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Parker's silicone (VMQ) O-rings are very compatible with PFPE, cold water, and ozone.
Parker's Silicone 70 Durometer O-Ring, Rust , Mil/Aero (S1224-70 ZZ-R) Silicones have good ozone and weather resistance as well as good insulating and physiologically neutral properties. However, silicone elastomers as a group, have relatively low tensile strength, poor tear strength and little wear resistance.
• Heat resistance
• Up to approximately 204°C (400°F) special compounds up to 260°C (500°F)
• Cold flexibility
• Down to approximately -54°C (-65°F) special compounds down to -115°C (-175°F)
• Chemical resistance
• Animal and vegetable oil and grease
• High molecular weight chlorinated aromatic hydrocarbons (including flame-resistant insulators, and coolant for transformers)
• Moderate water resistance
• Diluted salt solutions
• Ozone, aging and weather
• Used for A-A-59588 2a 2b GR 70, AMS 3304, AMS 3357, MIL-G-21569
Not compatible with:
• Superheated water steam over 121°C (250°F)
• Acids and alkalis
• Low molecular weight chlorinated hydrocarbons (trichloroethylene)
• Hydrocarbon based fuels
• Aromatic hydrocarbons (benzene, toluene)
• Low molecular weight silicone oils
*Custom sizes and coatings/markings are available upon request. Contact Parker O-Ring Division at 859-269-2351 for design and pricing assistance.
No CAD files available
O-Ring & Engineered Seals Division
2360 Palumbo Drive
Lexington,
KY
United States
40509
Phone
859 269 2351
Fax
859 335 5128
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