Vespel® SP-1

DuPont™ SP-1 is an unfilled Vespel®. SP-1 is the most widely known and most popular because it provides superior wear and insulation properties as well as operating temperatures from cryogenic to 300°C. SP-1 also has low electrical conductivity. It possesses the highest elongation and purity of the entire SP line of materials.

  • High service temperatures
  • Low friction for smooth operation
  • Long wear life
  • Low creep, even at elevated temperatures
  • Low wear on mating metal components
  • Good thermal insulating properties
  • Excellent dimensional stability
  • Good chemical resistance
  • A lightweight alternative to metal
  • Excellent sealing characteristics
  • Heat Shields
  • Pivot bushings on unison ring
  • Engine duct seals
  • Bellcrank bushings
  • Locking fasteners
  • Splines