Fluorocarbon has excellent resistance to high tem¬peratures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. Low temperature resistance is normally not favorable and for static applications is limited to approxi¬mately -26°C (-15°F) although in certain situations it is suitable down to -40°C (-40°F). Under dynamic conditions, the lowest service temperature is between -15°C and -18°C (5°F and 0°F).
Gas permeability is very low and similar to that of butyl rubber. Special FKM compounds exhibit an improved resistance to acids, fuels, water and steam.
Heat resistance
• up to 204°C (400°F) and higher temperatures with shorter life expectancy
Cold flexibility
• Down to -26°C (-15°F) (some to -40°C) (-40°F)
Chemical resistance
• Mineral oil and grease, low swelling in ASTM oil No. 1, and IRM 902 and IRM 903 oils
• Non-flammable hydraulic fuels in the group HFD
• Silicone oil and grease
• Mineral and vegetable oil and grease
• Aliphatic hydrocarbons (fuel, butane, propane, natural gas)
• Aromatic hydrocarbons (benzene, toluene)
• Chlorinated hydrocarbons (trichlorethylene and car¬bon tetrachloride)
• Fuels, also fuels with methanol content
• High vacuum
• Very good ozone, weather and aging resistance
Not compatible with
• Glycol based brake fluids
• Ammonia gas, amines, alkalis
• Superheated steam
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