FVMQ - Fluorosilicone (FVMQ)
Clwyd reference FVMQ ASTM classification FVMQ Typical applications Static applications Aircraft seals Advantages Similar to Silicone but with enhanced resistance to hydrocarbon fuels and petroleum oils Excellent stability over extreme temperatures Good flame and water resistance Disadvantages Poor hot air resistance Poor physical characteristics (tear and abrasion) Available hardness range (Shore A) 25 - 85 Upper continuous service temp. 225°C Min. temp. for sealing applications -60°C Minimum non-brittle temp. -80°C Tensile strength (up to) 9 MPa Elongation at break (up to) 400% Price Bracket Medium ASTM 1 Oil Excellent ASTM 2 Oil Excellent ASTM 3 Oil Excellent Kerosene Excellent Liquid B Average Liquid 101 Excellent Phosphate ester None Ketone None Toluene Good Iso-octane Excellent Methanol Excellent Acid (weak) Average Acid (strong) None Base (weak) Average Base (strong) None Hydrogen sulphide Average Steam None Ozone Excellent Radiation Average
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