.275" (7.00MM) C/S Silicone 50 Duro O-Ring Cord Round


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  • Model: S50.275
  • 156 in Stock
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Min Qty:  3

O-Ring cord stock to make your own O-rings and gaskets

Please note: Priced & sold per foot. If ordering more than one foot (of the same size), the cord will come as one whole length.

Silicone O-Rings (VMQ) Duro 50 - Brick Red - FDA*:

The term silicone covers a large group of materials in which vinyl-methyl-silicone (VMQ) is often the central ingredient. Silicone elastomers as a group have relatively low tensile strength, poor tear and wear resistance. However, they have many useful properties as well. Silicone has a good heat resistance, good cold flexibility, and good ozone and weather resistance as well as good insulating and physiologically neutral properties.

Chemical Resistance:

  • Engine and transmission oil (e.g.: ASTM oil No.1)
  • Animal and vegetable oil and grease
  • Brake fluid (non-petroleum base)
  • Fire-resistant hydraulic fluid, HFD-R and HFD-S
  • High molecular weight chlorinated aromatic hydrocarbons (including flame-resistant insulators, and coolant for transformers)
  • Beer, Coffee, Whiskey and Milk
  • Moderate water resistance
  • Diluted salt solutions
  • Sea Water
  • Ozone, aging and weather resistant.

Not Compatible with:

  • Silicone Grease and Oils
  • Super-heated water steam over 250°F (121°C)
  • Acids and alkalis
  • Low molecular weight chlorinated hydrocarbons (trichloroethylene)
  • Chlorine wet or dry
  • Aromatic mineral oil
  • Transmission Fluid
  • Hydrocarbon based fuels
  • Diesel Oil
  • Aromatic hydrocarbons (benzene, toluene).

Compound Info:

  • A general purpose, Silicone compound
  • Color: Red
  • Duro: 50
  • FDA: Yes
  • ASTM D2000-99 Grade M4GE505 A19 B37 EO16 EO36 F19  ZZ-R-765 CLASS 2A & 2B GRADE 50

*All materials used in the manufacture of this material are on the FDA white list. The Finished product itself is not FDA approved.

Operating temperature: ­-80°F to +400°F (­62°C to +204°C)

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1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719