High Performance

For more than 65 years, Parco’s R & D laboratory has been developing rubber compounds to meet the world’s most demanding seal needs. Whether your seals require a UL-listing, military specification compliance, or exceptional physical properties, we likely have a material for you. Listed below are literature pieces for Parco’s newest and most popular high-performance compounds. Please click on the appropriate link to view the literature piece. If you don’t find a compound for your need, you can search our entire compound library of over 350 materials using our Compound Wizard.

• 60-Durometer Fluorocarbon (9167-60)
  Excellent resistance to low-temperature; TR-10 value of -40°F

• 75-Durometer Fluorocarbon (9009-75)
  Excellent resistance to compression set and fuel; meets AMS 7276

• 75-Durometer Fluorocarbon GFLT (9131-75)
  Excellent resistance to low-temperature and fuel; UL-157 listed;  peroxide-cured

• 75-Durometer Fluorocarbon Extreme (9166-75)
  Outstanding resistance to high-temperature and chemicals

• 90-Durometer Fluorocarbon (9009-90)
  Excellent resistance to compression set and fuel; meets AMS 7259

• 95-Durometer Fluorocarbon (9021-95)
  Outstanding resistance to high-temperature and compression set

• 95-Durometer Fluorocarbon (9162-95)
  Excellent resistance to explosive decompression and extrusion

• 65-Durometer Nitrile (4457-65)
  Meets AMS-P-5315; excellent resistance to low-temperature

• 70-Durometer Nitrile (0228-70)
  Outstanding resistance to fuels; UL-157 listed

• 70-Durometer Nitrile (4067-70)
  Meets MIL-P-25732; excellent resistance to low-temperature

• 70-Durometer Nitrile (4200-70)
  Excellent physical properties; outstanding resistance to compression set

• 70-Durometer Nitrile (4367-70)
  Meets AMS-P83461; excellent resistance to low-temperature

• 90-Durometer Nitrile (4081-90)
  Meets MS 28778 and AMS P 5510; excellent resistance to low-temperature

• 90-Durometer Nitrile (4623-90)
  Outstanding resistance to compression set; peroxide-cured EPDM

• 70-Durometer EPDM (5778)
  NSF-61 listed; peroxide-cured; internally lubricated HNBR

• 70-Durometer HNBR (2269-70)
  Excellent resistance to compression set and oil at high temperatures

• 80-Durometer HNBR (2285-80)
  Excellent resistance to greases, abrasion, and compression set

• 90-Durometer HNBR (2269-90)
  Excellent resistance to extrusion, compression set, and oils at high temperatures

• 70-Durometer Fluorosilicone (1933-70)
  Meets AMS-R-25988 and MIL-DTL-25988; excellent resistance to low-temperature