASTM D395 14 10 20