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Fluorosilicone Parts

Fluorosilicone is considerably more expensive than silicone, however it is developed for special applications where general resistance to oxidizing chemicals, aromatic and chlorinated solvent bases is required. At Minor Rubber, we offer recess style bumpers and insulation grommets in fluorosilicone.

Fluorosilicone is not recommended and is generally attacked when exposed to brake fluids, hydrazine and ketones. Fluorosilicone should not be confused with silicone in regard to high heat resistance.

Flurosilicone Characteristics

  • Common Names: Fluorosilicone
  • ASTM D2000 Classification: FK
  • Military (MIL-STD 417): MIL – R – 25988, Amend. 2
  • Chemical Definition: Fluorosilicone

General Characteristics

  • Durometer Range: 50 – 80
  • Tensile Range (P.S.I.): 500 – 800
  • Elongation (Max. %): 300
  • Compression Set: Good
  • Resilience – Rebound: Excellent
  • Abrasion Resistance: Poor
  • Tear Resistance: Poor
  • Solvent Resistance: Fair
  • Oil Resistance: Good
  • Low Temperature Usage: -80°
  • High Temperature Usage: up to 300°
  • Aging Weather – Sunlight: Excellent
  • Adhesion to Metals: Poor

For more information about fluorosilicone extrusions, please contact Minor Rubber today!